宁夏贺兰山岩羊肌肉营养成分分析

摘要

为研究贺兰山岩羊肌肉组织的营养价值,对其组成成分进行分析.结果表明:雌性岩羊与雄性岩羊肌肉组织在磷、锌、氨基酸和脂肪酸的含量方面有所不同.岩羊肌肉是蛋白质和矿物质的良好来源,尤其是钙、磷和铜.与联合国粮食农业组织(FAO)和世界卫生组织(WHO)推荐的理想蛋白质模型(EAA/TAA比约40％)相比较,岩羊肌肉蛋白质营养价值很高(其中,雄性EAA/TAA比为39.3％,雌雄EAA/TAA比为39.2％).通过计算氨基酸评分和氨基酸化学评分,岩羊肌肉蛋白中缬氨酸为限制性氨基酸,赖氨酸含量很高.此外,岩羊肌肉也是亚油酸和亚麻酸的良好来源.%The chemical composition of blue sheep (Pseudois nayaur) muscle tissues from the Helan Mountains was analyzed to quantify its nutritional content.Male and female blue sheep differed with respect to the content of phosphorus,zinc,amino acids,and fatty acids.Blue sheep meat was found to be a good source of protein and minerals,particularly calcium,phosphorus,and copper.Compared with the ideal Essential amino acids (EAA) /Total amino acids (TAA) ratio (about 40％) recommended by the Food and Agriculture Organization (FAO) /World Health Organization (WHO),the protein of blue sheep was of high quality with a high EAA/TAA ratio (39.3％ males,39.2％ females).The amino acid score and chemical score revealed that valine was the limiting amino acid and lysine content was high.Blue sheep meat was also found to be a good source of linoleic acid and linolenic acid.