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KMID : 0380020050200030210
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Korean Journal of Biotechnology and Bioengineering
2005 Volume.20 No. 3 p.210 ~ p.214
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Supercritical CO2 Extraction of Sesame Oil with High Content of Tocopherol
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Ju Young-Woon
Sonh Min-Ho
Lee Ju-Seok
Byun Sang-Yo
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Abstract
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The characteristics of sesame oil containing one of natural antioxidant, ’ -tocopherol’, were studied with the supercritical extraction. Although -tocopherol has a lower vitamin E value in biological systems than -tocopherol, it is a more potent antioxidant with in oils. For the research of various factors influence to the -tocopherol contents increment, we have checked roasting time and temperature, as well as pressure, temperature and flow rate of supercritical fluid. As a result, we found that the -tocopherol content was maintained constant under the condition of roasting temperature over . With the longer roasting time, -tocopherol content was increased. Except 250 bar, the -tocopherol content was maintained constant under the condition of the various pressure of supercritical fluid. But -tocopherol content was increased with lower flow rate of supercritical fluid from 1 /L to 3 /L. When the extraction performance with the supercritical fluid was compared to the conventional compressed extraction, -tocopherol content was increased up to 1.6 times.
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KEYWORD
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Sesamun indicum L., supercritical fluid, γ-tocopherol
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