Conference presentations and publications


WURC Inauguration       General presentations

Project 1     Project 2     Project 3     Project 4     Project 5     Project 6

Project 7     Project 8     Project 9     Project 10   Project 11   Project 12 

Project 13   Project 14   Project 15   Project 19   Project 20   Project 25

Project 30   Project 32   Project 33

Licentiate Examinations            Ph.D thesis

WURC Internal Reports (University/Industry)  Download

WURC Industry and university "examensarbeten"

WURC Industry interactions (Seminars)

WURC Internal Seminars
1998     1999    2000

WURC International Seminars:  
1998
     1999    2000     2001    2002      2003     2004     2005

 

 

  

 

WURC Inauguration

Date: 10 April 1997
Place:
Swedish University of Agricultural Sciences, Uppsala, 
        Main lecture hall

Wood Ultrastructure Seminar
Chairman: Inger Eriksson, SCA AB

The true structure of wood fibres
Thomas Nilsson and Geoffrey Daniel, SLU, Uppsala

Control of wood formation
Björn Sundberg, SLU, Umeå

On the formation of lignin in the wood cell wall
Gösta Brunow, University of Helsinki, Finland

Three-dimensional structure of crystalline cellulose microfibrils
Olle Teleman, VTT, Finland

Chiral Properties of cellulose and wood fibres
Derek Gray, PAPRICAN, McGill University, Montreal, Canada

 

General presentations 

Swan, B. 1997. WURC – Wood Ultrastructure Research Centre, centrum för forskning om vedfiberns ultrastruktur. Svensk Papperstidning 100:4, 17. (in Swedish)

Swan, B. 1997. Mycket duktiga forskare knyts till WURC. Svensk Papperstidning 100:5, 12. (in Swedish)

Swan, B. 1998. Stort intresse för årets WURC-seminarium. Svensk Papperstidning/Nordisk cellulosa 101:6, 67-68. (in Swedish)

Krantz, T. 1999. WURC seminariet - Cellulosastruktur och biosyntes. Svensk Papperstidning 102:6, 35-35. (in Swedish)

Eriksson, L. 1999. Från genmanipulering inom massa- och papper: forskning och framsteg inom massa- pappersindustrin. Svensk Papperstidning 102:9, 35-35. (in Swedish)

Daniel, G. 1999. WURC. Biotechnology in Mälardalen, Uppsala University, Oct. 1999.

Daniel, G. 1999. The Wood Ultrastructure Research Centre. Minisymposium: Microbes, Trees, Wood and Forest Ecosystem, SLU, Uppsala.

Daniel, G. 2000. The Wood Ultrastructure Research Centre (WURC). SPCI Ekmandagarna. 7-9 February.

Daniel, G. & P. Ander. 2000. Internationella forskare gäster vid WURC-seminarium. Svensk Papperstidning 103:7, 20.

Daniel, G. & A. Brolin. 2000. "Varför djup kunskap om vedfibrer är viktig för skogsindustrins utveckling." Kompetenscentrumdagen, Matematiskt-informationsteknologiskt centrum,  Uppsala Universitet, 25 oktober 2000.

Ödberg, L. 2001. Seminariedag om vedfiberns ultrastruktur. Svensk Papperstidning 104 (In press; in Swedish)

Daniel, G, & L. Ödberg. 2005. Fibern avslöjad (WURC special). SPCI/Svensk Pappertidning Nr 5 100-104.

Daniel, G. 2005. Wood & pulp fibre research at the wood ultrastructure research centre (WURC), Uppsala, Sweden. In: International Symposium on Wood Science & Technology (IAWPS 2005), 27-30 November 2005, Yokohama, Japan. pp. 241- 241.

Rundlöf, M., L. Eriksson, G. Daniel, L.Ödberg 2005. WURC; Ett kompetenscentrum för skogindustrin“ 12pp.

 

 

Project 1

Conference presentations
Bardage, S. L. 2000. Three-dimesional visualisation of wood fibres: 3D modelling Proc. Workshop Fibre Wall & Microfibril Angle. COST Action E20 Wood Fibre Cell Wall Structure, 11-13 May 2000, Margi Hotel, Vouliagméni, Greece. Printed by NTUA, Athens, Greece and MC/WG of COST Action E20, p. 20.

Nilsson, T. 2000. Microfibril angle in spruce wood. IAWS conference. 17-18 July 2000, Reading, U.K. (Oral presentation).

Bardage, S. L., Daniel, G., and Singh, A.  2002. Collapse behaviour of Kraft cooked Norway spruce fibres. In Cell Wall and Stress, Program and Proceedings. COST Action E20 Wood Fibre Cell Wall Structure, 30 May to 1 June, Reims, France, L15.

Bardage, S.L.,  L. Donaldson, C. Tokoh & G. Daniel, 2003. Application of high resolution electron microscopy and image analysis for characterising pulp fibre surfaces. Proc. Workshop “Building a Cell Wall”. COST Action E20 Wood Fibre Cell Wall Structure, September 4-6, Helsinki, Finland, p. 28.  

Dennis W., R. Cristian N., Bardage S. , Kristofer G. 2006. Finite element modelling of mechanical properties of geometrically characterized wood fibres. Proceedings of the 5th Plant Biomechanics Conference, 2006-08-28 - 2006-09-01, KTH, Stockholm, Sweden, ISBN 91-86018-12-4. Vol 1: 175-180.

Gamstedt, E.K., Bardage, S.L., Neagu, R.C. 2006. Hygroelastic behaviour of compression wood tracheids based on analytical composite mechanics. EU COST E50, Cell Wall Macromolecules and Reaction Wood (CEMARE), Warsaw agricultural University, Faculty of Forestry, Department of Forest Utilization. 19-21 October 2006.

 

Publications
Brändström, J., G. Daniel & T. Nilsson. 2001. Use of soft rot cavities to determine microfibril angles in wood; advantages, disadvantages and possibilities. Holzforschung, 56(5):468-472.

Bardage. S. L. 2001. Three-dimensional modeling and visualization of whole Norway spruce latewood tracheids. Wood and Fiber Science 33(4): 627-638.

Bergander, A., Brändström, J., Daniel, G. & L. Salmén 2001. Fibril angle variability in earlywood of Norway spruce using soft rot cavities and polarization confocal microscopy. Journal of Wood Science, 48(4):255-263.

Singh, A.P. & G. Daniel. 2001. The S2 layer in the tracheid walls of Picea abies: inhomogeneity in lignin distribution and cell wall microstructure. Holzforschung. (In press)

Brändström, J. 2001. Micro- and ultrastructural aspects of Norway spruce tracheids: A review. IAWA Journal, 22(4): 333-353.

Bardage, S. L., Daniel, G. & A. Singh. 2002. Three-dimensional analysis of the collapse behavior of Kraft cooked Norway spruce fibers.  Wood and Fiber Science 34(3): 382–390.

Brändström, J., S.L. Bardage, G. Daniel & T. Nilsson. 2003. The structrural organisation of the S1 cell wall layer of Norway spruce tracheid. IAWA Journal, 24(2): 27-40.

Bardage, S. L.  & Daniel, G. 2003. Three-dimensional morphological aspects of wood and pulp fibres. COST Action E20, “Wood Fibre Cell Walls: Methods to Study Their Formation, Structure and Properties”, Eds: U. Schmitt, P. Ander, J. Barnett, A.M. Emons, P. Saranpää, and S. Tschegg, to be published by OPOCE, EC, Brussels. 

Brändström, J. 2004. Ultrastructure of compression wood fibres in fractions of a thermomechanical pulp. Nord. Pulp Paper Res. J. 13-17.

Bardage, S., Donaldson, L., Tokoh, C. and Daniel G. 2004. Ultrastructure of the cell wall of unbeaten Norway spruce pulp fibre surfaces. NPPRJ 19: 448-452.

Brändström, J. 2004. Microfibril angle of the S1 cell wall layer of Norway spruce compression wood tracheids. IAWA J. 25(4) 415-423.

Brändström, J., J.-P. Joseleau, A. Cochaux, N. Giraud-Telme, and K. Ruel. 2005. Ultrastructure of commercial recycled pulp fibers for the production of packaging paper. Holzforschung 59 (6): 675-680 2005

Mayr, S., Bardage, S. and J. Brändström. 2006. Hydraulic and anatomical properties of light bands in Norway spruce compression wood. Tree Physiology 26:17–23.

Hildén, L., Zhang, J., Persson, E., Johansson, G. and J. Brändström. 2006. Distribution and characterisation of discolouring substances in Norway spruce (Piceaabies L. Karst.) pulp wood stored under watersprinkling. Holzforschung (In press)

 

Project 2

Conference presentations
Daniel, G. 1997. Use of HR-Cryo-FE-SEM for studies on wood and pulp fibre ultrastructure. International Cryo-Electron Microscopical Meeting, York, UK, June 1997.

Daniel, G. 1997. Studies on wood and pulp fibre ultrastructure using HR-Cryo-FE-SEM. Tappi Biological Sciences Symposium, San Francisco, USA. Abstract p.447.

Awano, T. K. Takabe, M. Fujita & G. Daniel. 1998. Immuno-FE-SEM reveals distribution of xylan in beech. 49th Annual meeting of the Japanese Wood Research Society, April 1998.

Daniel, G., K. Takabe, & I. Duchesne. 1999. Visualization of the Surface Ultrastructure of Spruce Pulp Fibres Using Field Emission-SEM and TEM-Replica Techniques; pp 18-27. In: Proceedings of "Microscopy as a Tool in Pulp and Paper Research and Development, June 21-22, STFI, Stockholm.

Daniel, G. & I. Duchesne. 1998. Revealing the surface ultrastructure of spruce fibres using Field Emission SEM. 7th Intern. Conf. On Biotechnology of Pulp and Paper Industry, Vancouver BC, June 1998, pp 81-84.

Daniel, G., 1999. Processing samples for light and electron microscopy. In "Microscopy as a tool in the pulp and paper industry - Workshop on sample preparation", pp. 1-31. 28-29/10-1999, (EC Fair -98-3681). The Finnish Pulp and Paper Research Institute, KCL, Espoo, Finland.

Duchesne, I. & G. Daniel. 1999. The ultrastructure of wood fibre surfaces as shown by a variety of microscopical methods. In: Proceedings of "Microscopy as a tool in Pulp and Paper Research and Development" (EC Fair -98-3681), STFI, Stockholm, June 21-22, 1999.

Duchesne, I. & G. Daniel. 1999 " Changes in spruce fibre surface ultrastructure during kraft pulping - A field emission study. "Microscopy as a tool in the pulp and paper industry - Workshop on sample preparation", p 165, 28-29/10-1999, (EC Fair -98-3681). The Finnish Pulp and Paper Research Institute, KCL, Espoo, Finland.

Daniel, G. & I. Duchesne. 2000. FE-SEM,TEM In "Microscopy as a tool in Pulp and Paper Research and Development", Synthesis of future problems and needs of microscopy in pulp and paper  (EC Fair -98-3681), Madrid, Sept 28-29, 2000.

Daniel, G, U. Molin, I. Duchesne & S. Bardage. 2001. Ultrastructural (FE-SEM, TEM) observations on PFI refined novel spruce kraft pulp fibres of varying molecular weight. 8th Int. Conf. Biotechnology in the Pulp Paper Industry, June 4-8, 2001. Abstract p253 -254

Daniel, G., Volc, J.& M-L.Niku-Paavola. 2001. TEM immunocytochemical and HR-Cryo FE-SEM studies on white rot decay of lignocellulose. 8th Int. Conf. Biotechnology in the Pulp Paper Industry, June 4-8, 2001. Abstract p42 - 43.

Duchesne, I., G.C. van Leerdam, G. Daniel & J. Basta. 2001. Characterisation of pulp fibre surfaces using X-ray photoelectron spectroscopy and field emission-scanning electron microscopy. In: Proceedings of Workshop on advanced methods for lignocellulosics and paper products characterisation. June 18-19. Grenoble, France.

G.C. van Leerdam, J. Basta, I. Duchesne & G. Daniel. 2001. The use of micro-analytical techniques for the characterization of pulp. 9th European conference on applications of surface and interface analysis, 30 September - 5 October 2001, Avignon, France.

Publications
Awano, T., Takabe, K., Fujita, M. & G. Daniel. 2000. Deposition and localization of glucuronoxylans in the secondary cell wall of Japanese beech as observed using immuno FE-SEM. Protoplasma, 212: 72-79.

Duchesne, I. & G. Daniel 1999. The ultrastructure of wood fibre surfaces as shown by a variety of microscopical methods - a review. Nordic Pulp Paper Res. J. 14(2): 129-139.

Duchesne, I. & G. Daniel 2000. Changes in surface ultrastructure of Norway spruce fibres during kraft pulping - Visualization by Field-Emission-SEM. Nordic Pulp Paper Res J., 15(1): 54-61.

Duchesne, I., Hult, E-L., Molin, U., Daniel, G., Iversen, T. & H. Lennholm. 2001. The effect of hemicellulose on fibril aggregation of kraft pulp fibres as revealed by FE-SEM and CP/MAS 13C-NMR. Cellulose. (In press).

Duchesne, I., van Leerdam, G.C., Daniel, G. & J. Basta. 2001. Combining XPS and FE-SEM for studying the surface composition of kraft pulp fibres. (Submitted to JPPS).

Singh, A., Daniel, G. & T.  Nilsson. 2001. Ultrastructure of the S2 layer in relation to lignin distribution in Pinus radiata tracheids. Journal of Wood Science.(In press).

Daniel, G., Duchesne, I.,  Tokoh, C. & Bardage, S. 2003. The surface ultrastructure and intracellular nano-structure of wood fibres: electron microscope methods and applications.  COST Action E20, “Wood Fibre Cell Walls: Methods to Study Their Formation, Structure and Properties”, Eds: U. Schmitt, P. Ander, J. Barnett, A.M. Emons, P. Saranpää, and S. Tschegg, to be published by OPOCE, EC, Brussels. 

Thygesen, A., G. Daniel, H. Lilholt & A.B. Thomsen. 2005. Hemp fibre microstructure and fungal defibration to obtain fibres useful as reinforcement of composite materials. J. Natural Fibres 2, 19-37.

Hafrén, J. & G. Daniel. 2005. Chemoenzymatic modifications of charge in chemithermomechanical wood pulp. NPPJ, 20, (2), 200-204.

Thygesen, A., A-B. Thomsen, G. Daniel & Hans Lilholt. 2005. Composites based on fungal retted hemp fibres and epoxy resin (submitted to Industrial Crops & Products)  

Heijnesson-Hultén, A., Basta, J., Larsson, P. and Ernstsson, M. 2006. Comparison of different XPS methods for fibre surface analysis.  Holzforschung 60, 14-19.



Project 3

Conference presentations
Ander, P. et al. 1998. The in vitro 14C-labelled kraft pulp assay as used for evaluation of laccases and mediators intended for pulp bleaching. 7th Int. Conf. Biotechnol. and Pulp Paper Ind., Vancouver BC, June 1998, Vol. A, pp. A 111-A 115.

Nyholm, K. & P. Ander. 1999. Dislocations in wood fibres. SPCI´ 99 June 1-4, Stockholm, (Poster).

Nyholm, K. & P. Ander. 1999. Dislocations in wood fibres. Skogskonferensen "Trädets variationsrikedom - problem och möjligheter", SLU, Uppsala, 30 Nov-1. Dec 1999. Poster.

Ander, P. & K. Nyholm. 2000. Deformations in wood and spruce pulp fibres: Their importance for wood and pulp properties. Keynote Lecture at First Int. Symp. on Wood Machining Properties of wood and wood composites related to wood machining. 27-29 September, Vienna, Austria.

Nyholm, K. & P. Ander 2000. Dislocations in wood fibres. Proc. Workshop Fibre Wall & Microfibril Angle. COST Action E20 Wood Fibre Cell Wall Structure, 11-13 May, 2000, Athens, Greece. Printed by NTUA, Athens, Greece and MC/WG of COST Action E20, p. 58. (Poster).

Ander, P. &  K. Nyholm 2001. The effect of cellulases, hemicellulases and laccase/HBT on spruce pulp fibre deformations. Proc. 8th Int. Conf. Biotechnol. Pulp and Paper Ind., June 4-8, 2001, Helsinki, Finland, O6/33, p.71-73.

Nyholm, K. & P. Ander 2001. The connection between spruce pulp fibre dislocations and balloon swelling. Proc. 8th Int. Conf. Biotechnol. Pulp and Paper Ind., June 4-8, 2001, Helsinki, Finland, PI/5, p. 95. (Poster).

Ander, P. 2001 Dislocations and balloon swelling of spruce pulp fibres for studying cell walls. COST Action E20 Wood Fibre Cell Wall Structure.  Methods to localise and characterise cell wall components. CERMAV, Grenoble, France, 26-27 October 2001 (Abstract). Available from P. Ander and at www-wurc.slu.se.

Ander, P. &  Nyholm, K. 2001. The effect of cellulases, hemicellulases and laccase/HBT on spruce pulp fibre deformations. Proc. 8th Int. Conf. Biotechnol. Pulp and Paper Ind., June 4-8, 2001, Finlandia Hall, Helsinki, Finland, O6/33, p.71-73.

Ander, P. & Marklund, A. (2003) Dislocations and strength properties of softwood industrial pulps. WURC Intern rapport nr 4. WURC, SLU, Inst f. Trävetenskap, Uppsala Februari 2003. ISBN 91-576-6647-4.

Ander, P. (2003) Project 3: Dislocations in wood fibres. Poster at WURC International Seminar, 23 April, SLU, Uppsala and at COST Action E20, Workshop Building a Cell Wall, Helsinki 4-6/9 2003. 

Ander, P., Burgert, I. and Frühmann, K. (2003) The Possible Relationship Between Dislocations and Mechanical Properties of Different Spruce Fibres: A Single Fibre Study. Poster at Second Int. Conf. Europ. Soc. Wood Mechanics, Stockholm, Sweden, May 25th – 28th, 2003, and at COST Action E20, Workshop Building a Cell Wall, Helsinki 4-6/9 2003. 

Ander, P. (2004) A new method to compare industrial and laboratory pulp fibres in strength delivery (SD) investigations. Proc. WURC International Seminar “From the forest to fibres & microfibrils and Properties and future use of fibres”. SLU, Uppsala, Sweden. 

Ander, P., Burgert, I. and Frühmann, K. (2004) The Possible Relationship Between Dislocations and Mechanical Properties of Different Spruce Fibres: A Single Fibre Study. Proc. Second Int. Conf. Europ. Soc. Wood Mechanics, Stockholm, Sweden, May 25th – 28th, 2003. Ed. L. Salmén. STFI-Packforsk AB, Stockholm, Sweden, pp. 63-66. ISBN 91-86018-10-8. 

Ander, P. and Daniel, G. (2004): Effects of HCl, Cellulase and Sulphuric Acid on Dislocations in Wood and Wood Fibres. Proc. 2nd Int. Symp. on WOOD MACHINING, Properties of Wood and Wood Composites Related to Wood Machining. July 5-7, 2004, Vienna, Austria. Eds: S.E. Stanzl-Tschegg, M. Gindl, G. Sinn. BOKU, University of Natural Resources and Applied Life Sciences, Vienna, pp. 247-254. ISBN 3-9501315-2-3.       

                        Ander, P. and Daniel, G. (2004): A novel method to compare industrial and laboratory pulp fibres using hydrochloric acid and FibreMaster analyses. Proc. Eighth European Workshop on Lignocellulosics and Pulp. August 22-25, 2004, Riga, Latvia, pp. 49-52. ISBN 9984-19-611-9. 

Ander, P. and Daniel, G. (2004) Characterization and Comparison of Industrial and Laboratory Pulp Fibres using HCl, Cellulase and FibreMaster Analyses. Proc. 9th ICBPPI, Durban, SA, pp. 102-104. 

Ander, P. and Daniel, G. (2004): Morphology of spruce fibre dislocations as studied by balloon swelling and acid cleavage – light and electron microscope observations. COST Action E20, “Wood Fibre Cell Walls: Methods to Study Their Formation, Structure and Properties”, Eds: U. Schmitt, P. Ander, J. Barnett, A.M. Emons, G. Jeronimidis, P. Saranpää, and S. Tschegg. Swedish University of Agricultural Sciences, Uppsala, Sweden. ISBN 91-576-6803-5, pp. 203-215. 

Schmitt, Ander, P., et al. (2004). Wood Fibre Cell Walls: Methods to Study their Formation, Structure and Properties. COST Action E20. Printed by Swedish University of Agricultural Sciences, Uppsala, Sweden. ISBN 91-576-6803-5, pp. 1-308. 

Thygesen, L.G. and Ander, P. (2005): Quantification of dislocations in spruce pulp and hemp fibres using polarized light microscopy and image analysis. Nordic Pulp Paper Res. J. 20(1), 64-71.

 

Ander P., Daniel G., Garcia-Lindgren C. and Marklund A. (2005): Characterization of industrial and laboratory pulp fibres using HCl, Cellulase and FiberMaster analyses. Nordic Pulp and Paper Res. J. 20(1), 115-120.

Ander, P. and Daniel, G. (2005). Comparison of spruce fibre cleavage using HCl and cellulase. Poster abstract for COST Action E23 “Biotechnology for the pulp and paper industry”. 2005 Conference on “Biotechnology for Pulp and Paper Manufacture: From Tailor-Made Biocatalysts to Mill Application”, Baiona (Pontevedra, Spain), 26-29 April 2005, pp. 101-104. 

Ander P. and Daniel, G. (2005). Abstract: “Effect of HCl and dislocations on properties of spruce pulp fibres” & Poster: “The HCl-method for determination of dislocations and spruce pulp fibre properties”. COST Action E50 “Cell wall macromolecules and reaction wood”, LMGC, Montpellier, France, 3-4 November

Ander P. and Daniel, G. (2006). Dislocation counting and comparison of pulp fibre properties after HCl-treatment and fibre length determination. Proc. 5th Plant Biomechanics Conference, Stockholm, Vol. I. August 28  September 1, 2006. Ed.: L. Salmén. STFI-Packforsk, Stockholm, Sweden, ISBN 91-86018-12-4, pp. 169-174.

 

Publications
Ander, P. & K. Nyholm 2000. Deformations in wood and spruce pulp fibres: Their importance for wood and pulp properties. Poc. Int. Symp. Wood Machining, Properties of wood and wood composites related to wood machining. Eds: S.E. Stanzl-Tschegg and A. Reiterer, 27-29 September, Vienna, Austria. ISBN 3-9501315-0-7.

Ander, P. &  K. Nyholm 2001. The effect of cellulases, hemicellulases and laccase/HBT on spruce pulp fibre deformations. Proc. 8th Int. Conf. Biotechnol. Pulp and Paper Ind., June 4-8, 2001, Helsinki, Finland, O6/33, p.71-73.

Nyholm, K., Ander, P., Bardage, S. & G. Daniel. 2001. Dislocations in wood and pulp fibres - their origin, characteristics and importance - a review. Nordic Pulp and Paper Res. J. 16(4): 376-384.

Nyholm, K. & G. Daniel. 2001. Morphological aspects of fibre ballooning and dislocations in spruce fibres - Light and electron microscope observations. (Manuscript).

Ander P. 2002  Dislocations, Polarized Light Colour Patterns and Acid Cleavage of Spruce Pulp Fibres. Proc. Workshop Cell Wall and Stress. COST Action E20 Wood Fibre Cell Wall Structure, 30th May-1st June, Reims, France. Printed by INRA, Reims and MC/WG of COST Action E20, P24-P26.  Available from P. Ander and at www-wurc.slu.se.

Ander, P. 2002. Dislocations and balloon swelling in spruce kraft pulp fibres – Effect of cellulases, xylanase and lacase/HTB. Progress in Biotechnology 21, BIOTECHNOLOGY IN THE PULP AND PAPER INDUSTRY, Eds: L. Viikari and R. Lantto, Elsevier Science B.V., pp. 49-59

Ander, P. and Daniel, G. 2003. Morphology of spruce fibre dislocations as studied by balloon swelling and acid cleavage  light and electron microscope observations. COST Action E20, “Wood Fibre Cell Walls: Methods to Study Their Formation, Structure and Properties”, Eds: U. Schmitt, P. Ander, J. Barnett, A.M. Emons, P. Saranpää, and S. Tschegg, to be published by OPOCE, EC, Brussels.

Terziev, N., G. Daniel, & A. Marklund. 2005. Dislocations in Norway spruce fibres and their effect on the properties of pulp and paper. Holzforschung, 59, 16 3- 169

 

Project 4

Conference presentations
Larsson, P.T., K. Wickholm & T. Iversen. 1999. Structural elements in cellulose I. 10th ISWPC, 1: 602-607.

T. Iversen, E.-L. Hult, P.T. Larsson, K. Wickholm: CP/MAS 13C NMR spectroscopy applied to structure studies on cellulose I. 219th ACS National Meeting, San Fransisco, CA (2000) CELL 145.

K. Wickholm, E.-L. Hult, P.T. Larsson, T. Iversen: Quantification of cellulose forms in complex cellulose materials. Proc. 6th EWLP (2000) 19-22.

E.-L. Hult: Ultrastructure of wood and pulp fibers. Ekmandagarna, Stockholm (2001)

E.-L. Hult, T. Iversen, P.T. Larsson, K. Wickholm: CP/MAS 13C NMR spectroscopy applied to structure and interaction studies on cellulose. EUROCARB XI, Lisboa, Portugal (2001)

Publications
Hult, E-L. P.T. Larsson & T. Iversen. 2000. A comparative CP/MAS 13C-NMR study of cellulose structure in spruce wood and kraft pulp. Cellulose 7 (1): 35-55.

Hult, E-L., P. T. Larsson & T. Iversen. 2001. A study of supermolecular changes in the cellulose and hemicellulose structure during kraft pulping.
Nordic Pulp and Paper Research Journal 16 (1): 46-52.

Hult, E-L., T. Larsson & T. Iversen. 2001. Cellulose fibril aggregation – An inherent property of kraft pulps.
Polymer 42 (8): 3309-3314.

Wickholm. K., E-L. Hult, P. T. Larsson and T. Iversen. T. 2001. Quantification of cellulose forms in complexcellulose materials: A chemometric model. Cellulose 8:139-148. 

Hult, E-L., Larsson P. T. and Iversen, T. 2000. Determination of the supermolecular structure of polysaccharides in unbbleached sulphite pulps by CP/MAS13C-NMR.  Holzforschung, 56:179-184.

Duchesne, I., E.-L. Hult, U. Molin, G. Daniel, T. Iversen & H. Lennholm. 2001. The effect of hemicellulose on fibril aggregation of kraft pulp fibres as revealed by FE-SEM and CP/MAS 13C-NMR. Cellulose 8:103-111. 

E.-L. Hult, T. Liitiä, S.L. Maunu, B. Hortling, T. Iversen. 2002. A CP/MAS 13C NMR study of cellulose structure on the surface of refined kraft pulp fibers. Carbohydr. Polym. 49: 231-234.

 

 

Project 5

Conference presentations
Molin, U. 1999. Hemicellulosa/cellulosa och styrka. Presentation at the Ekmandagarna, SPCI, 19-20 January, Stockholm, Sweden.

Molin, U. & H. Lennholm. 2000. The influence of molecular weight on mechanical properties of pulp fibres. 54th Appita Annu. Conf.,  Proc. Vol. 2, 615-621.

Berggren, R., U. Molin, F. Berthold & H. Lennholm. 2001. Alkalisk nedbrytning av cellulosa i björk och gran. Är tid och alkalihalt utbytbara? Presentation at the Ekmandagarna, SPCI, 5-7 February, Stockholm, Sweden.

Daniel, G, U. Molin, I. Duchesne and S. Bardage 2001. Ultrastructural (FE-SEM, TEM) observations on PFI refined novel spruce kraft pulp fibres of varying molecular weight. 8th Int. Conf. Biotechnology in the Pulp Paper Industry, June 4-8, 2001. Abstract p253 -254.

Publications
Molin, U. & A. Teder. 1999. Influence of changes in cellulose and hemicellulose proportions on fibre and paper properties. (Submitted to Nordic Pulp and Paper Res. J.).

Molin, U. & H. Lennholm. 2000. The influence of molecular weight on mechanical properties of pulp fibres. (Submitted to APPITA Journal).

Duchesne, I., E.-L. Hult, U. Molin, G. Daniel, T. Iversen & H. Lennholm. 2001. The effect of hemicellulose on fibril aggregation of kraft pulp fibres as revealed by FE-SEM and CP/MAS 13C-NMR. Cellulose (In press).

 

 

Project 6

Conference presentations
Berglund, A., H. Brelid, R. Simonson & A. Rindby 1999. Spatial distribution and chemical attachments of metal ions in spruce wood. Poster and "highlights"-presentation at WURC International Seminar, Uppsala, Sweden, 21st April, 1999.

Berglund, A., H. Brelid & R. Simonson 1999. Spatial distribution and chemical attachments of metal ions in spruce wood. Oral presentation and extended abstract, 10th International Symposium on Wood and Pulping Chemistry (ISWPC), Yokohama, Japan, 7-10 June, 1999.

Brelid, H., Rinby, A., Vincze, L. 2003. Analysis of the redistribution of metal ions in softwoods during Kraft pulping by synchrotron radiation µ-XRF. ISWPC - Madison, June 2003 (In press).

Publications
Berglund, A., H. Brelid, A. Rindby & P. Engström 1999. Spatial Distribution of Metal Ions in Spruce Wood by Synchrotron Radiation Microbeam X-ray Fluorescence Analysis. Holzforschung, 53: 474-480.

Berglund, A., H. Brelid, A. Rindby & P. Engström, 2000. Spatial distribution and chemical attachments of metal ions in spruce wood. J. of Pulp and Paper Science, 26: 352-357.

 

 

Project 7

Conference presentations
Önnerud, H., M. Palmblad, T. Eriksson & G. Gellerstedt. 1999. "Analysis of the native lignin structure using FT-ICR-MS" 10th International Symposium on Wood and Pulping Chemistry, Yokohama, Japan (1999), Vol. 1: 166-171.

Önnerud, H. and G. Gellerstedt. 2001. Inhomogeneities in the chemical structure of spruce lignin. ISWPC Symposium, Nice France,Vol. 1: 59-62.

Publications
Önnerud, H. and G. Gellerstedt. 2002. Investigation of Lignin Oligomers Using Electrospray Ionisation Mass Spectrometry. Lignin.Holzforschung, 57(1):37-43.

Önnerud, H. and G. Gellerstedt. 2002. Inhomogeneities in the Chemical Structure of Spruce Lignin. Holzforschung, 57(2): 165–170.

 

 

Project 8

Conference presentations
Vickes, M. 1999. Tvådimensionell FT-IR korrelationsspektroskopi, exempel på samverkan mellan cellulosa och hemicellulosa studerad med denna teknik. Poster vid Svenska Kemistsamfundets Analysdagar, Uppsala 14-17 maj 1999.

Åkerholm, M. & L. Salmén. 2001. Kolhydratsamverkan studerad med dynamisk FTIR-spektroskopi. Ekmandagarna, Stockholm

Åkerholm, M. & L. Salmén. 2001. Interactions between wood polymers studied by Dynamic FT-IR spectroscopy. 11th ISWPC, Nice, France, 1: 17-20.

Publications
Hinterstoisser, B. & L. Salmén. 1999. Two-dimensional step-scan FTIR: A tool to unravel the OH-valency range of cellulose. Cellulose 6: 251-263.

Åkerholm, M. & L. Salmén. 2001. Interactions between wood polymers studied by dynamic FT-IR spectroscopy. Polymer 42: 963-969.

Hinterstoisser, B. & L. Salmén. 2000. Application of dynamic 2D-FTIR to cellulose. Vibrational Spectroscopy 22: 111-118.

Hinterstoisser, B., Åkerholm, M. & Salmén, L. 2001. Effect of fiber orientation in dynamic FTIR study on native cellulose. Carbohyd. Res. 334: 27-37.

Åkerholm, M. & Salmén, L. 2002. Dynamic FT-IR spectroscopy for carbohydrate analysis of wood pulps.  Journal of Pulp and Paper Science 28:245-249.

Åkerholm, M. and Salmén, L: "The oriented structure of lignin and its viscoelastic properties studied by static and dynamic FT-IR Spectroscopy". Accepted for publication in Holzforschung.

 

 

Project 9

Publications
Hildén L., Daniel G., Johansson G. (2003) Use of a fluorescence labelled,
carbohydrate-binding module from Phanerochaete chrysosporium Cel7D for
studying wood cell wall ultrastructure. Biotechnology Letters 25: 553-558.

Hildén L. and Johansson G (2004) "Recent developments on cellulase and
carbohydrate binding modules with cellulose affinity". Review.
Biotechnology Letters 26: 1683-1693.

Hilden L, Väljamäe P, Johansson G. 2005. Surface character of pulp fibres studied using endoglucanases. Journal of Biotechnology, Volume 4 (118): 386-397

 

Project 10

Conference presentations
Terashima, N., J. Hafrén, U. Westermark, Y. Xie, K. Fukushima, C. Lapierre & D. L. VanderHart. 1999. Proposed 3D structural model for soft wood lignin. International Symposium on Wood and Pulping Chemistry, Japan , June 1999.

Mellerowicz, E. J., K. Blomqvist, V. Bourgin, H. Brumer, M. Christiernin, S. Denman, S. Djerbi, M. Eklund, Å. Kallas, J. Lehtiö, S. Raza, S. Regan, U. Rudsander, B. Sundberg & T. Teeri 2000. Cell wall enzyme discovery using high throughput sequencing and in-depth expression analysis in poplar wood forming tissues. Proceedings of the symposium "Friendly and Emerging Technologies for a Sustainable Pulp and Paper Industry". Taiwan Research Institut, Taipei,Taiwan. 25-27 April, 2000.

Bourquin, V., Ewa Mellerowicz, Stuart Denman, Malin Eklund, Tuula T. Terri and Björn Sundberg.  Immunolocalization of xyloglucan endotransglycosylase (XET16A) from Poplar wood-forming tissues.  Graduate student meeting in Götenborg 10-14 Aug. 2000.

Madoka Gray-Mitsumune, Ewa J. Mellerowicz, Kristina Blomqvist, Sharon Regan, Veronica Bourquin, Janne Lehtiö, Tuula T. Teeri, Björn Sundberg. Expansins involved in the wood fiber formation in poplar.  Plant Cell Walls - Gordon conference, Meriden, New Hampshire, Aug 20-25, 2000

Gray-Mitsumune, M., Ewa J. Mellerowicz, Kristina Blomqvist, Anne Gouget, Jarmo Schrader, Sharon Regan, Janne Lehtiö, Tuula T. Teeri, Björn Sundberg.  Characterization of expansin genes specifically expressed during secondary xylem development in hybrid aspen. COST Action E20 Uppsala Workshop 26-28 April 2001.

Mellerowicz, E., Henrik Aspeborg, Kristina Blomqvist, Harry Brumer, Veronica Bourquin, Stuart Denman, Madoka Gray-Mitsumune, Anne Gouget, Sharon Regan, Björn Sundberg, Tuula T. Teeri. Xylem cell formation in hybrid aspen: Enzymes involved in the cell wall formation and restructuring. COST Action E20 Uppsala Workshop 26-28 April 2001.

Bourquin, V., Ewa Mellerowicz, Harry Brumer, Stuart Denman, Malin Eklund, Tuula T Terri and Björn Sundberg. Localization by indirect immunofluorescence of the xyloglucan endotransglycosylase (XET16A) in the cambial region tissues of hybrid aspen. COST Action E20 Uppsala Workshop 26-28 April 2001.

Mellerowicz, E., Henrik Aspeborg, Kristina Blomqvist, Veronica Bourquin, Stuart Denman, Madoka Gray-Mitsumune, Sharon Regan, Björn Sundberg, Tuula T. Teeri.  Enzymes involved in the cell wall formation and restructuring in the wood forming tissues of hybrid aspen. 4th Carbohydrate Bioengineering Meeting, June 10. - 13. 2001 at the Royal Institute of Technology, Stockholm, Sweden, http://www.print.kth.se/cbn/

Aspeborg, H., Soraya Djerbi, Magnus Hertzberg, Jarmo Schrader, Björn Sundberg, Ewa Mellerowicz, Peter Nilsson, Tuula Teeri and Kristina Blomqvist.  Transcript profiling of genes involved in carbohydrate metabolism in the wood forming tissue from Populus tremula L.X tremuloides Michx. 4th Carbohydrate Bioengineering Meeting, June 10. -13. 2001 at the Royal Institute of Technology, Stockholm, Sweden, http://www.print.kth.se/cbn/

Shchukarev, A.V., B. Sundberg, E. Mellerowicz and P. Persson.  XPS Study of Living Tree. 9th European Conference on Applications of Surface and Interface Analysis, 30 September - 5 October 2001, Avignon, France. http://www.enscp.jussieu.fr/ECASIA/  (proceedings paper accepted)

S. Andersson1, M. Hertzberg1, Y. Ohmiya1, J. Hellgren1, E Mellerowicz1, P. Nilsson2, B. Sundberg1 Gene Expression During Tension Wood Formation. 9th International Cell Wall Meeting, 2-7 Sept 2001 Toulouse, France - poster.

Ewa Mellerowicz1, Hisashi Abe1, Henrik Aspeborg2, Kristina Blomqvist2, Harry Brumer2, Veronica Bourquin1, Stuart Denman2, Anne Gouget, Madoka Gray-Mitsumune1, Marie-Amélie Péronne1, Tuula T. Teeri2, Björn Sundberg1.  Xylem Cell Formation In Hybrid Aspen: Enzymes Involved In The Cellulose-Hemicellulose Network Formation And Restructuring. 9th International Cell Wall Meeting, 2-7 Sept 2001 Toulouse, France- talk.

Veronica Bourquin , Ewa Mellerowicz1, Hisashi Abe1, Harry Brumer2 Stuart Denman2, Malin Eklund2, Tuula T Teeri2 and Björn Sundberg1. Localization of the xyloglucan endotransglycosylase (XET16A) in the cambial region of hybrid aspen. COST E20 MC-meeting and Workshop on "Methods to Localise and Characterise Cell Wall Components" held in Grenoble, France  25 - 27 October 2001 -talk

S. Denman1, K. Blomqvist1, H. Aspeborg1, M. Hertzberg2, Å. Kallas1, U. Rudsander1, E. Mellerowicz2, A. Ohlsson1, T. Berglund1, P. Nilsson1, B. Sundberg 2, J. Lundeberg1 & T.T. Teeri1. Enzymes for Innovative Fibre Modification.  Twenty seventh annual Lorne conference on protein structure and function. 10-14 February- 2002, Lorne, Australia - poster

Ewa Mellerowicz, Hisashi Abe, Henrik Aspeborg Kristina Blomqvist , Veronica Bourquin , Harry Brumer, Stuart Denman Malin Eklund, Madoka Gray-Mitsumune, Janne Lehtiö , Nobu Nishikubo, Björn Sundberg, Tuula T Terri. Expansins and xyloglucan endotransglycosylases of the cambial region tissues. WURC international seminar Uppsala, April 17, 2002 - talk

Gray-Mitsumune, M1, Mellerowicz, EJ1, Abe H1, Blomqvist, K2, Schrader J1, McQueen-Mason, SJ3, Teeri TT2, Björn Sundberg1 . Overexpression of an aspen expansin gene results in alteration of growth response in transgenic aspen. Canadian Society of Plant Physiologists June 8 to 12, 2002 Calgary, Alberta - talk.

B. Sundberg et al. Functional genomics in poplar: wood cell wall biosynthesis. Plant Cell Wall Biosynthesis Meeting, 12-15 May, 2002, UCLA Lake Arrowhead Conference Center, California - talk.

Anna Siedlecka1*, Marie-Amelie Péronne2, Joanna Lesniewska3, Luc Richard4, Fabienne Michelli4, Andrei Shchukarev5, Maureen McCann6, Max Bush6, Björn Sundberg1 and Ewa Mellerowicz1. Altered expression of Pectin Methyl Esterase PME1 cases multiple changes in the aspen wood-forming tissues. COST E20 meeting "Cell Wall and Stress" held 30/5-1/06 2002 at INRA, Reims - poster.

Nobuyuki Nishikubo, , Björn Sundberg and Ewa Mellerowicz.  The expression analysis of xyloglucan endotransglycosylase/hydrolases in the cambial region of hybrid aspen and mature hypocotyl of Arabidopsis. 13th FESPP CONGRESS, September 1-6, 2002, Heraklion, Crete, Greece - talk.

Ewa Mellerowicz, Björn Sundberg, Geoff Daniel.  Cell wall biosynthesis.  WURC meeting in Piteå Nov 2002.

EJ Mellerowicz, N Nishikubo, A Siedlecka, M Gray-Mitsumune, M-A Péronne, V Bourquin, F Micheli, L Richard, S McQueen-Mason, H Brumer, TT Teeri, B Sundberg. Custom- tailored wood fibers.  Talk at the IUFRO Tree Biotechnology Meeting, Umea, June 7-12, 2003

Anna Siedlecka, Marie-Amélie Péronne, Fabienne Micheli Luc Richard  Björn Sundberg and Ewa J. Mellerowicz.  Pectin methyl esterase regulates fibre length in poplar by acting on intrusive tip growth.  Poster at the IUFRO Tree Biotechnology Meeting, Umea, June 7-12, 2003

Junko Takahashi, Emma R. Master, Tuula T. Teeri Björn Sundberg and Ewa J. Mellerowic.  Role of cellulases in the wood formation. .  Poster at the IUFRO Tree Biotechnology Meeting, Umea, June 7-12, 2003

N. Nishikubo, B. Sundberg and E. Mellerowicz.  The role of XET for wood formation. Poster at the IUFRO Tree Biotechnology Meeting, Umea, June 7-12, 2003

E Mellerowicz -Pectin methyl esterase regulates cell expansion and intrusive growth during wood development in poplar.  Talk at the Gordon Research conference: Plant Cell Walls, Meridem NH, August 2003.

EJ Mellerowicz. Towards understanding mechanisms that regulate fiber morphology in trees. WURC international seminar, Uppsala April 21, 2004.

Ewa Mellerowicz, Nobuyuki Nishikubo, Madoka Gray-Mitsumune, Anna Siedlecka, Björn Sundberg.  Cell expansion in developing wood.  Cell wall meeting in Sorrento, Aug 28-Sept 3, 2004

Junko Takahashi, Emma R. Master, Ulla Jonsson Rudsander, Elena del Campillo, Tuula T. Teeri Björn Sundberg  and Ewa J. Mellerowicz. Role of cellulases in the wood formation. Cell wall meeting in Sorrento, Aug 28-Sept 3, 2004

Publications
Mellerowicz, EJ, Baucher, M, Sundberg, B and Bojeran, W.  2001. Unraveling cell wall formation in the woody dicot stem.  Plant Mol Biol, 47: 239-274

Bourquin, V, N. Nishikubo, H. Abe, H. Brumer, S. Denman, M. Eklund, M. Christiernin, T. Teeri, B. Sundberg, & E. Mellerowicz. 2002. Xyloglucan endotransglycosylases have a function during the formation of secondary cell walls of vascular tissues. Plant Cell 14: 3073-3088.

Shchukarev, A.V., B. Sundberg, E. Mellerowicz & P. Persson. 2002. XPS Study of Living Tree. Surface and Interface Analysis, 34: 284-288

Soraya Djerbi, Henrik Aspeborg, Peter Nilsson, Björn Sundberg, Ewa Mellerowicz, Kristina Blomqvist and Tuula T. Teeri.  Identification and expression analysis of genes encoding putative cellulose synthases (CesA) in the hybrid aspen, Populus tremula (L.) x P. tremuloides (Michx.). (accepted by Cellulose April 2004).

Madoka Gray-Mitsumune, Ewa  J. Mellerowicz, Hisashi Abe, Simon McQueen-Mason, Anders Winzéll, Fredrik Sterky, Kristina Blomqvist, Jarmo Schrader, Tuula T. Teeri and Björn Sundberg. Secondary growth-specific expansin genes belong to the Subgroup A a-expansin gene family and exhibit conservation among different wood-forming species - (accepted by Plant Physiology April 2004).

Gray-Mitsumune, M, Abe, H, Sundberg, B. and Mellerowicz, EJ.  2004.Liquid-phase fluorescence in situ RT-PCR for high resolution and high throughput gene expression analysis in woody stems tissues. Plant Biology 6: 47-54.

S. Djerbi, H. Aspeborg, P. Nilsson, B. Sundberg, E. Mellerowicz, K. Blomqvist and T.T. Teeri. 2004. Identification and expression analysis of genes encoding putative cellulose synthases (CesA) in the hybrid aspen,Populus tremula (L.) x P. tremuloides (Michx.). Cellulose 11: 301-312. 

M. Gray-Mitsumune, E.  J. Mellerowicz, H. Abe, S. McQueen-Mason, A. Winzéll, F. Sterky, K. Blomqvist, J. Schrader, T.T. Teeri and B. Sundberg. 2004. Expansins abundant in secondary xylem belong to Subgroup A of the α-expansin gene family. Plant Physiology 135: 1552-1564.

Geisler-Lee J, Geisler M, Coutinho PM, Segerman B, Nishikubo N, Takahashi J, Aspeborg H, Djerbi S, Master E, Andersson-Gunnerås S, Sundberg B, Karpinski S, Teeri TT, Kleczkowski LA, Henrissat B, and Mellerowicz EJ. ( 2006). Poplar Carbohydrate-Active Enzymes (CAZymes). Gene identification and expression analyses. Plant Physiol. (in press).

Andersson-Gunnerås S, Mellerowicz EJ, Love J, Segerman B, Ohmiya Y, Coutinho PM, Nilsson P, Henrissat B, Moritz T and Sundberg B (2006). Making cellulose enriched tension wood in Populus: global analysis of transcripts and metabolites identifies biochemical and developmental regulators in secondary wall biosynthesis.  Plant J (in press).

Aspeborg H, Schrader J, Coutinho PM, Stam M, Kallas Å, Nilsson P, Denman S, Amini B, Sterky F, Master E, Sandberg G, Mellerowicz E, Sundberg B, Henrissat B, Teeri TT. 2005.  Carbohydrate-active enzymes involved in the secondary cell wall biogenesis in hybrid aspen.  
Plant Physiology 137: 983-997.


Patent applications
EJ Mellerowicz, BW Sundberg, AD Siedlecka, L Richard and F Micheli.  New transgenic plants.  Filed  in Sweden by SweTree Technologies AB under No 0301671-4, 6 June 2003
 
EJ Mellerowicz, BW Sundberg, AD Siedlecka, L Richard and F Micheli. Regulation of intrusive growth by Pectin Methyl Esterase (PME). Filed in France by Delegation Aux Entreprises under number DV 63543, 29 April, 2003


 

Project 11

Conference presentations
Larsson, T. 1999. "Structural Elements in Cellulose I" Lecture at the International Conference on Biopolymer Technology (ICBT), 29 sep - 1 Oct 1999, Universidad de Coimbra, Coimbra, Portugal.

Publications
Larsson, P.T., H-L. Hult, K. Wickholm, E. Pettersson & T. Iversen. 1999. CP/MAS 13C NMR spectroscopy applied to structure and interaction studies on cellulose I. Solid State NMR, 15: 31-40.

 

 

Project 12

Conference presentations
Fahlén, J. 2000. AFM: a tool for revealing details on the wood ultrastructure. Proc. Workshop Fibre Wall & Microfibril Angle. COST Action E20 Wood Fibre Cell Wall Structure, 11-13 May, 2000, Margi Hotel, Vouliagméni, Greece. Printed by NTUA, Athens, Greece and MC/WG of COST Action E20, p. 57.

Fahlén , J. & L. Salmén 2001. Cross sectional structure of wood during pulping viewed with AFM. ISWPC Symposium, Nice France.

Fahlén , J. & L. Salmén. 2001. Cross-sectional structure of the S2 layer in native and processed wood. Workshop.Cost Action E11 Characterization methods for fibres and paper, 10-12 May, Louvain-la-Neuve-University, Brussels, Belgium

Fahlén, J. & L. Salmén. 2001. The lamellar structure of the wood fiber wall - radial or concentric. COST action E20, Workshop 26-28 April 2001, Uppsala, Sweden.

Fahlén J. & L. Salmén. 2003. Pore size distribution in the transverse direction of the wood fibre wal. COST action E20, Workshop 4-6 September 2003, Helsinki , Finland .


Fahlén J. & L. Salmén. 2004. The AFM and the cell wall ultrastructure. The Ekmandagarna, SPCI, 3-4 February, Stockholm , Sweden

Fahlén J. 2004. Ultrastructural Differences in the Transverse Direction of the Wood Fiber Wall. 8th European Workshop On Lignocellulosics and Pulp (EWLP), 22-25 August, Riga, Latvia. (Oral presentation).

 

Publications
Fahlén J, Salmén L (2002). On the Lamellar Structure of the Tracheid Cell Wall. Plant Biology, 4(3): p. 339-345

Fahlén J, Salmén L (2003). Cross-sectional structure of the secondary wall of wood fibers as affected by processing. Journal of Material Science, 38(1): p. 119-126.

M. Åkerholm, L. Salmén. Softening of wood polymers induced  by moisture studied by dynamic FT-IR spectroscopy . J. Appl. Pol. Sci. 94 (2004) 2032-2040. 

L. Salmén. 2004. Micromechanical understanding of the cell wall structure. C. R. Biologies 327(2004) 9-10: 873-880. 

Fahlén J, Salmén L. 2005. Pore and matrix distribution in the fibre wall revealed by AFM and image analysis. Biomacromolecules 6 (2005) 1: 433-438 .

Fahlén J, Salmén L. 2005. Ultrastructural changes in the transverse direction of a holocellulose pulp revealed by enzymes, thermoporosimetry, and Atomic Force Microscopy . Holzforschung 59 (2005) 6: 589-597.

 

 

Project 13

Conference presentations
Brelid, H., Nåhem, K., A. Sundén 2001. The behaviour of Ca and Mn in spruce wood chips during kraft pulping. ISWPC Symposium, Nice France.

Publications
Brelid, H., A. Sundén and P. Olofsson. 2000. Metal removing pretreatments of softwood chips: effects on the metal ion distribution in kraft pulp. (Submitted to NPPRJ).

 


Project 14

Conference presentations
Eriksson, L. 2001. Lignin Biosynthesis and Degradation; A Theoretical Perspective.  Presented by Leif A. Eriksson at the WURC International Seminar, SLU, Uppsala, April 25 2001, and at the International Workshop on  Physical Chemistry, University of the Basque Country, San Sebastian, Spain, July 5 2001.

Publications
Wang, Y., & Leif A. Eriksson Molecular Dynamics Simulations of Lignin Monomers in Solution., Mol. Phys., (Submitted).

Durbeej, B & Leif A. Eriksson. 2003. Spin Distribution in Dehydrogenated Coniferyl Alcohol and Associated Dilignol Radicals. Short note, Holzforschung, 57(1):59-61.

Durbeej, B & Leif A. Eriksson. 2003. A Density Functional Theory Study of Coniferyl Alcohol Intermonomeric Cross Linkages in Lignin – Three-Dimensional Structures, Stabilities and the Thermodynamic Control Hypothesis. Holzforschung, 57(2): 150–164. 

X. Li and L.A. Eriksson. 2005. Molecular Dynamics Simulations of Lignin Constituents  in Aqueous Solution. Holzforschung 59, 253.

B. Durbeej and L.A. Eriksson. 2005. Photodegradation of Substituted Stilbene Compound “ What Colours Aging Paper Yellow? J. Phys. Chem. A, 109, 5677.

 

Project 15

Conference presentations
D. Fernando, J. Hafrén, J. Brändström and G. Daniel (2004): “Influence of native fibre structure on refiner mechanical pulps and final products”, 4th Fundamental Mechanical Pulps Seminar, 7-8 June, Stockholm, Sweden.

 Brändström, J., Fernando D., Hafrén J. and Daniel G. (2004): Tracheid ultrastructure of Norway spruce (Picea abies L. Karst.) wood and its influence on mechanical pulp and final paper products”, International Symposium on Wood Sciences (IAWA-IAWS), 24-29 October, Montpellier, France.

Publications
Brändström, J. 2004. Ultrastructure of compression wood fibres in fractions of a thermomechanical pulp. Nord. Pulp Paper Res. J., 19, 13-18

Brändström, J. 2004. Microfibril angle of the S1 cell wall layer of Norway spruce compression wood tracheids. IAWA J. In press.

Hafrén, J. and G. Daniel. 2003. Distribution of methyl-esterified galacturonan in chemical and mechanical pulp fibers. Journal of Wood Science 49, 361-365.

Hafrén, J. and G. Daniel. 2003. A bioassay for methylated galacturonan on pulp-fiber surfaces. Biotechnology Letters 25, 859-862.

Hafrén, J. and G. Daniel. 2004. Chemoenzymatic modifications of charge in chemithermomechanical wood pulp (submitted to Journal of Biotechnology).

Hafrén, J. 2004. Antibody-based assay for galacturonan de-esterification on wood-pulp fibers during bleaching (manuscript).

Fernando, D & G. Daniel. 2004. Micromorphological observations on spruce TMP fibre fractions with emphasis on fibre cell wall fibrillation and splitting. Nordic Pulp & Paper J., 3, 278 - 285.

Fernando, D., J. Lidén & G. Daniel. 2005. Staining techniques for determining the state and spatial distribution of extractives in birch kraft pulp.  Nordic Pulp & Paper J., 20, 383-392.


Project 19

Conference presentations
P.V. Persson, A. Fogden, J. Hafrén, G. Daniel, T. Iversen
. Bringing the wood nanostructure to light - silica casts of the fiber cell wall. Proceedings of the 12th International Symposium on Wood and Pulping Chemistry, June 2003, Madison, USA. 159-162.

Publications
Wahlberg, J., P.V. Persson, T. Olsson, E. Hedenström, T. Iversen. 2003. Structural characterization of a lipase-catalyzed copolymerization of ε-caprolactone and D,L-lactide. Biomacromolecules  4, 1068-1071.  

Persson, P.V., A. Fogden, J. Hafrén, G. Daniel, T. Iversen. 2004. Silica-cast replicas for morphology studies on spruce and birch xylem, accepted for publication in IAWA J.  (in press).

Gustavsson, M.T., P.V. Persson, T. Iversen, K. Hult, M. Martinelle. 2004. Polyester coating of cellulose fiber surfaces catalyzed by a cellulose-binding module - Candida antarctica lipase B fusion protein. Biomacromolecules 5, 106-112.

Persson, P.V., J. Hafrén, A. Fogden, G. Daniel, T. Iversen. 2004. Silica nanocasts of wood fibres: a study of cell wall accessibility and structure. Biomacromolecules 25, (in press).



Project 20

Conference presentations
A-M. Olsson and Lennart Salmén: “The softening behavior of hemicelluloses related to water”.ACS Symp ser. 864 “Hemicelluloses: Science and technology”  Eds. P. Gatenholm, M. Tenkanen, American chemical Society, Washington, (2003) p. 184-197.

A-M. Olsson and Lennart Salmén: “Mechanical properties of hemicelluloses related to water”.Preprint from EWLP aug2002, Åbo

 

 

Project 30

Conference presentations
Daniel, G., L. Filonova,  Å. Kallas, J. Lehtiö, L. Greffe, & T. Teeri.
2005. Use of carbohydrate binding modules as molecular markers for mapping wood and pulp fibres. In: Proc. International Symposium on Wood Science & Technology (IAWPS 2005), 27-30 November 2005, Yokohama, Japan. pp 384-385.

Kallas, Å, Henrissat, B., Gilbert, HJ., Teeri, TT. Identification, expression and preliminary characterization of four putative carbohydrate binding modules from Populus tremula X tremuloides. Gordon conference for cellulases and cellulosomes, Andover, NH, USA (Aug 2005).

Publications
Daniel, G., L. Filonova, Å.M. Kallas, T.T. Teeri. 2005.
Use of the cellulose-binding module CBM1HjCel7A for morphological and chemical characterization of the gelatinous cell wall layer in tension wood fibres of Populus tremula and Betula verrucosa using fluoresence and FE-SEM microscopy. Submitted to Holzforschung.

 

Project 32

Conference presentations
Henriksson G., Lawoko M., Christiernin M. and Henriksson M. (2005) “Monocomponent endoglucanases – An excellent tool in wood chemistry and pulp processing” 13th ISWFPC, Auckland, New Zeeland 16 – 19 May, 2005, 4D22. V2 pp 503 - 508.

Christiernin M., L Zhang L., Nilsson T. and Henriksson G. (2005) “Analysis of lignin isolated from spruce with secondary cell wall removed” 13th ISWFPC, Auckland, New Zeeland 16 – 19 May, 2005, Poster 12. V3 pp 73 - 80.

Christiernin M., Ohlsson A., Berglund T. and Henriksson G. (2005) “Analysis of lignin isolated from poplar cell suspension cultures” 13th ISWFPC, Auckland, New Zeeland 16 – 19 May, 2005, Poster 13. V3 pp 81 - 86

Publications
Christiernin M., Ohlsson A.B., Berglund T. and Henriksson G. 2005. Analysis of lignin isolated from primary walls of hybrid aspen cell suspension cultures indicates large differences from secondary cell wallPlant Physiology and Biochemistry 43, 777 - 785.

 

 

Project 33

Publications
Hildén L, Zhang J, Persson E, Johansson G, Brändström J. 2005. Distribution and characterisation of discolouring substances in Norway spruce (Picea abies L. Karst.) pulp wood stored under water-sprinkling. Holzforschung. In press.

 

Licentiate Examinations

Duchesne, I. 1999. Surface ultrastructure of Norway spruce kraft pulp fibres. Licentiate seminar, Sept. 1999, SLU, Uppsala.

Berglund, A. 1999. Morphological investgation of metal ions in spruce wood. Licentiate seminar, Oct. 1999, CTH, Göteborg.

Åkerholm, M. 2001. Dynamic FT-IR spectroscopy applied to studies on wood polymers. Licentiate seminar, Mar. 2001, KTH, Stockholm.

Nyholm, K. 2001. Dislocations in Wood and Pulp Fibres of Norway Spruce. Licentiate seminar, May 2001, SLU, Uppsala.

Fahlén, J. 2002. Ultrastructural arrangement of the polymers in wood fibres. Licentiate seminar, April 2002, STFI, Stockholm.

Dennis Wihlemsson. Finite element modelling of mechanical properties of geometrically characterized wood fibres. Royal Institute of Technology (KTH), Dept. of Solid Mechanics, June 2006.

 

 

Ph.D thesis

Wickholm, K.  Structural Elements in Native Celluloses. Examination: March 2001, KTH, Stockholm.

Hult E-L.  CP/MAS13C_NMR Spectroscopy Applied to Structure and Interaction Studies on Wood and Pulp fibres. Examination: April 2001, KTH, Stockholm.

Duchesne, I.  Electron Microscopic and Spectroscopic Studies on the Surface Ultrastructure of Kraft Pulp Fibres. Examination: November 2001, SLU, Uppsala.

Brändström, J.  Morphologyof Norway Spruce Tracheids with Enphasis on Cell Wall Organisation. Examination: Februari 2002, SLU, Uppsala.

Mohlin, U.  Pulp Strenght Properties - Influence of Carbohydrate Composition, Molar Mass and Crystalline Structure. Examination: Mars 2002, KTH, Stockholm.

Önnerud, H.  On the structure of native softwood and hardwood lignins. Examination: May 2002, KTH, Stockholm.

Berggren, R.  Cellulose degradation in pulp fibers studied as changes in molar mass distribution. Examination: April 2003, KTH, Stockholm.

Åkerholm, M.  Ultrastructural aspects of pulp fibres as studied by dynamic FT-IR spectroscopy. Examination: October 2003, KTH Fibre and Polymer Technology, Stockholm.

Persson, P.  Strategies for Cellulose Fiber Modification. Examination: April 2004, KTH Fibre and Polymer Technology, Stockholm.

Durbeej, B.  Quantum chemical studies of protein-bound chromophores, UV-light induced DNA damages, and lignin formation. (2004) Uppsala Universitet, Uppsala.

Hildén, L.  The Characterization of Wood and Wood Fibre Ultrastructure Using Specific Enzymes. 2004, SLU, Uppsala. 

Christiernin, M. Composition of lignin in outer cell-wall layers. Examination: June 2006. KTH

Neagu, R.C. Hygroelastic behaviour of wood-fibre based materials on the composite, fibre and ultrastructural level. Examination: October 2006. KTH.

Fernado. D. Ultrastructural characterization (morphological and topochemical) of wood pulp fibres; effects of mechanical and kraft processing. Examination: April 2007, SLU, Uppsala.

 

 

WURC Internal Reports (University/Industry)

Molin, U. 1999. Egenskaper hos massor framställda med olika kokmetoder – resultat för "WURC" massorna. Intern rapport nr 1 (limited dissemination).

Duchesne, I., C. G. van Leerdam, G. Daniel and J. Basta. 2000. Surface composition of kraft pulp fibres using XPS and FE-SEM. Internal report nr 2 (limited dissemination).

Fahlén, J., van Leerdam, K. & Basta, J. 2002. Surface chemical composition and morphology of bleached kraft pulp fibers. Internal report nr 3 (limited dissemination).

Ander, P., & Marklund, A. 2002. Dislocations and strength properties of spruce industrial pulps.  Internal report nr 4 (limited dissemination)

Anders Hedborg, Bofeng Mao, Gunilla Söderstam, 2002. Effect of recycling of the coarse rejects from the knot screens to digester. StoraEnso. Report: RCK Department: Chemical Pulp R&D. Internal report nr 5 (limited dissemination). 

Swan, B. 2003. Sammanställning och jämförelse av resultat kring kemisk sammansättning, fiberstruktur och styrkeegenskaper erhållna i doktors- och licentiatavhandlingar 2001 och 2002. Internal report nr 6 (limited dissemination). 

Åkerholm, M., B. Swan, R. Berggren, G. Daniel, J. Fahlén, T. Larsson, S. Bardage, T. Iversen, M. Lindström L. Salmén, C. Tokoh. 2003. Ultrastructural characterisation of "Pulp 2000": Results from AFM, FT-IR, NMR, SEC and TEM. Internal report nr 7 (limited dissemination). 

K. Sjöström, R. Berggren, P. Ander, G. Daniel, L. Salmén, J. Hornatowska, F. Thuvander 2005. Strength delivery; Changes in fiber properties and morphological organization during industrial processing. WURC Internal report nr 9.,45pp.

 

 

WURC Industry and university "examensarbeten"

Sjöblom, E. 1999. A comparative study between two-phase and single stage oxygen delignification using experimental design. Degree project in  Chemistry Engineering, Umeå University. (MoDo/WURC).

Östmark, C. 2000. Enzymer av Trichoderma reesi och dess påverkan på fluffmassa. Degree project in  Chemistry Engineering, Mälardalens Högskola. (Korsnäs/WURC).

Gouget, A. 2000. Characterization of expression of PttXyn10, a putative xylan hydrolase from poplar wood-forming tissues. Department of Forest Genetic and Plant Physiology, SLU, Umeå.

Kling, M. 2001. Stiffening of cellulose fibres: A comparison between crosslinking the fibre wall and lumen loading. M.Sc Luleå University Tech. (Korsnäs/WURC).

Wilhemsson, D. 2006. Finite element modeling of mechanical properties of geometrically characterized wood fibres. Master of Science thesis in Engineering Mechanics, KTH, Stockholm, Sweden.

 

WURC Industry interactions (Seminars)

Duchesne, I.; The ultrastructure of wood fibre surfaces. Presentation of WURC Project 2. at SCA Research. Jan.1999.

Hult E-L. 1999.: Fiberkemi-cellulosa och hemicellulosastruktur. Poster. Information Day STFIs Base Research.

Molin, U. 1999; The fibre strength of pulp fibres. Presentation of WURC Project 5., SCA Research Jan. 1999.

Nyholm, K., & P. Ander. 1999; Dislokationer eller noder i vedfibrer. June 16, MoDo, Örnsköldsvik, Oral presentation.

Duchesne, I.; "Fiberytors ultrastruktur - FE-SEM iakttagelser". WURC Internseminarium 26/5-1999, Bålsta.

Brändström, J. (2000) "Fiber modeller". AssiDomän Corporate R&D Piteå. Oral presentation.

Bardage, S. L.; "3D visualisering av trä- och massafibrer". WURC board meeting, 30 May 2000, Arlanda, Sweden.

Duchesne, I.; Surface composition of kraft pulp fibres using XPS and FE-SEM. April 26-27, 2000. Eka Chemicals, Bohus, Sweden.

Duchesne, I.; Preliminary XPS and FE-SEM results obtained on kraft pulp fibres. March 27, 2000. Akzo Nobel Chemicals General Science, Dept. of Microstructure Analysis, Arnhem, The Netherlands.

Duchesne, I.; Results from Project 2. The ultrastructure of wood fibre surfaces. May 2, 2000. Korsnäs, Gävle, Sweden.

Bardage, S. & Brändström, J. 2001. 3-dimensionell simulering av tracheid cellväggar.  WURC seminarium 12 februari, SCA, Sundsvall.

Daniel, G. 2001. Ultrastrukturen hos vedfiberns ytor. WURC seminarium 12 februari, SCA, Sundsvall.

Molin, U. & Teder, A. 2001. Fiberstyrka hos massafibrer. WURC seminarium 12 februari, SCA, Sundsvall.

Brelid, H. 2001. Ultrastrukturell modifiering av ved med avseende på metalljoner + sulfatkokets inverkan på metalljoner. WURC seminarium 12 februari, SCA, Sundsvall.

Nyholm, K. & Ander, P. 2001. Dislokationer och noder i vedfibrer. WURC seminarium 12 februari, SCA, Sundsvall.

Fahlén, J. 2001. Ultrastrukturella ändringar vid mekanisk bearbetning och torkning av massa. WURC seminarium 12 februari, SCA, Sundsvall.

Brändström J. (2002) Granvedcellernas ultrastruktur och dess betydelse vid massaframställningen. January 31 2002, Korsnäs, Gävle.

Brändström J (2002). Granfibrernas mikro- och ultrastruktur. February 14 2002, SCA, Sundsvall.

Brändström J. (2002)  Granfiberns uppbyggnad - variationen inom trädet och betydelsen för massaegenskaperna. February 18 2002, Kappa Kraftliner, Piteå.

 

 

 

WURC Internal Seminars

Date: 10 Mars 1998
Place: Borgvik

Molin, U-L.; Massans egenskaper. WURC Internseminarium 10/02-1998, Borgvik.

Brolin, A.; Fiberns roll i fibernätverket. WURC Internseminarium 10/02-1998, Borgvik.

Salmén, L.; Fiber och vatten – porstruktur. WURC Internseminarium 10/02-1998, Borgvik.

Peng, F.; Ved och fiberdimensioner. Sulfatmassans egenskaper – inverkan av vedråvara och process. WURC Internseminarium 10/02-1998, Borgvik.

Rehnberg, O.; Ved och fliskondition. Sulfatmassans egenskaper – inverkan av vedråvara och process. WURC Internseminarium 10/02-1998, Borgvik.

Högman, S.; Kontinuerlig kokning + O2-delignifiering. Sulfatmassans egenskaper – inverkan av vedråvara och process. WURC Internseminarium 10/02-1998, Borgvik.

Jansson, U.; Batchkokning. Sulfatmassans egenskaper – inverkan av vedråvara och process. WURC Internseminarium 10/02-1998, Borgvik.

Holm, A-S; Blekning. Sulfatmassans egenskaper – inverkan av vedråvara och process. WURC Internseminarium 10/02-1998, Borgvik.

Nilsson, T.; Vedfibers uppbyggnad. Ultrastrukturell nivå. WURC Internseminarium 10/02-1998, Borgvik.

Duchesne, I.; Fiberytor, literatursammanställning. Ultrastrukturell nivå. WURC Internseminarium 10/02-1998, Borgvik.

Iversen, T.; Cellulosastrukturer i ved och massa. Ultrastrukturell nivå. WURC Internseminarium 10/02-1998, Borgvik.

Westermark, U.; Kondensationsreaktioner under kokning. Ultrastrukturell nivå. WURC Internseminarium 10/02-1998, Borgvik.

Olm, L.; Selektiv ligninutlösning i koket. Ultrastrukturell nivå. WURC Internseminarium 10/02-1998, Borgvik.

Brelid, H.; Metaller i ved och massa, förekomst och roll. Ultrastrukturell nivå. WURC Internseminarium 10/02-1998, Borgvik.

Peng, F.; Fiberdimensioner. Fiberns morfologiska struktur. WURC Internseminarium 10/02-1998, Borgvik.

Nilsson, T.; Fiberns ultrastruktur – vägg, yta m m. Fiberns morfologiska struktur.  WURC Internseminarium 10/02-1998, Borgvik.

Laine, J.; Fiberns ytkemi – laddning. Fiberns morfologiska struktur. WURC Internseminarium 10/02-1998, Borgvik.

Salmén, L.; Vattenupptagande förmåga. Fiberns morfologiska struktur. WURC Internseminarium 10/02-1998, Borgvik.

Mohlin. U-B; Fiberskador. Fiberns morfologiska struktur. WURC Internseminarium 10/02-1998, Borgvik.

Hult, E-L; Cellulosa och hemicellulosa. Topokemi och kemisk struktur. WURC Internseminarium 10/02-1998, Borgvik.

Westermark, U.; Lignin. Topokemi och kemisk struktur. WURC Internseminarium 10/02-1998, Borgvik.

Salmén, L.; Samverkan mellan polymerer. Topokemi och kemisk struktur. WURC Internseminarium 10/02-1998, Borgvik.

Eriksson, I.; Skogen, råvaran. Var och hur i productionen borde vi kunna förbättra massans styrkepotential i papperet? WURC Internseminarium 10/02-1998, Borgvik.

Rehnberg, O.; Vedgård och renseri. Var och hur i productionen borde vi kunna förbättra massans styrkepotential i papperet? WURC Internseminarium 10/02-1998, Borgvik.

Högman, S., Jansson, U. & L. Olm; Kokeri- och O2-delignifiering. Var och hur i productionen borde vi kunna förbättra massans styrkepotential i papperet? WURC Internseminarium 10/02-1998, Borgvik.

Eriksson, I.; Sileri. Var och hur i productionen borde vi kunna förbättra massans styrkepotential i papperet? WURC Internseminarium 10/02-1998, Borgvik.

Holm, A-S; Blekning. Var och hur i productionen borde vi kunna förbättra massans styrkepotential i papperet? WURC Internseminarium 10/02-1998, Borgvik.

Salmén, L.; Torkning. Var och hur i productionen borde vi kunna förbättra massans styrkepotential i papperet? WURC Internseminarium 10/02-1998, Borgvik.

Brolin, A.; Fiberstyrka och/eller flexibilitet. Vad är väsentlig hos fibermaterialet för att erhålla styrka hos arket. WURC Internseminarium 10/02-1998, Borgvik.

Mohlin, U-B; Malning och formning. Vad är väsentlig hos fibermaterialet för att erhålla styrka hos arket. WURC Internseminarium 10/02-1998, Borgvik.

Gellerstedt, G.; Vilka kompletteringar behövs? Vad tar programmet hand om? WURC Internseminarium 10/02-1998, Borgvik.

 

 

Date: 25 May 1999
Place: Bålsta

Molin, U.; Cellulosa/hemicellulosa och styrka. Forskningsresultat. WURC Internseminarium 26/5-1999, Bålsta.

Hult, E-L; Cellulosa och hemicellulosa – mängd och struktur i olika massor. Forskningsresultat. WURC Internseminarium 26/5-1999, Bålsta.

Duchesne, I.; "Fiberytors ultrastruktur - FE-SEM iakttagelser". Forskningsresultat. WURC Internseminarium 26/5-1999, Bålsta.

Nyholm, K.; Dislokationer. Forskningsresultat. WURC Internseminarium 26/5-1999, Bålsta.

Berglund, A.; Metallfördelning. Forskningsresultat. WURC Internseminarium 26/5-1999, Bålsta.

Brändström, J.; Fiberstruktur – modeller. Forskningsresultat. WURC Internseminarium 26/5-1999, Bålsta.

Vickes, M.; Mekanisk interaktion mellan vedpolymerer. Forskningsresultat. WURC Internseminarium 26/5-1999, Bålsta.

Önnerud, H.; Lignin och hemicellulosastruktur. Forskningsresultat. WURC Internseminarium 26/5-1999, Bålsta.

Basta, J. (Eka); Fiberforksning inom Akzo. Karakterisering av massor. WURC Internseminarium 26/5-1999, Bålsta.

Sandström, P. (SCA); Brottseghet – körbarhet. Karakterisering av massor. WURC Internseminarium 26/5-1999, Bålsta.

Jansson, U. (Södra); Prediktion av massastyrka med hjälp av fibermätningar. Karakterisering av massor. WURC Internseminarium 26/5-1999, Bålsta.

Marklund, A. (MoDo); Masastyrka – fiberdimensioner. Karakterisering av massor. WURC Internseminarium 26/5-1999, Bålsta.

Högman, S. (Korsnäs); Fibermaster – fiberdeformationer. Karakterisering av massor. WURC Internseminarium 26/5-1999, Bålsta.

Thuvander, F. (Karlstad Univ.); Ny metod för bestämning av fiberns mekaniska egenskaper. Karakterisering av massor. WURC Internseminarium 26/5-1999, Bålsta.

Rehnberg, O. (AssiDomän); Homogenisering eller särbehandling av råvaror – inverkan på massaegenskaper. Egenskaper. WURC Internseminarium 26/5-1999, Bålsta.

Lif, J. (StoraEnso); Papperets fukt- och tidsberoende mekaniska egenskaper. Egenskaper. WURC Internseminarium 26/5-1999, Bålsta.

Östlund, S.(KTH-STFI); Massa och papper sedda med materialtekniska ögon. Egenskaper. WURC Internseminarium 26/5-1999, Bålsta.

 

 

Date: 15 November 2000
Place: Sigtuna

Recents WURC results:

II Projects 2, 9, 10 Cell wall ultrastructure & morphology

III Projects 4, 7, 11 Fibre chem. of wood polymers at molecular level

IV Projects 6, 6A (13) Metals in wood

V Projects 5, 8, 12 Physical properties of fibres

VI Project 3 Dislocations and structural damages

Industry - Current problems which need answers; new practical experiences which need to be considered.

AssiDomän : Sågverksflis - en massaråvara med varierande kvalitet
Eka Chemicals: Bleaching and Fibre
 
Korsnäs: Behandling av blekt barrvedsmassa med cellulaser

MoDo Paper: Inverkan av huggningsbetingelser på fiber- och massaegenskaper

SCA: Styrkeförluster vid kokning och syrgasblekning
Stora Enso: Strength Delivery

WURC Scientists - What have we learnt us so far ? Our understanding of fibres before WURC and now. (Input from all WURC project leaders and Ph.D students)

How can we best utilize results so far ? (Input from industry)

Where do we go from here ? Phase 3 ? What do we do now to best utilize the results ? (All round discussion - all WURC participants)

TEMA Modelling of fibres: a tool for understanding fibre ultrastructure

and chemical and physical properties

Fibre, ultrastructure & nanostructure modelling:

a) Whole fibre and cell wall modelling (Project 1)

b) Molecular cell wall modelling (Project 14- L. Eriksson, Bo Durbeej)

 

 

WURC International Seminars

International Seminar 1998

Date: 22 April 1998
Place:
Swedish University of Agricultural Sciences, Uppsala
         Main lecture hall

Introduction
Lennart Eriksson, STFI, Chairman, WURC

SESSION 1
Chairman: Brita Swan, WURC

Metal Ions – wood ultrastructure
Annica Berglund, Harald Brelid and Rune Simonson
Chalmers University of Technology (CTH)

Future chemical pulping processes
Ants Teder
Royal Institute of Technology (KTH)

Enzymes – tools for ultrastructural research on wood fibres
Paul Ander
Swedish University of Agricultural Sciences (SLU)


SESSION 2 (Invited speakers)
Chairman: Inger Eriksson, SCA AB

Towards a more comprehensive model for the biogenesis of wood cell walls: organization at the nanoscale level.
Rajai Atalla
USDA, Forest Products Laboratory, Madison, USA.

The variability of lignin structure and lignification patterns in wood species and annual plants.
Bernard Monties
INRA, Grignon, France.

Molecular modelling of lignocellulosic cell walls.
Lubo Jurasek
McGill University, Montreal, Canada.


SESSION 3
Report from an EU-project

The strenght of wood fibres. Associations between hemicellulose and cellulose at the molecular level.
Olle Teleman and Andreas P. Heiner, Finland; Tommy Iversen and Tomas Larsson, Sweden; Bas Leeflang, The Netherlands; Gaston Gilli, Italy; Peter Biely, Slovakia.

 

 

International Seminar 1999

Date: 21 April 1999
Place: Swedish University of Agricultural Sciences, Uppsala
            Main lecture hall

Introduction to WURC
Björn Henningsson
, Swedish University of Agricultural Sciences, SLU

SESSION 1
Chairman: Björn Henningsson, SLU

Development of WURC at the edge of the new millenium
Brita Swan
, WURC

Supramolecular structure of cellulose in spruce wood and kraft pulp
Eva-Lena Hult, Tomas Larsson and Tommy Iversen, STFI

A multidisciplinary approach to fibre wall formation – presentation of a new project
Björn Sundberg, Swedish University of Agricultural Sciences (SLU), and Tuula Teeri, Royal Institute of Technology (KTH)

 

SESSION 2 (Invited speakers)
Chairman: Inger Eriksson, SCA AB

Cellulose synthase genes and related gene products: On the road to the future design of cellulose biosynthesis in the wood cell wall
Malcolm Brown Jr., University of Texas at Austin, Austin, USA

Number and distribution of cellulose synthases, fibril to matrix ratio, and cell geometry: parameters determining plant cell wall texture
Anne Mie C. Emons, Wageningen Agricultural University, The Netherlands

Immunocytochemical studies on cell wall formation in woody plants
Keiji Takabe, Kyoto University, Kyoto, Japan

 

SESSION 3
Chairman: Geoffrey Daniel, SLU

Cost Action e20 wood fibre cell wall structure - short information
Paul Ander, Swedish University of Agricultural Sciences (SLU)

Highlights from WURC projects generated during the first two years

 

 

International Seminar 2000

Date: 12 April 2000
Place:
Swedish University of Agricultural Sciences, Uppsala
         Main lecture hall

 

SESSION 1
Chairman: Geoffrey Daniel, SLU

Fibre structure and paper properties
Ulla-Britt Mohlin,
STFI

The influence of molecular weight on mechanical properties of pulp fibres
Ulrika Molin, Helena Lennholm and Ants Teder,
KTH

Ultrastructure of spruce wood cell walls
Adya Singh
, Forest Research Institute, Rotorua, New Zealand

 

SESSION 2 (Invited speakers)
Chairman: Lars Ödberg, AssiDomän AB

Molecular directionality in cellulose and chitin microfibrils – a microscopic approach
Junji Sugiyama,
Wood Research Institute, Kyoto University, Japan

Supermolecular architecture of cellulose in some native and artificial systems
Tetsuo Kondo, Forestry and Forest Products Research Institute, Tsukuba Norin Kenkyu, Ibaraki, Japan

NMR spin-relaxation of submicroscopic structures in wood fibres
Roger Newman, Industrial Research Limited, Lower Hutt, New Zealand

 

SESSION 3
Chairman: Thomas Nilsson, SLU

COST Action E20 "Wood Fibre Cell Wall Structure" – short information
Paul Ander, SLU

Highlights from WURC projects

 

 

International Seminar 2001

Date: 25 April 2001
Place: Swedish University of Agricultural Sciences, Uppsala
           Loftet lecture hall

 

SESSION 1
Chairman: Geoffrey Daniel (SLU/WURC)

Do fibre surface properties have an influence on paper strength?
Janne Laine (STFI)

Cell wall structure of kraft pulp fibres as determined by different microscopy techniques
Isabelle Duchesne (SLU/WURC)

Ultrastructure of wood and pulp fibres
Eva-Lena Hult (STFI/WURC)

Lignin biosynthesis and degradation from a theoretical perspective
Leif Eriksson (UU/WURC)

 

SESSION 2 (Invited speakers)
Chairman: Göran Gellerstedt (KTH/WURC)

Monolignol coupling networks and downstream metabolism: Implications for sapwood and heartwood formation
Norman Lewis, Institute of Biological Chemistry, Washington State University, USA.

Proposed 3D structural model for softwood lignin in the cell wall
Noritsugu Terashima, Nagoya, Japan.

The metabolic plasticity of lignification
John Ralph, US Dairy Forage Research Center, USDA-Agricultural Research Service, Madison, USA.

 

SESSION 3
Chairman: Thomas Nilsson (SLU/WURC)

Variability of Microfibril angle in spruce
Jonas Brändström (SLU/WURC)

Inhomogeneities in the chemical structure of spruce lignin
Hans Önnerud (KTH/WURC)

Supramolecular chemistry at the cellulose fibril surfaces
Thomas Larsson (STFI/WURC)

Changes in cell wall structure during refining of pulps with different molecular weights
Ulrika Molin (KTH/WURC)

Removal and redistribution of metal ions during kraft pulping
Harald Brelid

 

 

International Seminar 2002

Date: 17 April 2002
Place: Swedish University of Agricultural Sciences, Uppsala
           Loftet lecture hall

WELCOME

Lennart Eriksson, STFI, Chairman, WURC
Geoffrey Daniel
, WURC phase 3, Director, SLU  

 

SESSION 1: Mechanical Pulps

Chairman: Hans Höglund (Mid Sweden University)

Mechanical pulp - a mixture of stiff and flexible components
Hans Höglund (Mid Sweden University)

The character of mechanical pulps  - do we know enough?
Lars Johansson (PFI, Norway)

Some new methods to characterize fines from mechanical pulps
Lars Ödberg (AssiDomän, WURC)

Scanning probe microscopy for the surface characterisation of  natural fibres 
Jouko Peltonen (Åbo Academy University, Finland)

 

SESSION 2: Microscopy techniques and cellulose

Chairman: Geoffrey Daniel (SLU/WURC)

AFM - Possibilities and limitations
Shannon Notley (Fiber Science and Communication Network (FSCN), 
Mid Sweden University)
 

Modern electron microscopy of biological specimens
Paul Walther (University of Ulm,Germany)

The fast moving field of cellulose research - A look into the future for the Forest Products Industry
Malcolm Brown (University of Texas, USA)

 

SESSION 3: WURC projects

Chairman: Lars Ödberg (AssiDomän/WURC)

Recognition of molecular directionality in crystalline beta-chitin: Hydrolysis by chitinases A and B from Serratia marcescens 2170
Eva-Lena Hult (STFI/Wood Research Institute, Kyoto University, Japan)
 

Project 1: Fibre Models
Stig Bardage (SLU/WURC)
 

Project 10: Expansins and xyloglucan endotranglycosylases of the cambial region tissues
Ewa Mellerowicz  (SLU/WURC)  

Project 12: Fibre ultrastructural and surface changes during  mechanical and chemical treatments
Jesper Fahlén  (STFI/WURC)
 

 

 

International Seminar 2003

Date: 23 April 2003
Place: Swedish University of Agricultural Sciences, Uppsala
           Loftet lecture hall

 

WELCOME

Lennart Eriksson, STFI, Chairman, WURC
Geoffrey Daniel, WURC project portfoljo 3, Director, SLU

SESSION 1: Optimising the use of forest fibres in current production 

Chairman: Geoffrey Daniel (WURC)

Measurements and models for improved fiber utilization
Sven-Olof Lundqvist (STFI, Sweden)

Strength delivery - the pulping performance gauge

Panu Tikka (HUT, Finland

Fibre characterisation using confocal microscopy
Ho Fan Jang
(Paprican, Canada)

Texture analysis - A new method for quantifying cell wall nanostructure  
Lloyd Donaldson (Forest Research, New Zealand)



SESSION 2: The potential of forest fibres in new products

Chairman: Malcolm Brown (Univ. Texas, USA)

Towards biomimicking of wood: self-assembly phenomena at cellulose surfaces
Paul Gatenholm (CTH, Sweden)

Can composite principals inspire creation of new forest fibre materials?
Lars Berglund (KTH, Sweden)

Chemo-enzymatic modification of cellulosic materials
Tuula Teeri (KTH, Sweden)



SESSION 3: WURC projects

Chairman: Lars Ödberg (WURC/SveaSkog) 

Project 9: Pulp characterisation with cellulose degradation enzymes
Lars Hildén (SLU/WURC)

Project 19: Silica-cast replica for morphology studies on wood and pulp
Per Persson (STFI/WURC)

Project 14: Molecular modelling - an alternative approach in wood ultrastructure research
Bo Durbeej (UU/WURC)





International Seminar 2004

Date: 21 April 2004
Place: Swedish University of Agricultural Sciences, Uppsala
           Loftet lecture hall

WELCOME

Lennart Eriksson, STFI-Packforsk, Chairman, WURC
Geoffrey Daniel, WURC projects, SLU



SESSION 1: From the forest to fibres & microfibrils 

Chairman: Geoffrey Daniel (WURC)

Thorbjörn Fagerström, Prorector SLU 

The main sources of variation in wood properties and fibre dimensions - the forestry perspective.
Lars Wilhemsson (SkogForsk, Sweden) 


Chemical and biological variability of lignification states.
Bernard Monties (INRA, France)


The effect of raw materials and refining on fibre and fibre-based composite properties.
Les Groom (USDA, USA) 


 Relation of the structure of wood to its mechanical properties: investigation using X-ray synchrotron.
Martin Müller (Kiel, Germany)




SESSION 2: Properties and future use of fibres

Chairman: Malcolm Brown (Univ. Texas, USA)

Fibre damages and their appearance in the mill.
Karin Sjöström (Södra Cell, Sweden)


Properties and future use of biofibres.
Roger Rowell (USDA, USA)


Cellulose nanochemistry, possibilities for the forest products industry.
Tommy Iversen (STFI-Packforsk, Sweden)




SESSION 3: WURC projects

Chairman: Lars Ödberg (WURC/SveaSkog)

A new method to compare industrial and laboratory pulp fibres in Strength Delivery (SD) investigations.
Paul Ander  (WURC/SLU, Sweden)


Towards understanding mechanisms that regulate fibre morphology in trees.
Ewa Mellerowicz (WURC/SLU, Sweden)


Morphological distribution of metal ions in softwood kraft pulp.
Harald Brelid (WURC/CTH, Sweden)


 

International Seminar 2005

Date: 21 Septembre 2005
Place: Swedish University of Agricultural Sciences, Uppsala
           Loftet lecture hall

09.00    WELCOME

Overview of WURC today: Geoffrey Daniel, Director, WURC/SLU

 

09.15 SESSION 1: Fibres for the future

Chairman: Geoffrey Daniel (WURC/SLU) 

"Södra Inside" - Future Fibre Functionality
Leif Brodén (Södra Cell, Sweden)
 

New Fibre Products at Weyerhaeuser: Three Case Studies
Mike McCaw (Weyerhaeuser, USA)
 

The Growing Potential of Molecular Fibre Breeding
Björn Sundberg (UPSC, SLU, Sweden)

11.05 BREAK + POSTERS

SESSION 2: What happens to fibres in current processes

Chairman: Lennart Salmén

WURC Strength Delivery Project
Karin Sjöström et al. (Södra Cell, Sweden)

Some Aspects on the Differences in Pulp Strength Between 
Industrial and Laboratory Kraft Pulps

Elisabet Brännvall & Michael Lindström (KTH, Sweden)

Characterization of Industrial Softwood Fibre Damage and a New Testing Method of Pulp Fluidization
Irina Rauvanto & Kaj Henricson (Tech. Univ. Villmanstrand, Finland)

Pulp Strength and Fibre Defects
Leif Robertsén (KCL, Finland)

  

13.40 SESSION 3: Modification of fibres; current & future

Chairman: Bernard Monties  (INRA, France)

Physical and Chemical Modification of fibres. Tailoring of Surfaces for Optimal Adhesion 
Lars Wågberg (KTH, Sweden

Enzymatic Modifications for Pulp and Paper Fibres 
Hanne Høst Pedersen (Novozymes, Denmark)

Bacterial Cellulose and Electronic Paper 
R. Malcolm Brown, Jr. (Univ. Texas, USA)
 

16.15 SESSION 4: Fibres in future products

Chairman: Lars Ödberg (WURC/KTH) 

The Potential of Wood Fibres as Reinforcement in Biocomposites 
Cristian Neagu (KTH /STFI-Packforsk/WURC, Sweden)

Fibre Dislocations - From Forest to Paper Products 
Nasko Terziev (WURC/SLU, Sweden)

The future of WURC
Lennart Eriksson (STFI-Packforsk), Chairman (WURC)

 

 


Postal address:
P.O. Box 7008
SE-750 07 Uppsala
SWEDEN
Visiting address:
Vallvägen 9A
Tel:
+46 18-67 24 80
Fax:
+46 18-67 34 89
E-mail:
WURC@trv.slu.se