企鹅珍珠贝全脏器的营养成分分析与评价

对企鹅珍珠贝全脏器的营养成分进行了分析和评价,主要对其一般营养成分、氨基酸组成、脂肪酸组成及其无机质含量进行了检测和营养学评价。结果表明:企鹅珍珠贝肉的蛋白质含量为81.1%(干基),蛋白质组成氨基酸总量为13.0%,必需氨基酸种类齐全,第一限制氨基酸是缬氨酸,氨基酸价为84.3;富含Glu、Asp和Gly等呈味氨基酸;游离氨基酸中牛磺酸的含量高达722mg/100g,占游离氨基酸总量的47.2%;脂肪含量较低,且以多不饱和脂肪酸为主,其EPA和DHA的含量分别为12.61%和30.28%;无机质含量丰富,尤其是微量元素Zn(435mg/kg)和Se(0.68mg/kg)。因此,企鹅珍珠贝是具有独特鲜味和较高营养价值的优质海产品。

Analysis and Evaluation on Nutrients of Whole Viscera from Pteria penguin

Nutritional components of the whole viscera from Pteria penguin were analyzed and evaluated. General nutrients, amino acid compositions, fatty acid compositions and mineral contents were investigated. The results showed that the crude protein level in dry basis is 81.1% and the total content of the amino acids from protein is 13.0%. All kinds of essential amino acids are found in Pteria penguin. The first restricted amino acid is valine and the score of amino acid is 85.3. In addition, it is very rich in tasty amino acids such as glutamic acid, aspartic acid and lysine. The content of taurine is 722 mg/100 g, which accounts for 47.2% of the total free amino acids. The crude fat level is low and mostly made up of polyunsaturated fatty acids, in which, the contents of EPA and DHA are 12.61% and 30.28%, respectively. Mineral contents are high, especially Zn (435 mg/kg) and Se (0.68 mg/kg). All results suggested that Pteria penguin is a kind of high-quality seafood with particular flavors and high nutritional values.