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KMID : 1160620030080030219
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Preventive Nutrition and Food Science
2003 Volume.8 No. 3 p.219 ~ p.224
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Chemical and Volatile Characterization of Structured Lipid from Soybean Oil Containing Conjugated Linoleic Acid
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Lee Jeung-Hee
Lee Jong-Ho
Lee Ki-Teak
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Abstract
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Structured lipid (SL) produced from soybean oil was enriched with conjugated linoleic acid (CLA). The SL had 21.9 mol % CLA isomers incorporated into SL-soybean after the 24-h reaction. Removal of tocopherols (73～84% loss from original soybean oil) was observed in the SL. Electronic nose can discriminate the aroma of SL-soybean from that of soybean oil. Many oxidative volatiles including pentenal, octenal, 2,4-decandienal, and nonenal were found in SL-soybean. Electronic nose, which is valuable for composite aroma analysis, can provide flavor information together with GC-MS that is useful for qualitative or quantitative analysis of each odor compound in SL.
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KEYWORD
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structured lipid, conjugated linoleic acid, electronic nose, solid-phase microextraction (SPME)
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