XYLAN-HYDROLYZING ENZYMES FROM STREPTOMYCES SPP

被引：88

作者：

JOHNSON, KG ^{[1
]}

HARRISON, BA ^{[1
]}

SCHNEIDER, H ^{[1
]}

MACKENZIE, CR ^{[1
]}

FONTANA, JD ^{[1
]}

机构：

[1] NATL RES COUNCIL CANADA, DIV BIOL SCI, OTTAWA K1A 0R6, ONTARIO, CANADA

来源：

ENZYME AND MICROBIAL TECHNOLOGY | 1988年 / 10卷 / 07期

关键词：

D O I：

10.1016/0141-0229(88)90034-8

中图分类号：

Q81 [生物工程学（生物技术）]; Q93 [微生物学];

学科分类号：

071005 ; 0836 ; 090102 ; 100705 ;

摘要：

Screening of some mesophilic speices of Streptomyces indicated that enzyme activities capable of removing O-acetyl, arabinosyl, 4-O-methylglucuronyl, and feruloyl substituents from xylan were present in culture filtrates, in addition to endo-.beta.-(1,4)-xylanases. Low constitutive levels of acetyl xylan esterase, arabinosidase, 4-O-methylglucuronidase, and ferulic acid esterase could be greatly elevated by supplementation of liquid media with starch-free wheat bran, oat spelts xylan, or sugar cane bagasse. One organism, S. olivochromogenes, produced particularly high levels of acetyl xylan esterase, ferulic acid esterase, arabinosidase, and 4-O-methylglucuronidase as well as endo-.beta.-(1,4)-xylanase. Partial purification of extracellular preparations from S. flavogriseus and S. olivochromogenes disclosed the presence of multiple forms of both anionic and cationic enzyme activities. Several of the hydrolysing activities occurred as "families": in association with endo-.beta.-(1,4)-xylanase.

引用

页码：403 / 409

页数：7

共 34 条

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