The effect of gamma irradiation on oleic acid in methyl oleate and food

Seung In Hong; Jee Young Kim; Seung Yong Cho; Hyun Jin Park

doi:10.1016/j.foodchem.2009.12.008

The effect of gamma irradiation on oleic acid in methyl oleate and food

Seung In Hong, Jee Young Kim, Seung Yong Cho, Hyun Jin Park

Department of Biotechnology

Research output: Contribution to journal › Article

11 Citations (Scopus)

Abstract

The objective of this study was to investigate the effects of gamma irradiation on changes in oleic acid of methyl oleate as well as of beef and olive oil. The samples were irradiated at doses ranging from 0 to 60 kGy and the fatty acid composition was then analyzed by GC-FID and GC-MS. Gamma irradiation upon methyl oleate induced the formation of trans octadecenoic acid and stearic acid in a dose dependent fashion, while it decreased the amount of oleic acid. These findings indicate that the 9-cis structure is responsible for the formation of trans and saturated configurations. Additionally, the formation of stearic acid was facilitated by high temperature during the irradiation. Conversely, irradiation dose and temperature during irradiation had no significant effect (p > 0.05) on the amount of trans or saturated fatty acids in the beef and olive oil.

Original language	English
Pages (from-to)	93-97
Number of pages	5
Journal	Food Chemistry
Volume	121
Issue number	1
DOIs	https://doi.org/10.1016/j.foodchem.2009.12.008
Publication status	Published - 2010 Jul 1

Keywords

GC-FID
GC-MS
Oleic acid
Stearic acid
Trans octadecenoic acid

ASJC Scopus subject areas

Analytical Chemistry
Food Science

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Hong, S. I., Kim, J. Y., Cho, S. Y., & Park, H. J. (2010). The effect of gamma irradiation on oleic acid in methyl oleate and food. Food Chemistry, 121(1), 93-97. https://doi.org/10.1016/j.foodchem.2009.12.008

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abstract = "The objective of this study was to investigate the effects of gamma irradiation on changes in oleic acid of methyl oleate as well as of beef and olive oil. The samples were irradiated at doses ranging from 0 to 60 kGy and the fatty acid composition was then analyzed by GC-FID and GC-MS. Gamma irradiation upon methyl oleate induced the formation of trans octadecenoic acid and stearic acid in a dose dependent fashion, while it decreased the amount of oleic acid. These findings indicate that the 9-cis structure is responsible for the formation of trans and saturated configurations. Additionally, the formation of stearic acid was facilitated by high temperature during the irradiation. Conversely, irradiation dose and temperature during irradiation had no significant effect (p > 0.05) on the amount of trans or saturated fatty acids in the beef and olive oil.",

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