Identification of Chaetomium sp. CQ31 and Optimization of Xylanase Production in Solid State Fermentation
- VernacularTitle:毛壳霉CQ31的鉴定及固体发酵产木聚糖酶条件的优化
- Author:
Qian-Qian CONG
;
Zheng-Qiang JIANG
;
Shun-Yi LV
;
- Publication Type:Journal Article
- Keywords:
Chaetomium sp., Xylanase, Mannanase, Solid state fermentation, Corn straw
- From:
Microbiology
2008;0(08):-
- CountryChina
- Language:Chinese
-
Abstract:
A fungus CQ31 isolated from soil samples was identified as Chaetomium sp.. This strain produced effectively xylanases utilizing several liguocellulosic materials in the solid-state fermentation (SSF), and corn straw was the best carbon source. The results of single-factor-experiment showed that the corn straw as the carbon source, tryptone as the nitrogen source, initial moisture content of 80% and initial pH 9.0 were the optimal conditions for xylanase production. Under the optimized conditions, it produced xylanase which was 4897 U/g dry substrate while mannanase was 803 U/g dry substrate after 7 days of cultivation. Therefore, xylanase and mannanase production by Chaetomium sp. CQ31 in SSF possess potential for commercial applications.
