Short communication: 3-phenyllactic acid production in milk by Pediococcus pentosaceus SK25 during laboratory fermentation process

J Dairy Sci. 2015 Feb;98(2):813-7. doi: 10.3168/jds.2014-8645. Epub 2014 Nov 28.

Abstract

3-Phenyllactic acid (PLA) is a broad-spectrum antimicrobial compound, produced by a wide range of lactic acid bacteria. A novel lactic acid bacteria strain with high PLA-producing ability, Pediococcus pentosaceus SK25, was isolated from traditional Chinese pickles. When grown in de Man, Rogosa, Sharpe broth at 30°C for 36h, this strain produced 135.6mg/L of PLA. Using this strain as starter for milk fermentation, 47.2mg/L of PLA was produced after fermentation for 12h. The PLA production was significantly improved by phenylalanine supplement, but was completely inhibited by tyrosine supplement.

Keywords: 3-phenyllactic acid; Pediococcus pentosaceus; fermentation; lactic acid bacteria.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Animals
  • Anti-Infective Agents / metabolism
  • Female
  • Fermentation
  • Lactates / antagonists & inhibitors
  • Lactates / metabolism*
  • Milk / chemistry*
  • Milk / metabolism
  • Milk / microbiology
  • Pediococcus / chemistry
  • Pediococcus / drug effects
  • Pediococcus / metabolism*
  • Phenylalanine / metabolism
  • Sequence Analysis, DNA / veterinary
  • Tyrosine / metabolism

Substances

  • Anti-Infective Agents
  • Lactates
  • 3-phenyllactic acid
  • Tyrosine
  • Phenylalanine