Enhancing Production of Alkaline Polygalacturonate Lyase from Bacillus subtilis by Fed-Batch Fermentation
Enhancing Production of Alkaline Polygalacturonate Lyase from Bacillus subtilis by Fed-Batch Fermentation
复制标题
通过补料分批发酵提高枯草芽孢杆菌碱性聚半乳糖醛酸裂解酶的产量
DOI:
10.1371/journal.pone.0090392
复制
发表时间:
2014-03
期刊:
影响因子:
3.7
通讯作者:
Qu, Yinbo
中科院分区:
文献类型:
--
作者:
Guo, Fenfen;Li, Xuezhi;Zhao, Jian;Qu, Yinbo
Alkaline polygalacturonate lyase (PGL, EC 4.2.2.2) is an enzyme used in many industries. We developed a fed-batch fermentation process that combines the enzymatic pretreatment of the carbon source with controlling the pH of the fermentative broth to enhance the PGL production from Bacillus subtilis 7-3-3 to decrease the production cost. Maintaining the fermentation broth at pH 6.5 prior to feeding with ammonia and at pH 6.0 after feeding significantly improved PGL activity (743.5 U mL−1) compared with the control (202.5 U mL−1). The average PGL productivity reached 19.6 U mL−1 h−1 after 38 h of fermentation. The crude PGL was suitable for environmentally friendly ramie enzymatic degumming.
登录
查看更多内容
DOI:
10.1016/j.biortech.2013.07.129
发表时间:
2013-10
期刊:
Bioresour Technol
影响因子:
--
作者:
Liu, Long;Wang, Miao;Du, Guocheng;Chen, Jian
通讯作者:
Chen, Jian
影响因子:
--
作者:
Guo F;Zou M;Li X;Zhao J;Qu Y
通讯作者:
Qu Y
影响因子:
3.9
作者:
Takeshi Matsumoto;Daisuke Katsura;A. Kondo;H. Fukuda
通讯作者:
Takeshi Matsumoto;Daisuke Katsura;A. Kondo;H. Fukuda
影响因子:
3.4
作者:
M. S. Qureshi;Dongxu Zhang;G. Du;Jian Chen
通讯作者:
M. S. Qureshi;Dongxu Zhang;G. Du;Jian Chen
DOI:
--
发表时间:
1964-11
期刊:
The Journal of biological chemistry
影响因子:
--
作者:
J. McConn;D. Tsuru;K. Yasunobu
通讯作者:
J. McConn;D. Tsuru;K. Yasunobu