Comparison of proximate composition, amino acid and fatty acid profiles in wild, pond- and cage-cultured longsnout catfish (Leiocassis longirostris)
文献类型: 外文期刊
作者: Wang, Fei 1 ; Ma, Xuzhou 1 ; Wang, Wu 1 ; Liu, Jiyuan 1 ;
作者机构: 1.Shanghai Ocean Univ, Key Lab Explorat & Utilizat Aquat Genet Resources, Shanghai 201306, Peoples R China
2.Chinese Acad Fisheries Sci, E China Sea Fisheries Res Inst, Shanghai 200090, Peoples R China
关键词: Amino acid;fatty acid;fillet quality;longsnout catfish (Leiocassis longirostris);proximate composition
期刊名称:INTERNATIONAL JOURNAL OF FOOD SCIENCE AND TECHNOLOGY ( 影响因子:3.713; 五年影响因子:3.408 )
ISSN: 0950-5423
年卷期: 2012 年 47 卷 8 期
页码:
收录情况: SCI
摘要: The proximate composition, amino acid and fatty acid profiles in the fillets of wild, pond- and cage-cultured longsnout catfish (Leiocassis longirostris) were determined to identify nutritional differences. Wild fish showed higher (P < 0.05) moisture and viscerosomatic index (VSI), but lower (P < 0.05) protein, ash and gross energy than cage-cultured fish. Pond-cultured fish contained lower (P < 0.05) protein and ash contents, but higher VSI compared to cage-cultured fish. The amino acid of glycine content was higher (P < 0.05) in wild fish than in pond- and cage-cultured fish. Most of the fatty acids had a significant difference among all fish groups. The percentages of total polyunsaturated fatty acids (? PUFAs) were higher (P < 0.05) in wild and pond-cultured fish than in cage-cultured fish. Pond-cultured fish had higher (P < 0.05) ? n-3 PUFAs, eicosapentaenoic acid (EPA), docosahxaenoic acid (DHA) and ? n-3/? n-6 PUFAs ratio than wild and cage-cultured fish. The differences among the wild, pond- and cage-cultured fish may be attributed to dietary components and environmental conditions of the fish.
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