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KMID : 0665420070220050603
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Korean Journal of Food Culture
2007 Volume.22 No. 5 p.603 ~ p.608
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Establishment of Winterizing Conditions and Analysis of Component Composition of Winterizing By-product in Corn Oil
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Kim Duk-Sook
Lee Keun-Bo
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Abstract
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Optimal winterizing condition of com oil was cooling temperature of bleached oil from 105°C to 40°C. Then, filtering it after keeping 1~2°C by lowering the temperature gradually with treating perlite of 0.3%(w/w) amount about bleached oil and stirring. We could measure that triglyceride(TG) that extracted from lipid components from spent perlite(SP) obtained through filtration after winterizing by SACC method is major causing materials of clouding in com oil. The result of separating TG fraction by agentation TLC was that it classified into 4 kinds -U3, SU2, S2U, S3 type and the most were U3 type. From this, it’s easy to identify cause of clouding in com oil is TG fraction and most of them form wax materials that can observed. The results were they kept clear appearance at 0°C generally during 39.6 to 96.5 hours, especially the result of A sample that had the lowest temperature condition while they have some difference by condition of treating temperature.
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KEYWORD
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corn oil, winterizing, spent perlite, triglyceride, cold test
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