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Applied Biochemistry and Microbiology

, Volume 36, Issue 3, pp 245–249 | Cite as

Changes in the structural composition of hardwood kraft pulp during bleaching

  • G. P. Aleksandrova
  • S. A. Medvedeva
  • A. P. Sinitsyn
  • O. N. Okunev
Article

Abstract

The possibility of using xylanase preparations for hydrolyzing hemicelluloses in a non-bleached kraft pulp in order to facilitate its bleaching was studied. The effects of enzymatic preparations of fungal and bacterial origins were examined, and the optimal conditions for xylanase activity were determined. UV spectroscopy demonstrated that the treatment of kraft pulp with enzymatic preparations containing xylanase facilitated the subsequent removal of lignin and increased the brightness by 5%. The effect of enzymatic treatment was retained in the case of peroxide bleaching. The enzymatic preparations studied are promising for the development of chlorine-free pulp bleaching technologies.

Keywords

Lignin Apply Biochemistry Enzymatic Preparation Enzymatic Treatment Xylanase Activity 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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References

  1. 1.
    Joyce, T. W., Abstract of Papers,Int. Tech. Conf. PapFor-92, St. Petersburg, 1992, pp. 269–277.Google Scholar
  2. 2.
    Harazono, K., Kondo, R., and Sakai, K., Abstract of Papers,Proc. of 9th Int. Symp. on Wood and Pulping Chem., Montreal, 1997, pp. G4-1–G4-4.Google Scholar
  3. 3.
    Medvedeva, S.A., Aleksandrova, G.P., and Babkin, V.A.,Khim. Interes. Ust. Razv., 1996, nos. 5–6, pp. 313–320.Google Scholar
  4. 4.
    Pake, M.G., Bourbonnais, R., Reid, J., and Archibald, F.S., Abstract of Papers,Proc. of 9th Int. Symp. on Wood and Pulping Chem., Montreal, 1997, pp. PL1-1–PL1-4.Google Scholar
  5. 5.
    Aleksandrova, G.P., Medvedeva, S.A., Petrov, A.N., and Babkin, V.A.,Prikl. Biokhim. Mikrobiol., 1998, vol. 34, no. 3, pp. 270–275.Google Scholar
  6. 6.
    Viikari, L., Kantelinen, A., Sundquist, J., and Linko, M.,FEMS Microbiol. Rev., 1994. vol. 13. pp. 335–350.CrossRefGoogle Scholar
  7. 7.
    Aleksandrova, G.P., Medvedeva, S.A., Petrenev, V.A., Babkin, V.A., Sinitsyn, A.P., and Okunev, A.N., Abstract of Papers,IV Mezhdunarodnaya nauchno-tekhnicheskaya konferentsiya PapFor-96 (IV Int. Tech. Conf. PapFor-96), St. Petersburg, 1996, p. 22.Google Scholar
  8. 8.
    Metody eksperimental ’noi mikologii (Methods in Experimental Mycology), Bilai, V.I., Ed., Kiev: Naukova Dumka, 1982.Google Scholar
  9. 9.
    Sinitsyn, A.P., Nadzhemi, V., and Klesov, A.A.,Khim. Drev., 1983, no. 5, pp. 60–71.Google Scholar
  10. 10.
    Obolenskaya, A.V., El’nitskaya, Z.P., and Leonovich, A.A.,Laboratornye raboty po khimii drevesiny i tsellyulozy (Laboratory Studies on Wood and Cellulose Chemistry), Moscow: Ekologiya, 1991.Google Scholar
  11. 11.
    Tenkanen, M., Hausalo, T., and Siika-aho, M., Abstract of Papers,Proc. of 9th Int. Symp. on Wood and Pulping Chem., Montreal, 1997, pp. 189–194.Google Scholar
  12. 12.
    Aleksandrova, G.P., Medvedeva, S.A., Medvedeva, E.N., Babkin, V.A., Rybal’chenko, N.A., Stupina, E.S., Sergeev, A.D., Petrenev, V.A., Sinitsyn, A.P., Popova, N.N., Okunev, O.N., and Solov’eva, I.V, RF Patent no. 2118675,Byull. Izobret., 1998, no. 25. p. 279.Google Scholar
  13. 13.
    Chudakov, N.I.,Khim. Drev., 1978, no. 2, pp. 4–13.Google Scholar
  14. 14.
    Aleksandrova, G.P., Vokin, A.I., Medvedeva, S.A., Babkin, V.A., and Zakazov, A.N.,Prikl. Biokhim. Mikrobiol, 1999, vol. 35, no. 1, pp. 63–67.Google Scholar
  15. 15.
    Suurnakki, A., Kantelinen, A., Buchert, I, and Viikari, L., Abstract of Papers,1994 Int. Pulp Bleaching Conf, Vancouver, TAPPI, 1994, pp. 111–113.Google Scholar
  16. 16.
    Petrenev, VA., Sergeev, A.D., Trifonov, G.A., and Ryzhov,Yu.Y.,Tsellyul, Bum., Karton, 1995, nos. 11–12, pp. 15–16.Google Scholar

Copyright information

© MAIK “Nauka/Interperiodica” 2000

Authors and Affiliations

  • G. P. Aleksandrova
    • 1
  • S. A. Medvedeva
    • 1
  • A. P. Sinitsyn
    • 2
  • O. N. Okunev
    • 3
  1. 1.Institute of Organic Chemistry, Siberian DivisionRussian Academy of SciencesIrkutskRussia
  2. 2.Moscow State UniversityMoscowRussia
  3. 3.Skrjabin Institute of Biochemistry and Physiology of MicroorganismsRussian Academy of SciencesPushchino, Moscow oblastRussia

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