Growth inhibition of Acidiphilium species by organic acids contained in yeast extract

Noriaki Kishimoto, Kenji Inagaki, Tsuyoshi Sugio, Tatsuo Tano

Research output: Contribution to journalArticle

11 Citations (Scopus)

Abstract

The growth of Acidiphilium species was inhibited by 0.4% yeast extract (Difco Laboratories). The growth inhibitory substances were purified from the yeast extract and identified as dl-lactic acid and succinic acid. The minimum inhibitory concentrations (MICs) of dl-lactic and succinic acids against Acidiphilium sp. 63 were 1 and 3 mM, respectively. The contents of dl-lactic and succinic acids in the yeast extracts were estimated at 43.9 and 1.2 mg/g using high-performance liquid chromatography. Acidiphilium species that we have been studying could be classified into two groups on the bases of the difference in susceptibility to these two organic acids.

Original languageEnglish
Pages (from-to)7-10
Number of pages4
JournalJournal of Fermentation and Bioengineering
Volume70
Issue number1
DOIs
Publication statusPublished - 1990

ASJC Scopus subject areas

  • Biotechnology
  • Applied Microbiology and Biotechnology

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