Tetramethylpyrazine production by immobilized culture of Lactococcus lactis subsp. lactis biovar. diacetilactis FC1

Ji Eun Lee, Gun Jo Woo, Hyong Joo Lee

    Research output: Contribution to journalArticlepeer-review

    3 Citations (Scopus)

    Abstract

    Acetoin and ammonia, the precursors of tetramethylpyrazine (TMP) having "meaty" or "roasted" flavors, were produced by the culture of Lactococcus lactis ssp. lactis biovar. diacetilactis FC1 in free and immobilized cell systems. Cells were immobilized using k-carrageenan and then were incubated at 34°C. The TMP productivity (0.34 g/1) and the conversion ratio (9.3%) of acetoin to TMP of the immobilized cell system were higher than those (0.24 g/l, 7.0%) of the free cell system. When the beads were activated for 12 h, the productivity of acetoin and TMP increased slightly.

    Original languageEnglish
    Pages (from-to)137-141
    Number of pages5
    JournalJournal of microbiology and biotechnology
    Volume6
    Issue number2
    Publication statusPublished - 1996 Apr

    Keywords

    • Acetoin
    • Ammonia
    • Flavor
    • Immobilized cell
    • Lactococcus lactis subsp. lactis biovar. diacetilactis FCl
    • Tetramethylpyrazine

    ASJC Scopus subject areas

    • Biotechnology
    • Applied Microbiology and Biotechnology

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