南海珍珠贝肉的营养成分分析与评价

EVALUATION ON NUTRITION COMPONENTS OF PEARL SHELL MEAT

摘要:

对南海 4种不同珍珠贝肉进行营养成分分析 ,然后与近江牡蛎和翡翠贻贝比较 ,进行营养评价。结果表明 ,珍珠贝肉的蛋白为 78.9%～ 83.64%,平均 81.36%,且蛋白质中氨基酸评分为 81～ 94 ,限制性氨基酸为甲硫氨酸和胱氨酸 ,脂肪含量为 2 .68%～ 6.31%,平均为 4 .4 1%,其中C2 0∶5(EPA)与C2 0∶6 之和的平均含量为 33.7%;矿物质含量丰富 ,尤其是Ca、P、Zn ;维生素的含量一般。珍珠贝肉与近江牡蛎和翡翠贻贝相比 ,营养价值高于翡翠贻贝某些营养成分的价值超过近江牡蛎 ,是开发保健食品的优质天然原料 更多还原

关键词:珍珠贝肉 营养成分 南海 营养评价 保健食品

Abstract:

The nutritional components of four kinds of shell meat from different species of pearl shell in South China Sea were studied and then compared with those of Ostrea rivularis and Mytilus edulis for evaluation in nutrition .The results indicated that crude protein contents in four samples were of 78 .97 %～ 83 .64 %, 81 .38 % in average , and the score of amino acids in protein ranged from 81 to 94 , in which MET and CYS were limited amino acids .Crude fat of the samples was of 2 .68 %～ 6 . 31 %,4 .41 % in average .The average total of C20∶5(EPA)and C22∶6(DHA)in fat was 33 .70 %. Minerals in the samples were rich , particularly in Ca , P and Zn contents .As to vitamin contents in the samples , they were in general quantity .therefore , the nutritional value of pearl shell meat highly exceeded that of Mytilus edulis , but some of nutrients were superior to those of Ostrea rivularis .In conclusion , pearl shell meat can be considered to be good natural sources for healthy food production .

Key words:Pearl shell meat ,Nutrient ,South China Sea