Relationship between 3-methyl-2,4-nonanedione concentration and intensity of light-induced off-odor in soy bean oil

Takashi Sano, Maiko Iwahashi, Jun Imagi, Toshiro Sato, Toshiyuki Yamashita, Eiichiro Fukusaki, Takeshi Bamba

    Research output: Contribution to journalComment/debatepeer-review

    2 Citations (Scopus)

    Abstract

    A beany and green off-odor is developed in soy bean oil (SBO) under light-induced oxidative conditions. 3-Methyl-2,4-nonanedione (3-MND) was inferred as the compound responsible for the off-odor. In this study, we designed a simple quantification method for 3-MND in SBO, and evaluated the relationship between the 3-MND concentration and the intensity of the off-odor. 3-MND was analyzed by GC/MS with a thermal desorption unit system. By our method, the 3-MND concentration was found to increase with storage days and the SBO content under light exposure, and there was a high correlation between the measured 3-MND concentration and the intensity of the light-induced off-odor in SBO (R = 0.9586).

    Original languageEnglish
    Pages (from-to)447-450
    Number of pages4
    JournalJournal of oleo science
    Volume65
    Issue number5
    DOIs
    Publication statusPublished - May 1 2016

    All Science Journal Classification (ASJC) codes

    • General Chemistry
    • General Chemical Engineering

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