不同产地野生长柄扁桃仁氨基酸组成及营养价值评价

采集主产区陕西省和内蒙古自治区11 个地区的长柄扁桃仁为实验材料，采用氨基酸自动分析仪测定其氨基酸组成，并进行了营养价值评价。结果表明，不同产地长柄扁桃仁总氨基酸含量在21.74～32.35 mg/g之间，平均为26.78 mg/g；必需氨基酸占总氨基酸比例范围在24.86%～28.22%之间，第一限制氨基酸为蛋氨酸，氨基酸比值系数分平均值为69.13；以氨基酸总量、必需氨基酸含量等指标，将11 个产地长柄扁桃仁氨基酸聚类分为4 类，其中呼和浩特市小井沟生态园长柄扁桃仁蛋白含量最高，品质最好；长柄扁桃仁中味觉氨基酸和药用氨基酸含量丰富，开发利用潜质较大。

Amino Acid Composition and Nutritional Quality Evaluation of Wild Amygdalus pedunculatus Pall. Kernels from Different Growing Regions

The amino acid composition and nutritional value of kernels of wild Amygdalus pedunculatus Pall. from 11
growing regions of Shaanxi and Inner Mongolia were analyzed using an automatic amino acid analyzer (model A300).
The results showed that the contents of total amino acids ranged from 21.74–32.35 mg/g with an average of 26.78 mg/g
in Amygdalus pedunculatus Pall. The proportion of essential amino acids to total amino acids ranged from 24.86% to
28.22%. The first limiting amino acid was Met and the score of ratio coefficient of amino acid (SRCAA) was averaged
at 69.13. The geographic origins were divided into 4 categories using the multivariate statistical method based on the
contents of total amino acids and essential amino acids. Among these geographic origins, Amygdalus pedunculatus Pall.
kernels from Xiaojinggou, Hohhot had the highest protein content and the best protein quality. Amygdalus pedunculatus
kernels contained plentiful amounts of taste-active amino acids and therapeutic amino acids, thereby having huge
potential for development and utilization.