Screening of Poly-?-lysine-producing Strain and its Fermentation Technology
- VernacularTitle:聚-?-赖氨酸高产菌株的筛选及其发酵工艺的初步研究
- Author:
Xiong CHEN
;
Ying ZHANG
;
Jin-Feng YUAN
;
Shi-Yu WANG
;
Jin-Hua WANG
;
- Publication Type:Journal Article
- Keywords:
Poly-?-lysine, Streptomyces albulus, Screening, Fermentation technology
- From:
Microbiology
1992;0(04):-
- CountryChina
- Language:Chinese
-
Abstract:
A strain with 2 g/L yield of poly-?-lysine was firstly screened from soil on an agar plate containing methylene blue and then further selected by a flask experiment. The strain was preliminarily identified as Streptomyces albulus. The experiment about medium optimization showed that glucose was the best carbon sources and yeast extract and (NH_4)_2SO_4 were the best compound nitrogen sources. The yield of ?-PL reached 3.9 g/L with optimal medium.
