新疆农业科学2012，Vol.49Issue(1)：185-189,5.DOI:65-1097/S.20120131.2258.031
棉秆纤维素降解复合菌系的筛选及其分解特性研究
Screening of Microbial Community with Capacity of Degrading Cellulose Effectively and Its Characteristics
摘要
Abstract
[ Objective ] A group of cellulose degrading microbial flora was screened from natural environments. [ Method ] The cellulose degrading microbial flora was screened from decomposed cellulose bacteria from cow dung, soil, rumen of sheep and fermentation manure by PCS nutrient medium and continuous culture. Stability compound bacteria were screened from ox dung. [ Result ] The flora showed a stable and strong capability of degrading cellulose. CMC was respectively 11. 95 U/mL and FPA 8. 29 U/mL. - glycosidase enzyme was 11.03 U/mL. Enzyme production dynamic change in 4 - 5 d of the enzyme activity was higher, and sure fermentation period was 5 d, pH value after rising first dropped in fermentation of 4 -5 d, and pH value was relatively higher, and started to decline later, maintaining a stable but weak alkaline. [ Conclusion ] The cellulose degrading microbial flora from cow dung has the strongest degradation ability in cotton stalk.关键词
棉秆/纤维素降解/复合菌系/酶活/糖化作用Key words
cotton stalk/ cellulose degradation/microbial community/enzyme activity/saccharification分类
农业科技引用本文复制引用
吴书奇,史卉玲,席琳乔,张玲,马春晖..棉秆纤维素降解复合菌系的筛选及其分解特性研究[J].新疆农业科学,2012,49(1):185-189,5.基金项目
国家自然科学基金(3096026) （3096026）
