Xylanase for biobleaching

Details Xylanase for biobleaching Xylanase for biobleaching

1991-08-13

1993-04-13

Wax, Robert A.

Chemistry: molecular biology and microbiology

Enzyme , proenzyme; compositions thereof; process for...

Hydrolase

435 691, 435 712, 4351723, 43525235, 435278, 4353201, 435886, 536 232, 935 14, 935 29, 935 56, 935 59, 935 75, C12N 926

Patent

active

052022498

ABSTRACT:
A process for the production and use of a xylanase enzyme, having a high specific activity, of use in the treatment and/or biobleaching of chemical pulps is described. The enzyme provides for a more commercially feasible process for the treatment of pulps, and lignocellulosic materials in general, which process provides improved results in delignification and brightening over conventional bleaching process, together with reduced bleaching chemical consumption and environmental impact.

REFERENCES:
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Zappe et al., "Nucleotide sequence of a Clostridium acetobutylicum P262 xylanase gene (xynB)", Nucleic Acids Research, vol. 18, No. 8 (1990).
Morosoli et al., "Purification and properties of a Xylase from Streptomyces lividans", Biochem. J. (1986) 239 587-592.
Bertrand et al., "Expression of the Xylanase Gene of Streptomyces lividans and Production of the Enzyme on National Substrates", Biotechnology Bioeng., vol. 33, pp. 791-794 (1989).
Iwasaki et al., "Molecular Cloning of a Xylanse Gene from Streptomyces SP. No. 36a and its expression in Streptomycetes", The Journal of Antibiotics, vol. 39, No. 7, p. 985 (1986).
Viikari et al., "Application of Enzymes in Bleaching"; Proceedings of the International Symposium on Wood and Pulping Chemistry; Paris (1987).
Mondu et al., "Cloning of the xylanase gene of streptomyces lividans", Gene, 49 (1986) 323-329.
Chauvet et al., "Assistance in bleaching of never-dried pulps by the use of Xylanases, consequences on pulp properties", Proceedings of the International Symposium on Wood and Pulping Chemistry, Paris (1987) p. 235.
Kluepfel, "Screening of Prokaryotes for Cellulose-and Hemicellulose-Degrading Enzymes", Methods in Enzymology, vol. 160, p. 180, (1988).
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Kendall et al.; "Cloning and expression of an extracellular-agarase gene from Streptomyces coelicolor A3(2) in Streptomyces lividans 66"; Gene, 29 (1984) pp. 315-321.
Chater et al., "Gene Cloning in Streptomyces"; Current Topics in Microbiology and Immunology, 97,69,1982.
Teather et al.; "Use of Cargo Red-Polysaccharide Interactions in Enumeration and Characterization of Cellulolytic Bacteria from Bovine Rumen"; Applied and Environmental Microbiology, Apr. 1982, pp. 777-780.
Sanger et al.; "DNA sequencing with chain-terminating inhibitors"; Proc. Natl. Acad. Sci. USA, vol. 74, No. 12, pp. 5463-5467, Dec. 1977.
Dale et al.; "A rapid Single-Stranded cloning strategy for Producing a sequential Series of Overlapping Clones for Use in DNA Sequencing:Application to Sequencing the Corn Mitochondrial 18 S rDNA"; Plasmid, 13, 31-40 (1985).
Hopwood et al.; "Genetic Manipulation of Streptomyces; A lab manual"; 1985, The John Innes Foundation, Norwich.

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