食品工业科技2013，Vol.34Issue(5)：100-104,5.
提取条件对草鱼鱼油特性的影响及其脂肪酸组成分析
Effect of extraction conditions on oil qulity and fatty acids composition of fish oil extracted from Ctenopharyngodon idellus
摘要
Abstract
The optimal extraction conditions and their effect on oil quality and fatty acid composition of fish oil extracted from the liver and fat( 1:1 )of Ctenopharyngodon idellus by using diluted alkaline hydrolysis method was investigated.The results indicated that the extraction ratio,iodic value,acid value,peroxide value and soap stock content were significantly affected by extraction conditions.The optimal extraction conditions determined by extraction ratio,iodic value,acid value,peroxide value and saponified matter content were that the volume ratio of the minced liver and fat of Ctenopharyngodon idellus and water was 1:1 ,the immersion time in water bath at 45℃ was 5min,the pH of the sample solution was adjusted to 10.0 with NaOH solution(1:1,W/V),and the sample solution was precipitated in 10mL 4% NaCl solution for 5min at 60℃, then the fish oil was obtained after centrifugation.The yield of fish oil extracted from Ctenopharyngodon idellus by the optimal extraction conditions was 84.81% ±0.56%.The results of the analysis of the prepared fish oil showed that it comprised of 22 kinds of fatty acid,i.e.l6:0,18:In-9,20:5n-3(DHA)and 22:6n-3(EPA) ,and saturated fatty acids accounted for about 30%, which stearic acid was maximum for 18.5% .unsaturated fatty acids accounted for about 60% , which oleic acid was maximum for 18.6% ,and EPA accounted for 0.7% ,DHA accounted for 0.5%.关键词
草鱼/稀碱水解法/脂肪酸Key words
Ctenopharyngodon idellus/diluted alkaline hydrolysis method/fatty acid分类
轻工纺织引用本文复制引用
孙炳新,苏阳,郝婷婷,祈岩,冯叙桥..提取条件对草鱼鱼油特性的影响及其脂肪酸组成分析[J].食品工业科技,2013,34(5):100-104,5.基金项目
渤海大学人才引进基金项目(BHU20120301) （BHU20120301）
辽宁省科技厅重点项目(2008205001). （2008205001）
