对怀山药零余子的营养成分进行了分析和评价,主要对其一般营养成分、氨酸酸组成及矿质元素含量进行了检测和营养学评价。分析结果显示,碳水化合物和蛋白质是怀山药零余子的主要成分,其中多糖占0.66%,蛋白质占4.61%,必需氨基酸丰富,占氨基酸总量的34.9%,氨基酸评分57.1,第一限制氨基酸为蛋氨酸和胱氨酸;游离氨基酸中牛磺酸的含量高达15.7mg/100g,占游离氨基酸总量的3.68%;脂肪含量为0.27%;矿质元素含量丰富,尤其是铁含量高。因此,怀山药零余子是高蛋白、低脂肪,且富含铁、铜、锌、锰等微量矿质元素的天然理想保健食品原料。 The nutritional components of the yam yam were analyzed and evaluated. The main nutritional components, the composition of the amino acid and the content of the mineral elements were evaluated and evaluated. The results showed that carbohydrates and protein were the main components of the Chinese yam yam, with polysaccharide accounting for 0.66%, protein accounting for 4.61%, essential amino acids accounting for 34.9% of total amino acids, amino acid score 57.1, the first limiting amino acid methionine and Cystine; free amino acids in the content of taurine as high as 15.7mg / 100g, accounting for 3.68% of total free amino acids; fat content of 0.27%; rich in mineral elements, especially iron content. Therefore, the yam is a high protein, low fat, and rich in iron, copper, zinc, manganese and other trace mineral elements natural ideal health food raw materials.