短乳杆菌的代谢活动。pH值、葡萄糖和2,3-丁二醇的影响。

Metabolic activities of Lactobacillus brevis. Effect of pH, glucose and butane-2,3-diol.

作者信息

Hieke E, Vollbrecht D

出版信息

Z Lebensm Unters Forsch. 1980 Jul;171(1):38-40. doi: 10.1007/BF01044416.

Abstract

The effect of pH on the metabolic activities of Lactobacillus brevis was studied. Significant changes in the patterns of volatile components were found at pH 6. Butan-2-ol was formed; the concentration of propan-1-ol was increased by 38,5% at pH 6, 62% at pH 4.5, and 30% at pH 3.0. The effect of glucose and butane-2,3-diol on the production of volatile components was examined. It was shown that propan-1-ol was formed exclusively from glucose, whereas ethyl acetate, butan-2-ol and other unknown substances were formed from butane-2,3-diol. The course of ethyl acetate formation from butane-2,3-diol is discussed.

摘要

研究了pH对短乳杆菌代谢活性的影响。在pH 6时发现挥发性成分模式有显著变化。形成了2-丁醇；在pH 6时，1-丙醇浓度增加了38.5%，在pH 4.5时增加了62%，在pH 3.0时增加了30%。研究了葡萄糖和2,3-丁二醇对挥发性成分产生的影响。结果表明，1-丙醇仅由葡萄糖形成，而乙酸乙酯、2-丁醇和其他未知物质由2,3-丁二醇形成。讨论了由2,3-丁二醇形成乙酸乙酯的过程。