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KMID : 1160620080130040292
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Preventive Nutrition and Food Science
2008 Volume.13 No. 4 p.292 ~ p.298
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The Volatile Composition of Kiyomi Peel Oil (Citrus unshiu Marcov×C. sinensis Osbeck) Cultivated in Korea
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Song Hee-Sun
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Abstract
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The volatile composition of Kiyomi peel oil cultivated in Korea was studied by using gas chromatography and gas chromatography-mass spectrometry. The peel oil from the Kiyomi fruit was prepared by using a cold-pressing extraction method. Among the 65 components quantified in Kiyomi oil, 25 terpene hydrocarbons and 40 oxygenated compounds were identified, with peak weight percentages measuring 94.5% and 4.9%, respectively. Limonene was the predominant compound (87.5%), followed by myrcene (2.4%), sabinene (0.9%), α-pinene (0.8%), β-sinensal (0.8%), (Z)-β-farnesene (0.7%), neryl acetate (0.6%), valencene (0.5%), α-farnesene (0.5%), and α-sinensal (0.5%). A unique characteristic of the volatile profile of the Kiyomi oil was the proportion of aldehydes (2.7%), which resulted from the relative abundance of α- and β-sinensal. Another unique characteristic of the Korean Kiyomi oil was its relative abundance of β-sinensal, (Z)-β-farnesene, neryl acetate, valencene, α-sinensal and nootkatone. Valencene and α- and β-sinensal were regarded as the influential components of Korean Kiyomi peel oil.
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KEYWORD
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Kiyomi oil, Citrus unshiuC. sinensis, volatile composition, limonene, sinensal, nootkatone
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