Production of a cellulase-free xylanase from agricultural waste materials by a thermotolerant Streptomyces sp.

被引：18
|
作者：
Techapun, C
Sinsuwongwat, S
Poosaran, N
Watanabe, M
Sasaki, K [1 ]
机构：
[1] Hiroshima Kokusai Gakuin Univ, Hiroshima 7390321, Japan
[2] Chiang Mai Univ, Fac Agroind, Dept Biotechnol, Chiangmai 50100, Thailand
来源：
BIOTECHNOLOGY LETTERS | 2001年 / 23卷 / 20期
关键词：
agricultural wastes; Streptomyces sp; thermotolerance; xylanase;
D O I：
10.1023/A:1012448229555
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：
1444 microorganisms were isolated from soil samples from the northern Thai and screened at 55 degreesC by using basal medium supplemented with 1% carboxymethyl cellulose as a sole carbon source. One isolate, Streptomyces Ab106, had a high activity of a cellulase-free xylanase also without mannanase activity. The maximum cellulase-free xylanase activities of 3.5, 3.3, 3.1 and 2.7 IU were after growth of the organism with 1% (w/v) corn hull, corncob, bagasse and oat spelt xylan, respectively, at 55 degreesC for 6 days, respectively. The activity was more than 5 times higher than that at 35 degreesC.
引用
收藏
页码：1685 / 1689
页数：5
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