Title:
METHOD AND ENZYMATIC PREPARATION FOR TREATMENT OF CELLULOSE PULPS
Document Type and Number:
WIPO Patent Application WO/1993/011296
Kind Code:
A1
Abstract:
The present invention concerns a method for enzymatic treatment of lignocellulosic materials, in particular cellulose pulps. According to a method of the present kind, the material is contacted with an enzyme preparation having an essential glucuronidase activity in order to remove metal ions from the pulp, to change the surface charge thereof and to render the material more suitable for enzymatic treatment.
Inventors:
BUCHERT JOHANNA (FI)
SIIKA-AHO MATTI (FI)
RAETTOE MARJAANA (FI)
VIIKARI LIISA (FI)
BAILEY MICHAEL (FI)
SIIKA-AHO MATTI (FI)
RAETTOE MARJAANA (FI)
VIIKARI LIISA (FI)
BAILEY MICHAEL (FI)
Application Number:
PCT/FI1992/000332
Publication Date:
June 10, 1993
Filing Date:
December 07, 1992
Export Citation:
Assignee:
VALTION TEKNILLINEN (FI)
International Classes:
C12S3/08; C12N9/24; D21C5/00; D21C9/10; (IPC1-7): C12S3/08; D21C9/10
Other References:
Dialog Information Services, File 240, 433162, Paperchem No: 58-13162, ISHIHARA, M. et al.: "Alpha-(1-2)-Glucuronidase in the Enzymatic Saccharification of Hardwood Xylan. (1). Screening of Alpha-Glucuronidase Producing Fungi", J. Japan Wood Res. Soc., 34, No. 1: 58-64 (1988).
Dialog Information Services, File 240, 408554, Paperchem No: 57-08554, PULS, J. et al.: "Alpha-1,2-Glucuronidase in the Hydrolysis of Hemicellulose", Int. Conf. Biotechnol. Pulp & Paper Ind. (Stockholm) 3rd: 93-95 (June 16-19, 1986).
Dialog Information Services, File 240, 513482, Paperchem No: 62-13482, POUTANEN, K. et al.: "Accessory Enzymes Involved in the Hydrolysis of Xylans", ACS Symp. Ser. No. 460, Chap. 33: 426-436 (April 1991).
Dialog Information Services, File 240, 481137, Paperchem No: 61-01137, POUTANEN, K. et al.: "Xylanolytic Enzyme System of Trichoderma Reesei", Plant Cell Wall Polymers Biogenesis & Biodegradation (ACS Symp. Ser. No. 399, Lewis & Paice, ed.)/Symp. 125th ACS Mtg., Chap. 46: 630-640, (Toronto, June 5-11, 1988, 1989).
Dialog Information Services, File 240, 408554, Paperchem No: 57-08554, PULS, J. et al.: "Alpha-1,2-Glucuronidase in the Hydrolysis of Hemicellulose", Int. Conf. Biotechnol. Pulp & Paper Ind. (Stockholm) 3rd: 93-95 (June 16-19, 1986).
Dialog Information Services, File 240, 513482, Paperchem No: 62-13482, POUTANEN, K. et al.: "Accessory Enzymes Involved in the Hydrolysis of Xylans", ACS Symp. Ser. No. 460, Chap. 33: 426-436 (April 1991).
Dialog Information Services, File 240, 481137, Paperchem No: 61-01137, POUTANEN, K. et al.: "Xylanolytic Enzyme System of Trichoderma Reesei", Plant Cell Wall Polymers Biogenesis & Biodegradation (ACS Symp. Ser. No. 399, Lewis & Paice, ed.)/Symp. 125th ACS Mtg., Chap. 46: 630-640, (Toronto, June 5-11, 1988, 1989).
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