Solid-State Fermentation Production of Chitosanase by <i>Streptomyces</i>with Waste Mycelia of <i>Aspergillus niger</i>  

作　　者：Xiangyang Xu Zaiwei Song Yunchao Yin Faguo Zhong Junying Song Jiachao Huang Wangli Ye Peng Wang Xiangyang Xu;Zaiwei Song;Yunchao Yin;Faguo Zhong;Junying Song;Jiachao Huang;Wangli Ye;Peng Wang(Zaozhuang Jienuo Enzyme Co., Ltd., Economic Developing Zone, Zaozhuang, Shandong Province, China)

机构地区：[1]Zaozhuang Jienuo Enzyme Co., Ltd., Economic Developing Zone, Zaozhuang, Shandong Province, China

出　　处：《Advances in Enzyme Research》2021年第1期10-18,共9页酶研究进展（英文）

摘　　要：Solid-state fermentation was carried out using mycelium powder of <em>Aspergillus niger</em> as substrate for the production of chitosanase of <em>Streptomyces</em>. Results of the experiments indicated that the optimal medium consisted of wheat bran and mycelium powder of <em>Aspergillus niger</em> with initial moisture content of 60% - 70%. The enzyme activity reached 41.33 U per gram dry medium after cultured for 5 days at 28<span style="white-space:nowrap;">&#176</span>C - 30<span style="white-space:nowrap;">&#176</span>C and an initial pH 6.5. Chitosanase was detected on the second day of incubation and had maximal activity at 5 days and decreased gradually within a 1 month period. Solid-state fermentation is maybe an economic alternative in the production.Solid-state fermentation was carried out using mycelium powder of <em>Aspergillus niger</em> as substrate for the production of chitosanase of <em>Streptomyces</em>. Results of the experiments indicated that the optimal medium consisted of wheat bran and mycelium powder of <em>Aspergillus niger</em> with initial moisture content of 60% - 70%. The enzyme activity reached 41.33 U per gram dry medium after cultured for 5 days at 28<span style="white-space:nowrap;">&#176</span>C - 30<span style="white-space:nowrap;">&#176</span>C and an initial pH 6.5. Chitosanase was detected on the second day of incubation and had maximal activity at 5 days and decreased gradually within a 1 month period. Solid-state fermentation is maybe an economic alternative in the production.

关 键 词：STREPTOMYCES Solid State Fermentation CHITOSANASE Waste Mycelia 

分 类 号：F42[经济管理—产业经济]