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利用多种分析方法测定芝麻叶中的营养成分。用氨基酸评分(AAS)、化学评分(CS)和必需氨基酸指数(EAAI)评价氨基酸质量。结果显示,芝麻叶(DW)中水分、灰分、粗脂肪、总蛋白、总糖、还原糖、总黄酮、总多酚、Vc分别为3.06%、9.24%、7.54%、31.32%、252.61、18.62mg/g、122.80、44.75 mg/g、113.30 mg/g;5种脂肪酸中,亚麻酸的含量最高,其占总脂肪酸的45.20%;11种矿质元素中,钾的含量最高(24754.40μg/g),钙次之(24142.30μg/g),硒含量最低(0.20μg/g);芝麻叶含17种氨基酸,总量为21.44%,其中7种必需氨基酸占氨基酸总量的41.46%,9种药效氨基酸占氨基酸总量的63.81%。AAS和CS均显示其第一限制性氨基酸为含硫氨基酸(蛋氨酸和胱氨酸),第二限制性氨基酸为赖氨酸,EAA I为81.26。芝麻叶是一种营养价值较高的新资源食品,具有很好的开发利用价值。
Determination of Nutritional Components in Sesame Leaves Using Various Analytical Methods. Amino acid score (AAS), chemical score (CS), and essential amino acid index (EAAI) were used to assess the quality of the amino acids. The results showed that the contents of water, ash, crude fat, total protein, total sugar, reducing sugar, total flavonoids, total polyphenols and Vc in the sesame leaves were 3.06%, 9.24%, 7.54%, 31.32%, 252.61 and 18.62 The content of linolenic acid was the highest in all five kinds of fatty acids, which accounted for 45.20% of the total fatty acids. Among the 11 kinds of mineral elements, the content of potassium was the highest (24754.40μg / g ), Followed by calcium (24142.30μg / g), selenium content was the lowest (0.20μg / g); sesame leaves contained 17 kinds of amino acids with a total amount of 21.44%, of which 7 kinds of essential amino acids accounted for 41.46% The effective amino acids accounted for 63.81% of the total amino acids. Both AAS and CS showed that the first limiting amino acid was sulfur-containing amino acids (methionine and cystine), the second limiting amino acid was lysine, and EAA I was 81.26. Sesame leaves is a high nutritional value of new resources and food, has good development and utilization value.