Intracellular pH determination for the study of acid tolerance of lactic acid bacteria

Hiromu Kudo, Yasuko Sasaki

研究成果: Chapter査読

5 被引用数 (Scopus)

抄録

It is important to assess acid tolerance in lactic acid bacteria, particularly for probiotics, although it involves multiple mechanisms. Measuring the difference between intracellular and extracellular pH (ΔpH) using the fluorescent probe CFDA-SE is particularly effective for such assessments because it gives direct information on the level of tolerance in the extracellular acidic pH range from 7 to 2.5. It also enables acid adaptation to be induced and observed by slowly introducing HCl into the medium and decreasing the extracellular pH. The difference of acid tolerance between anaerobic and aerobic conditions in lactic acid bacteria can also be evaluated by measuring ΔpH.

本文言語English
ホスト出版物のタイトルMethods in Molecular Biology
出版社Humana Press Inc.
ページ33-41
ページ数9
DOI
出版ステータスPublished - 2019

出版物シリーズ

名前Methods in Molecular Biology
1887
ISSN(印刷版)1064-3745

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