东北螯虾和克氏原螯虾肌肉营养成分比较-食品科学.pdf

※分析检测 食品科学 2010, Vol. 31, No. 24 427 丁建英，康 琎，徐建荣 (常熟理工学院生物食品工程学院，江苏 常熟 215500) ：为评估东北螯虾和克氏原螯虾的营养价值，采用常规营养指标测定方法对东北螯虾和克氏原螯虾肌肉营 养成分进行测定，分析比较一般营养成份、脂肪酸和氨基酸组成。结果表明：东北螯虾的粗脂肪和粗蛋白含量略 高于克氏原螯虾；东北螯虾和克氏原螯虾均含 17 种氨基酸，氨基酸总量分别为 15.18%、17.13%，必需氨基酸含 量分别为 6.25% 、6.46% ；东北螯虾和克氏原螯虾肌肉中脂肪酸以多不饱和脂肪酸为主，EPA 和 DHA 总量分别为 7.24% 和 3.69% 。东北螯虾和克氏原螯虾均是营养价值较高的淡水虾类，从必需氨基酸组成来看，克氏原螯虾肌肉 营养高于东北螯虾，从 EPA 和 DHA 的含量来看，东北螯虾的脂肪酸营养价值高于克氏原螯虾。 ：东北螯虾；克氏原螯虾；肌肉；营养成分 Comparison of Nutritional Compositions in Muscle of Cambaroides dauricus and Procambarus clarkii DING Jian-ying ，KANG Jing ，XU Jian-rong (College of Biology and Food Science, Changshu Institute of Technology, Changshu 215500, China) Abstract ：In order to evaluate the nutritional value, nutritional components in muscle of Cambaroides dauricus and Procambarus clarkii were determined and analyzed using routine methods. The contents of general nutritional compositions, fatty acids and amino acids were compared between Cambaroides dauricus and Procambarus clarkii . Results showed that the contents of crude protein and crude fat in Cambaroides dauricus were slightly higher than those in Procambarus clarkii . Seventeen kinds of amino acids were detected in both species. The content of total amino acids was similar in two species, 15.18% for Cambaroides dauricus and 17.13% for Procambarus clarkii . The content of essential amino acids in Cambaroides dauricus was 6.25%, whereas 6.46% in Procambarus clarkii. Both species were rich in EPA and DHA. The proportions of EPA+DHA in Cambaroides dauricus and Procambarus clarkii were 7.24% and 3.69%, respectively. Therefore, Cambaroides dauricus and Procambarus clarkii are freshwater shrimps with high nutritional value. Base