闽产李果实氨基酸组成及其营养分析

Amino Acid Composition and Nutrition Alaysis of Plum Fruits in Fujian Province

摘要:

为了弄清闽产李(Prunus salicina)果实的氨基酸含量、组成及营养价值, 采用氨基酸自动分析仪对李果实的各种氨基酸含量进行了检测和比较分析。结果表明, 李果实含有18种蛋白质氨基酸和3种非蛋白质氨基酸。‘田黄’李的牛磺酸含量与蛋白质氨基酸含量均最高, 分别为26.54 mg (100 g)^-1和496.14 mg (100 g)^-1;‘皇后’李的鸟氨酸、药用氨基酸、酸味氨基酸含量以及特殊功效蛋白质氨基酸的比例均最高, 分别为0.36 mg (100 g)^-1、364.67 mg (100 g)^-1、298.28 mg (100 g)^-1和73.45%;早熟‘胭脂’李的γ-氨基丁酸含量最高, 为7.98 mg (100 g)^-1;‘大胭脂’李的支链氨基酸含量最高, 为46.77 mg (100 g)^-1。李果实中的氨基酸种类齐全, 含量存在一定的差异, 具有很大的开发利用价值。

Abstract:

In order to understand the nutrition value of plum (Prunus salicina) fruits from Fujian, the contents and composition of amino acids were determined by amino acid analyzer. The results showed that there were 18 protein amino acids and 3 non-protein amino acids in plum fruits. Taurine and protein amino acid contents in ‘Tianhuang’ plum fruits were the highest, accounting for 26.54 mg (100 g)^-1 and 496.14 mg (100 g)^-1, respectively. The contents of ornithine, medicinal amino acid, sour amino acid in ‘American Plums Queen’ were the highest, accounting for 0.36 mg (100 g)^-1, 364.67 mg (100 g)^-1, and 298.28 mg (100 g)^-1, respectively. The proportion of protein amino acid with special efficiency in ‘American Plums Queen’ was the highest for 73.45%. The γ-aminobutyric acid content was the highest in ‘Early Rounge’ plum fruits for 7.98 mg (100 g)^-1. The branched chain amino acid content in ‘Big Rounge’ was the highest for 46.77 mg (100 g)^-1. Therefore, the plum fruits contain all the amino acids, and the contents of amino acids are different. So plum fruits have great value in use.