Screening and Identification of an Independent-glutamic Acid Strain Producing Poly (?-glutamic acid)
- VernacularTitle:一株不需谷氨酸的产聚?-谷氨酸菌株的筛选与鉴定
- Author:
Qing-Shan SHI
;
Cheng-Bin LI
;
Chun-Hua WANG
;
You-Sheng OUYANG
;
Yi-Ben CHEN
;
- Publication Type:Journal Article
- Keywords:
Poly(?-glutamic acid) ,Screening,Identification,Bacillus subtilis
- From:
Microbiology
1992;0(02):-
- CountryChina
- Language:Chinese
-
Abstract:
17 strains of bacterium that produced a large amount of ?-PGA when it was grown aerobically in a culture medium containing ammonium salt and sugar as sources of nitrogen and carbon respectively,were isolated from bean products.With the following identifications of colony morphology,physiological and biochemistry experiments,and genetics,the strain PGA-O-7 was classified as a Bacillus subtilis.The PGA production 2.8 (mg/mL) was obtained when it was grown in a medium containing 3% ammonium sulfate and 4% glucose at 30℃ for 72h with sharking.
