Analysis and evaluation on nutritive composition in soft part of Corbicula fluminea in delta of Yellow River

In this paper,the nutritive compositions in the soft part of Corbicula fluminea in delta of Yellow River were analyzed and the results showed as follows.On the basis of dry matter of soft part,the contents of crude protein,crude lipid and ash were 53.90%,8.90% and 1.33% respectively.Seventeen kinds of amino acids were determined and composed of 438.8 mg per gram of dry matter,in which the content of essential amino acids was 164.3 mg per gram,making up 37.44 % of total amino acids.The most of AAS were more than 40.The lowest one was Cys+Met with the score of 29.71;the highest was Trp with 124.00.Among the ten kinds of main fatty acids arrayed,the content of EPA and DHA were 7.62% and 8.61%,respectively.In addition,it was rich in eleven kinds of minerals such as Ca,Na,Mg,K,Fe,and vitamins such as Va and Vb.The fatty acids of Nuttallia olivacea were also analyzed.The content of EPA and DHA were 15.23% and 6.45%,respectively.