鲱鱼片、副产品及各自所产油脂的粗成分和脂质成分的季节性变化。

Seasonal changes in crude and lipid composition of herring fillets, byproducts, and respective produced oils.

作者信息

Aidos Isabel, van der Padt Albert, Luten Joop B, Boom Remko M

机构信息

Netherlands Institute for Fisheries Research (RIVO), P.O. Box 68, 1970 AB IJmuiden, The Netherlands.

出版信息

J Agric Food Chem. 2002 Jul 31;50(16):4589-99. doi: 10.1021/jf0115995.

DOI:10.1021/jf0115995

PMID:12137481

Abstract

Crude and fatty acid composition analyses were performed on fillets, byproducts, and oil originating from herring (Clupea harengus) caught off the North Sea from June 1999 to January 2001. Monthly statistical differences were found in the fat content, the range of variation being larger in fillets than in byproducts. The most consistent change observed in fillets was an increase of unsaturation from May to September reflected in a reduced percentage of monounsaturated fatty acids, whereas for byproducts and oil this trend was not so well defined. The results indicated that the lowest values of the total amount of polyunsaturated fatty acids (PUFAs) in the oil were found from January to March (approximately 14%), coinciding with the postspawning and starvation period. In contrast, the highest values were found from June to August (approximately 23%). Thus, the herring byproducts are all year an adequate raw material for fish oil production; however, during the summer they are richer in PUFAs.

摘要

对1999年6月至2001年1月在北海捕获的鲱鱼（Clupea harengus）的鱼片、副产品和鱼油进行了粗脂肪酸和脂肪酸组成分析。发现脂肪含量存在月度统计差异，鱼片的变化范围大于副产品。在鱼片中观察到的最一致变化是从5月到9月不饱和度增加，表现为单不饱和脂肪酸百分比降低，而对于副产品和鱼油，这种趋势不太明显。结果表明，鱼油中多不饱和脂肪酸（PUFA）总量的最低值出现在1月至3月（约14%），与产卵后和饥饿期一致。相比之下，最高值出现在6月至8月（约23%）。因此，鲱鱼副产品全年都是生产鱼油的合适原料；然而，在夏季，它们富含多不饱和脂肪酸。