两种不同营养类型水库鲢、鳙肌肉营养成分的比较

摘要

Muscles components of Hypophthalmichthys molitrix and Aristichthys mobilis in Jinshahe Reservoir and Taoyuanhe Reservoir were analyzed and compared by the national standard (GB) test method according to FAO and WHO evaluation criteria. The results showed that crude protein (P <0.05) and crude ash(P>0.05) contents in Jinshahe Reservoir were higher than those in Taoyuanhe Reservoir. The crude fat content of A. Mobilis in Jinshahe Reservoir was significantly higher than that in Taoyuanhe Reservoir (P < 0.05). Amino acid composition of H. Molitrix and A. Mobilis in two reservoirs were identical in category hut different in content. The contents of total amino acids and flavor amino acid of H. Molitrix in Jinshahe Reservoir were significantly higher than that in Taoyuanhe Reservoir(P <0. 05) ,and not significant among other amino acids. EAAI of H. Molitrix and A. Mobilis in Jinshahe Reservior were both higher than that in Taoyuanhe Reservior. By evaluation of these indicators, we know that muscle quality of H. Molitrix and A. Mobilis in Jinshahe Reservoir is both better than that in Taoyuanhe Reservoir.%实验采用国标(GB)的检测方法,依据联合国粮农组织(FAO)和世界卫生组织(WHO)的评价标准,对不同营养类型的金沙河水库和桃园河水库的鲢、鳙肌肉营养成分进行了分析比较.结果表明,金沙河水库鲢、鳙的粗蛋白(P<0.05)含量显著高于桃园河水库,金沙河水库鳙的粗脂肪含量显著高于桃园河水库(P<0.05).两座水库鲢、鳙的氨基酸种类组成相同,但金沙河水库鲢的氨基酸总量和鲜味氨基酸含量显著高于桃园河水库(P<0.05),而其余氨基酸含量的差异不显著.金沙河水库鲢、鳙的必需氨基酸指数(EAAI)均大于桃园河水库.综合这些指标,认为金沙河水库鲢、鳙鱼肌肉品质高于桃园河水库.