Production of high γ-aminobutyric acid (GABA) sour kimchi using lactic acid bacteria isolated from Mukeunjee kimchi

Seung Yong Cho, Min Jung Park, Ki Myong Kim, Jee Hoon Ryu, Hyun Jin Park

Research output: Contribution to journalArticle

19 Citations (Scopus)

Abstract

A sour kimchi product with an elevated amount of γ-aminobutyric acid (GABA) was produced using starter lactic acid bacteria (LAB) for mukeunjee kimchi fermentation. The starter LAB were screened and isolated from the commercial mukeunjee kimchi product that showed the highest GABA content and was identified as Lactobacillus buchneri. The maximum GABA production of L. buchneri in MRS media was 5.83 mg/mL at pH 4.2 and the addition of 3% NaCl did not significantly (p>0.05) changed GABA production of L. buchneri. The amount of GABA in L. buchneri-inoculated sour kimchi was 61.65 mg/100 g, which represented about 8 times higher than the L. buchneri uninoculated kimchi (control kimchi). A sensory evaluation test of L. buchneri-inoculated sour kimchi and control kimchi showed that the L. buchneri inoculation may produce more sour kimchi than control kimchi, but there was no difference in the general acceptance between the 2 kimchi products (p>0.05).

Original languageEnglish
Pages (from-to)403-408
Number of pages6
JournalFood Science and Biotechnology
Volume20
Issue number2
DOIs
Publication statusPublished - 2011

Keywords

  • Lactic acid bacteria
  • Lactobacillus buchneri
  • Sour kimchi
  • γ-aminobutyric acid

ASJC Scopus subject areas

  • Biotechnology
  • Food Science
  • Applied Microbiology and Biotechnology

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