云南景迈茶氨基酸及矿质元素分析评价

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• 英文论文题名：Analysis Evaluation of Amino Acid and Mineral Elements for Jingmai Tea of Yunnan
• 论文作者：陈保 ; 车涛 ; 姜东华 ; 罗正刚
• 英文论文作者：CHEN Bao ; CHE Tao ; JIANG Dong-hua ; LUO Zheng-gang ; National Center for Pu'er Tea Product Quality Supervision and Inspection
• 年：2017
• 作者机构：国家普洱茶产品质量监督检验中心;
• 论文关键词：景迈茶 ; 氨基酸 ; 矿质元素 ; 营养评价
• 英文论文关键词：Jingmai tea ; amino acid ; mineral element ; nutritional evaluation
• 会议召开时间：2017-09-25
• 会议录名称：第七届云南省科协学术年会论文集——专题一：科普助力精准扶贫
• 语种：中文
• 分类号：TS272.7
• 学会代码：SSAD
• 会议名称：第七届云南省科协学术年会
• 会议地点：中国云南普洱
• 主办单位：云南省科学技术协会、中共普洱市委、普洱市人民政府
• 学会名称：云南省机械工程学会
• 页数：5
• 文件大小：61k
• 原文格式：D
• 会议级别：地方

摘要

利用氨基酸自动分析仪分析景迈茶的氨基酸含量,用氨基酸比值系数法对其进行营养评价;采用火焰原子吸收分光光度法测定景迈茶的矿质元素含量,并用营养质量指数法对其进行评价,从而了解景迈茶氨基酸及矿质元素营养价值。结果表明景迈茶中含有全部17种氨基酸,氨基酸总量为12.505%,必需氨基酸总量为4.607%,鲜味氨基酸和药效氨基酸总量分别为5.246%和7.969%,氨基酸的比值系数分(SRC)为77.27;景迈茶中8种矿质元素的含量由高到低的排序是K>Ca>Mg>Mn>Na>Fe>Zn>Cu,除Na外,其余矿质元素的INQ值均大于1。景迈茶第一限制氨基酸是蛋氨酸+胱氨酸,其他氨基酸含量均与模式蛋白含量相当;景迈茶中除Na外,其余矿质元素均可满足人体需要且还富余。
In order to explore the nutritional value of amino acid and mineral elements in Jingmai tea,the content and constituents of amino acid in Jingmai tea were analyzed by automatic amino acid analyzer,and its nutritional value was evaluated by amino acid ratio coefficient.The content of mineral elements was analyzed by FAAS,and its nutritional value was evaluated by index of nutritional quality.The result showed that all Jingmai tea samples included 17 amino acids:the total amount of amino acids was 12.505 %,the content of essential amino acids was 4.607 %,the contents of taste amino acids and medicinal amino acids were 5.246 % and 7.969 % respectively,and the SRC was 77.27.The content of 8 mineral elements in Jingmai tea were K>Ca>Mg>Mn>Na>Fe>Zn>Cu,the INQ values of all mineral elements were exceeded 1,but the INQ of Na was less than 1.The first limiting amino acids in Jingmai tea were methionine and cystine,other amino acids contents were equivalent to the content of the model protein.The mineral elements in Jingmai tea could meet the needs of the human body and have a surplus except Na.

引文

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