东极海区管角螺软体部的营养成分分析

Analysis of the nutritional composition in visceral mass of Hemifusus tuba in sea area of Dongji

对东极海区野生管角螺(Hemifusus tuba)软体部营养成分进行了分析,结果显示,管角螺软体部干品(DS)的粗蛋白含量达80.777%,蛋白质中检出含有17种氨基酸,氨基酸含量达软体部干重的51.42%。蛋白质中必需氨基酸蛋氨酸+半胱氨酸的氨基酸分最高为85.94分,呈味氨基酸含量丰富,占氨基酸总量的48.62%;EAA/TAA为40.57%、EAA/NTAA为68.72%,其必需氨基酸的构成比例基本符合FAO/WHO模式;粗脂肪中脂肪酸含量齐全,多不饱和脂肪酸比例高。分析结论为管角螺是一种高蛋白低脂肪、具有优良保健和营养价值的食品。

Nutritional composition in visceral mass of wild Hemifusus tuba was determined and evaluated.Each of the snails was high-protein and low-fat,and the pattern of essential amino acids was approximately similar to the ideal pattern of FAO/WHO.The content of protein in the viscera was 80.777%,containing 17 kinds of amino acids including 4 kinds of flavour amino acids.The content of amino acids accounted 51.42% of the dry weight.The total point of methionine and cysteine,the essential amino acids,was up to 85.94.There was plenty of flavour amino acids,which accounted 48.62% of the gross amnio acids,and the EAA/TAA was 40.57%,the EAA/NTAA was 68.72%.All kinds of fatty acids could be detected from the crude fats,and there has high level of unsaturated fatty acid in the total fatty acid.The results indicated that H.tuba is characterized by high nutrition and sanitarian compound.