Optimization of Xylanase Production by Paecilomyces thermophila in Solid State Fermentation
- VernacularTitle:嗜热拟青霉固体发酵产木聚糖酶条件的优化
- Author:
Shao-Qing YANG
;
Qiao-Juan YAN
;
Zheng-Qiang JIANG
;
Li-Te LI
;
You-Zhi WANG
;
- Publication Type:Journal Article
- Keywords:
Paecilomyces thermaphila, Xylanase, Solid state fermentation, Wheat straw
- From:
Microbiology
1992;0(03):-
- CountryChina
- Language:Chinese
-
Abstract:
A new thermophilic fungus J18 isolated from the soil samples was identified as Paecilomyces thermophila. This strain produced effectively xylanase utilizing several lignocellulosic materials in the solid-state fermentation (SSF) , and wheat straw was the best carbon source. The results of single-factor-experiment showed that the wheat straw of particle size 0. 3 mm ~ 0.45 mm, initial moisture content of 83% , initial pH of 7. 0 and cultivation temperature of 50℃were the optimal conditions for xylanase production. Under the optimized conditions, it produced 18 580 U/g dry substrate after 8 days of cultivation. Therefore, xylanase production by Paecilomyces thermophila in SSF possess great potential for commercial applications.
