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KMID : 0380619930250040345
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Korean Journal of Food Science and Technology
1993 Volume.25 No. 4 p.345 ~ p.350
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Detection of the Adulterated Sesame Oil by the Analysis of Fatty Acid Compositions and Carbon Isotope Ratio
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Abstract
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Fatty acid composition of sesame c could be distinguished from that of rapeseed oil and soybean oil by the content of linolenic acid. 1 he relative composition of each tatty acid revealed the clear difference between sesame c and other vegetable oils except corn oil. Kicebran oil was different from sesame oil in the relative composition of palmitic acid with respect to stearic acid and cottonseed oil in oleic acid to linoleic acid. δ^(13)C of corn oil was 19.40%‰, iu oleic acid and -17.11‰, in linoleic acid, while that of sesame oil was -27.60‰ in oleic acid and 27.70‰ in linoleic acid. $quot;hherefore. most adulterant could be detected by comparing the ratio of fatty acids in vegetable oils except corn oil. It could, however, be detected by comparing carbon isotope ratio in the case of corn oil.
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