一株发酵纤维素产丁酸菌及其代谢动力学特性

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Abstract

A novel anaerobic strain, which could digest cellulose during butyric acid production, was isolated from an enrichment culture of cow dung, pig manure, corn soil and rotten wood. The strain was a bacillus with a length of 7.1~9.1 μm and a diameter of about 1.2 μm. It belonged to Clostridium butyricum and named C. Butyricum DCB. Strain DCB had a specific growth rate of 0.6536h^-1 in cellobiose medium at 35℃. In addition to this, the generation time, degradation rate and butyric acid production rate of Strain DCB were 1.06h, 0.1g/(L·h) and 0.06g/(L·h), respectively. In cellulose medium at 35℃, the highest butyric acid convertion ratio was 0.23g/g.

Key words： cellulose butyric acid Clostridium butyricum conversion ration metabolic kinetics

Received: 15 June 2015

PACS:	X172
	X382

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	Articles by authors
	CHI Xue
	LI Jian-zheng
	AI Bin-ling

Cite this article:

CHI Xue,LI Jian-zheng,AI Bin-ling. Butyric production and metabolic kinetics of a novel cellulose degrading strain[J]. CHINA ENVIRONMENTAL SCIENCECE, 2016, 36(1): 232-237.

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http://manu36.magtech.com.cn/Jweb_zghjkx/EN/ OR http://manu36.magtech.com.cn/Jweb_zghjkx/EN/Y2016/V36/I1/232

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