摘要
研究新疆不同玉米品种氨基酸含量的差异,评价玉米基于氨基酸构成的综合品质。利用氨基酸分析仪对22份玉米的氨基酸含量及组成进行测定,采用氨基酸评分、化学评分、必需氨基酸指数、生物价、必需氨基酸相对比值、氨基酸比值系数评分、营养指数等多种方法对玉米蛋白质进行营养评价。结果表明,22种玉米中均含有16种氨基酸,氨基酸总量为65.32~79.50 g/100g,必需氨基酸含量为24.79~30.18 g/100g,比值系数评分为59.76~66.20。M753号的必需氨基酸指数、生物价和营养指数均最高,登海8883的EAARR值最高,新玉77号的SRCAA值最高。新疆不同品种玉米氨基酸营养价值的评价为玉米新品种的选育、玉米产品的开发及综合利用提供理论基础。
This study aimed to investigate the difference in amino acid content of different corn varieties,and evaluate the comprehensive quality of corn grain based on amino acid composition.The contents and compositions of amino acids in 22 corn varieties were determined by automatic amino acid analyzer.Besides,the corn protein was assessed by the amino acid score(AAS),chemical score(CS),essential amino acid index(EAAI),biological value(BV),the ratio of essential amino acids(EAARR),score of ratio co-efficient of amino acid(SRCAA),nutritional index(NI)and other chemical methods.The results showed that there were 16 kinds of amino acids in 22 kinds of corn.The contents of total amino acids and essential amino acids ranging from 65.32 g/100g to 79.50 g/100g,and 24.79 to 30.18 g/100g.The score of ratio coefficient of amino acid(SRCAA)ranging from 59.76-66.20.M753 showed the highest EAAI,BV and NI values,while Denghai 8883 had the highest EAARR value,and Xinyu 77 had the highest SRCAA.The nutritional evaluation of amino acids in different corn cultivars would be of certain indicative value to ensure full development of corn nutritional value and optimal utilization of different cultivars.
作者
徐鑫
毛红艳
韩登旭
赵海燕
于明
XU Xin;MAO Hongyan;HAN Dengxu;ZHAO Haiyan;YU Ming(Institute of Cereal Crops,Xinjiang Academy of Agricultural Sciences,Urumqi 830091,China;Xinjiang Shouhe Agriculture Development Co.,Ltd.,Changji 830091,China)
出处
《食品与发酵工业》
CAS
CSCD
北大核心
2020年第6期244-249,共6页
Food and Fermentation Industries
基金
国家现代农业产业技术体系建设专项(ARS-02-57)
国家重点研发计划(2018YFD0100201)。
关键词
玉米
氨基酸
营养价值评价
corn
amino acids
nutritional value evaluation
作者简介
第一作者:徐鑫,硕士,助理研究员;通讯作者:韩登旭,副研究员,E-mail:49197963@qq.com;通讯作者:于明,副研究员,E-mail:2435742497@qq.com。
