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제주도산 아열대성 어류 20종의 지방산조성 특징

Fatty Acid Composition of 20 Subtropical Fish Species from Jeju Island

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주제분류수산학

초록

Lipid levels and fatty acid compositions of 20 species of subtropical fish caught off the coast of Jeju Island, Korea weredetermined. The fish were categorized according to total lipid (TL) content as follows; lean fish (TL=1.19±0.32%,n=10 species), low-fat fish (TL=3.02±0.44%, n=6 species) and medium-fat fish (TL=6.87±1.23%, n=4 species). Theprominent fatty acids were saturated fatty acids (SFAs), at 16:0 and 18:0 monounsaturated fatty acids (MUFAs), at18:1n-9 and 16:1n-7, and polyunsaturated fatty acids (PUFAs), at 22:6n-3, 20:5n-3 and/or 20:4n-6. Across all species,the percentages of PUFAs and SFAs were 38.0±7.89% and 34.3±3.08%, respectively, with no significant differencebetween both groups (P<0.05), but showed higher proportions than that of MUFA group (27.8±7.23%) (P<0.05). Theproportion of n-3 PUFAs was 27.1±8.68% across all fish species, similar to levels in other fishes from Korea. Theseresults suggest that subtropical fish from Jeju Island are a good source of n-3 PUFAs for humans.

Abstract

Lipid levels and fatty acid compositions of 20 species of subtropical fish caught off the coast of Jeju Island, Korea weredetermined. The fish were categorized according to total lipid (TL) content as follows; lean fish (TL=1.19±0.32%,n=10 species), low-fat fish (TL=3.02±0.44%, n=6 species) and medium-fat fish (TL=6.87±1.23%, n=4 species). Theprominent fatty acids were saturated fatty acids (SFAs), at 16:0 and 18:0 monounsaturated fatty acids (MUFAs), at18:1n-9 and 16:1n-7, and polyunsaturated fatty acids (PUFAs), at 22:6n-3, 20:5n-3 and/or 20:4n-6. Across all species,the percentages of PUFAs and SFAs were 38.0±7.89% and 34.3±3.08%, respectively, with no significant differencebetween both groups (P<0.05), but showed higher proportions than that of MUFA group (27.8±7.23%) (P<0.05). Theproportion of n-3 PUFAs was 27.1±8.68% across all fish species, similar to levels in other fishes from Korea. Theseresults suggest that subtropical fish from Jeju Island are a good source of n-3 PUFAs for humans.

참고문헌 (47)

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