Baranova I P, Egorov N S, Grushina V A
Prikl Biokhim Mikrobiol. 1977 Sep-Oct;13(5):709-13.
The pH effect on the nisine biosynthesis during the cultivation of Streptococcus lactis was studied at pH 5,8 6,7 and 7,2. The pH maintenance at the specified level did not stimulate the growth of Str. lactis, did not increase the total yield of nisine and did not produce a significant effect on the level or cellular nisine. This indicates an important physiological difference between the culture-nisine producer described by Hirsh and our culture Str. lactis, str. Moscow University.
在pH值为5.8、6.7和7.2的条件下，研究了pH值对乳酸链球菌培养过程中乳酸链球菌素生物合成的影响。将pH值维持在特定水平并不能刺激乳酸链球菌的生长，不会提高乳酸链球菌素的总产量，也不会对细胞内乳酸链球菌素的水平产生显著影响。这表明Hirsh描述的产乳酸链球菌素培养物与我们的乳酸链球菌菌株（莫斯科大学菌株）之间存在重要的生理差异。
