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

doi:10.5650/jos.ess15233

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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

著者情報

キーワード: 3-methyl-2,4-nonanedione, GC/MS, thermal desorption unit, soy bean oil, light-induced off-odor

ジャーナルフリー早期公開

論文ID: ess15233

DOI https://doi.org/10.5650/jos.ess15233

この記事には本公開記事があります。

The final version of this article is now available: Vol. 65 (2016), No. 5 pp. 447-450

詳細

抄録

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).

責任著者(Corresponding author)

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