Studies on Screening and Conditions of Strains Highly Producing Neutral Phytase
- VernacularTitle:中性植酸酶高产菌株的筛选及产酶条件研究
- Author:
Zhao-Xia LI
;
Ai-Min WANG
;
Xiao-Min LI
;
- Publication Type:Journal Article
- Keywords:
B.licheniformis, Phytase, High-yield strain, Enzyme activity
- From:
Microbiology
1992;0(04):-
- CountryChina
- Language:Chinese
-
Abstract:
A highly phytase-producing strain B.licheniformis LL8 was obtained by several mutagenesis of UV with B.licheniformis as starting strain.The new strain produced about two folds of phytase activity as compared with the starting strain. The production performance of the strain was stable. The cultivation conditions were optimized by single factor and orthogonal experiment. When the mutant B.licheniformis LL8 was cultivated at 55℃, initial pH 7.5 with the inoculation size of 10% for 30h in WBE medUm, the phytase activity was up to 2268.4U/mL.
