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利用常规方法对珍珠龙胆石斑鱼的含肉率和肌肉营养成分进行了的分析,并对其营养价值进行了综合评价,旨在评价珍珠龙胆石斑鱼的营养价值,为该鱼的营养学研究及其配合饲料的研制提供基础数据和理论依据。结果表明:珍珠龙胆石斑鱼的含肉率为74.43%,肌肉中水分含量75.55%,粗蛋白的含量为19.95%,粗脂肪的含量为2.29%,粗灰分的含量为1.24%。肌肉中检测出17种氨基酸(未测色氨酸),总含量为肌肉的17.14%,其中7种人体必需氨基酸的总量为6.71%,占氨基酸总量的39.17%,必需氨基酸组成符合FAO/WHO标准。必需氨基酸指数为77.21,4种鲜味氨基酸总含量为6.96%。多不饱和脂肪酸含量占肌肉脂肪酸总量的30.95%,其中EPA和DHA的含量分别为7.01%和12.39%。珍珠龙胆石斑鱼肌肉中矿物元素种类丰富,5种常量元素(钾、钙、钠、镁、磷)和5种微量元素(铁、锰、铜、锌、硒)均有检出。本研究表明,珍珠龙胆石斑鱼是1种具有较高的食用价值和营养价值的优良海水养殖品种。
The conventional method was used to analyze the meat content and muscle nutrition of the gentian grouper and to evaluate the nutritional value of the gentian grouper in order to evaluate the nutritional value of the gentian grouper Research and preparation of compound feed to provide the basic data and theoretical basis. The results showed that the content of meat was 74.43%, muscle moisture content 75.55%, crude protein content 19.95%, crude fat content 2.29% and crude ash content 1.24%. Seventeen kinds of amino acids were detected in muscle (total tryptophan), the total content was 17.14% of muscle. Among them, the total amount of essential amino acids in seven kinds of human body was 6.71%, accounting for 39.17% of total amino acids. The essential amino acid composition was in accordance with FAO / WHO standards. Essential amino acid index 77.21, 4 kinds of umami amino acid total content of 6.96%. Polyunsaturated fatty acids accounted for 30.95% of total muscle fatty acids, of which EPA and DHA were 7.01% and 12.39%, respectively. There are many kinds of mineral elements in the muscle of the genus Pearl gecko. Five kinds of major elements (potassium, calcium, sodium, magnesium and phosphorus) and five kinds of trace elements (iron, manganese, copper, zinc and selenium) were detected. This study shows that the pearl gentian grouper is a kind of excellent marine food with high nutritional value and aquaculture species.