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

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 journal › Comment/debate › peer-review

1 Citation (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 language	English
Pages (from-to)	447-450
Number of pages	4
Journal	Journal of oleo science
Volume	65
Issue number	5
DOIs	https://doi.org/10.5650/jos.ess15233
Publication status	Published - May 1 2016

All Science Journal Classification (ASJC) codes

Chemistry(all)
Chemical Engineering(all)

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

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).",

author = "Takashi Sano and Maiko Iwahashi and Jun Imagi and Toshiro Sato and Toshiyuki Yamashita and Eiichiro Fukusaki and Takeshi Bamba",

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T1 - Relationship between 3-methyl-2,4-nonanedione concentration and intensity of light-induced off-odor in soy bean oil

AU - Sano, Takashi

AU - Iwahashi, Maiko

AU - Imagi, Jun

AU - Sato, Toshiro

AU - Yamashita, Toshiyuki

AU - Fukusaki, Eiichiro

AU - Bamba, Takeshi

PY - 2016/5/1

Y1 - 2016/5/1

N2 - 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).

AB - 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).

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

Abstract

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