食品科学 ›› 2011, Vol. 32 ›› Issue (15): 239-244.doi: 10.7506/spkx1002-6630-201115053

• 营养卫生 • 上一篇    下一篇

不同产地芡实氨基酸组成分析与营养价值评价

陈 蓉,吴启南*,沈 蓓   

  1. 南京中医药大学药学院
  • 出版日期:2011-08-15 发布日期:2011-07-26
  • 基金资助:
    国家药典委员会项目(YD115);“十二五”国家科技支撑计划项目(2011BAI04B06)

Amino Acid Composition and Nutritional Evaluation of Semen Euryales from Different Regions

CHEN Rong,WU Qi-nan*,SHEN Bei   

  1. (College of Pharmacy, Nanjing University of Chinese Medicine, Nanjing 210046, China)
  • Online:2011-08-15 Published:2011-07-26

摘要: 以15个产地芡实为原料,采用氨基酸自动分析仪检测,对其进行组成分析和营养评价。芡实中总氨基酸平均值为103.33mg/g,游离氨基酸为0.98mg/g。人体必需氨基酸种类齐全,且比例均衡,接近WHO/FAO 标准模式,第一限制氨基酸为赖氨酸,比值系数分(SRC)为66.98。Glu、Leu是芡实氨基酸的主成分,产地差异明显,15个产地芡实分为5类,且就氨基酸而言,苏芡的营养价值并不优于刺芡。

关键词: 芡实, 氨基酸组成, 营养评价

Abstract: The amino acid composition and nutritional evaluation of Semen Euryales harvested from 15 regions were analyzed using an automatic amino acid analyzer. The results showed the average content of total amino acids in 15 samples of Semen Euryales investigated was 103.33 mg/g, and of free amino acids 0.98 mg/g. All of these samples contained all kinds of essential amino acids in a balanced proportion, which was close to the recommended level by WHO/FAO. Among the essential amino acids found in Semen Euryales, the first limited amino acid was Lys. In addition, Glu and Leu were the principal amino acids. However, 15 different geographic origins differed obviously in the contents of Glu and Leu and could therefore be grouped into 5 categories. Further, the nutritional value of southern Euryale ferox grown in the Taihu Lake region of Jiangsu Province, China was not superior to northern Euryale ferox grown in Hongzehu Lake region of the same province in terms of the amino acid composition.

Key words: Semen Euryales, amino acid composition, nutritional evaluation

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