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。
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.
出处
《食品科学》
EI
CAS
CSCD
北大核心
2011年第15期239-244,共6页
Food Science
基金
国家药典委员会项目(YD115)
"十二五"国家科技支撑计划项目(2011BAI04B06)
关键词
芡实
氨基酸组成
营养评价
Semen Euryales
amino acid composition
nutritional evaluation
