Optimum conditions for the formation of ammonia as a precursor of tetramethylpyrazine by Lactococcus lactis ssp. lactis biovar. diacetilactis FCl

Kyoung Heon Kim, Hyong J00 Lee

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

To investigate the optimum conditions for the production of ammonia as a precursor of tetramethylpyrazine flavor compound from arginine by Lactococcus lactis ssp. lactis biovar. diacetilactis FCl, fermentation factors such as initial pH of culture media, fermentation temperature, concentration of arginine-HCI, and sugars were examined. The optimum conditions were initial pH 5.5 of the culture media, fermentation temperature of 34°C, 6% (w/v) of arginine-HCI, and 1% (w/v) of galactose as a carbon source. Under the optimum fermentation conditions, 40 mmole/l of ammonia was produced after 40 h.

Original languageEnglish
Pages (from-to)281-284
Number of pages4
JournalJournal of microbiology and biotechnology
Volume1
Issue number4
Publication statusPublished - 1991
Externally publishedYes

Keywords

  • Ammonia
  • L. lactis ssp. lactis
  • Microbial flavor
  • Tetramethylpyrazine

ASJC Scopus subject areas

  • Biotechnology
  • Applied Microbiology and Biotechnology

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