Optimization of fermentation conditions for production of xylanase by a newly isolated strain, Penicillium thiersii ZH-19
文献类型: 外文期刊
作者: Cui, Fengjie 2 ; Li, Yin 1 ; Liu, Zhiqiang 3 ; Zhao, Hui 5 ; Ping, Lifeng 3 ; Ping, Liying 1 ; Yang, Yinan 7 ; Xue, Yapin 1 ;
作者机构: 1.N Dakota State Univ, Dept Plant Sci, Fargo, ND 58105 USA
2.Jiangsu Univ, Sch Food & Biotechnol, Zhenjiang 2120013, Peoples R China
3.Zhejiang Univ Technol, Inst Bioengn, Hangzhou 310014, Zhejiang, Peoples R China
4.NYU, Polytech Inst, Dept Chem & Biol Sci,Metrotech Ctr 6, Ctr Biocatalysis & Bioproc Macromol,NSF I UCRC, Brooklyn, NY 11201 USA
5.N Dakota State Univ, Dept Stat, Fargo, ND 58105 USA
6.Zhejiang Acad Agr Sci, Inst Qual & Standard Agr Prod, Hangzhou 310021, Zhejiang, Peoples R China
7.Jilin Agr Univ, Coll Hort, Changchun 130118, Peoples R China
8.Zhejiang Univ, Coll Life Sci, Hangzhou 310058, Zhejiang, Peoples R China
关键词: Identification;Penicillium thiersii ZH-19;Response surface methodology;Optimization;Xylanase
期刊名称:WORLD JOURNAL OF MICROBIOLOGY & BIOTECHNOLOGY ( 影响因子:3.312; 五年影响因子:3.58 )
ISSN: 0959-3993
年卷期: 2009 年 25 卷 4 期
页码:
收录情况: SCI
摘要: The objective of this study was to maximize production of xylanase by a newly isolated strain Penicillium thiersii ZH-19. Response surface methodology was employed to study the effects of significant factors such as pH, temperature, xylan concentration, and cultivation time, on the production of xylanase by Penicillium thiersii ZH-19. The optimal fermentation parameters for enhanced xylanase production were found to be pH 7.72, temperature 24.8A degrees C, xylan 13.2 g l(-1) and the fermentation time 125.8 h. The model predicted a xylanase activity of 75.24 U ml(-1). Verification of the optimization showed that the maximum xylanase production reached 73.50 U mL(-1) in the flask experiments and 80.23 U mL(-1) in the scale of 15-L fermenter under the optimal condition.
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