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Research article2007Peer reviewedOpen access

Proteins in Norway spruce thermomechanical pulp

Hafren, J


Two methods of cytochemical staining using Coomassie dye and Cu+-bicinchoninic acid, respectively, showed that there are proteins in thermomechanical pulp (TMP) of Norway spruce. Protein isolated from TMP was analyzed for amino acid composition. There was about twice the amount of acidic amino acid material compared with basic amino acids, and the presence of glucosamine indicated that the isolated polypeptides also contained glycoproteins. The presence of proteins in ray cells and fiber tracheids in TMP adds to the chemical heterogeneity of the structurally complex high-yield pulp

Published in

Journal of Wood Science
2007, Volume: 53, number: 2, pages: 143-146

      SLU Authors

    • Hafrén, Jonas

      • Department of Forest Products, Swedish University of Agricultural Sciences

    UKÄ Subject classification

    Forest Science

    Publication identifier


    Permanent link to this page (URI)