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KMID : 0380619860180020153
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Korean Journal of Food Science and Technology
1986 Volume.18 No. 2 p.153 ~ p.157
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Changes in Lipid Components of Gae - bul , Urechis unicinctus , During Hot - air Drying
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이응호/Lee, Eung Ho
오광수/안창범/이태헌/정영훈/Oh, Kwang Soo/Ahn, Chang Bum/Lee, Tae Hun/Chung, Young Hoon
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Abstract
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Changes in lipid components of Gae-bul, Urechis unicincha, during hot-air drying (40℃, 7 hrs) were studied. Raw sample contained 1.3% total lipid (TL) which consisted of 35.1% neutral lipid (NL), 18.0% glycolipid (GL) and 46.9% phospholipid (PL), and dried sample contained 5.3% TL which consisted of 51.8% NL, 20.5% GL and 27.7% PL. There were about 40% decrease in PL content and a slight increase in NL content during drying. The NL of raw sample mainly consists of triglyceride (TG, 39.8%), free sterol (FS, 39.6%), free fatty acid (FFA, 12.2%), and also identified diglyceride (DG), monoglyceride and esterified sterol and hydrocarbon in less quantity. The percent of TG and FS decreased, while that of FFA and DG increased during drying. And main components in the PL were phosphatidyl choline (PC, 45.6%), phosphatidyl ethanolamine (PE, 34.8%), and followed by phosphatidyl serine (PS) and an unknown substance. In the components of PL, PE, PS and PC decreased slightly in order during drying. And major fatty acids of raw and dried samples were generally 16:0, 18:1, 18:3, and 20:5. The content of the polyenoic acid such as 20:5 decreased, while the saturated acid increased slightly during drying.
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