外部pH值对产朊假丝酵母乙醇氧化的影响。

Effect of external pH on ethanol oxidation by Candida utilis.

作者信息

Páca J, Votruba J

机构信息

Department of Fermentation Chemistry and Bioengineering, Institute of Chemical Technology, Prague, Czechoslovakia.

出版信息

Folia Microbiol (Praha). 1991;36(5):478-84. doi: 10.1007/BF02884069.

DOI:10.1007/BF02884069

PMID:1821873

Abstract

The external pH affects both ethanol and oxygen uptake rates by nongrowing cells of Candida utilis suspended either in distilled water or in phthalate buffer. The buffering properties of organic acids control the maximum rates of exogenous respiration and ethanol uptake. The substrate limitation of ethanol uptake rate and endogenous respiration rate increase proportionally with increasing hydrogen ion concentration in the medium.

摘要

外部pH值会影响悬浮于蒸馏水或邻苯二甲酸盐缓冲液中的产朊假丝酵母非生长细胞对乙醇和氧气的摄取速率。有机酸的缓冲特性控制着外源呼吸和乙醇摄取的最大速率。乙醇摄取速率和内源呼吸速率的底物限制会随着培养基中氢离子浓度的增加而成比例增加。