摘要
为比较我国10种主栽品种鲜食梨矿质元素的差异,采用微波消解-电感耦合等离子体质谱(ICP-MS)法进行8种矿质元素(钠、镁、钾、钙、锰、铁、铜、锌)的测定,通过相关性分析、聚类分析热图、主成分分析进行了综合评价。结果表明:不同品种鲜食梨中矿质元素差异明显,变异系数范围比较大为:21.2%~96.2%之间,各矿质元素平均含量高低为钾(K)>镁(Mg)>钠(Na)>钙(Ca)>铁(Fe)>锰(Mn)>铜(Cu)>锌(Zn);相关分析表明,钙元素和锰元素之间存在极为显著正相关;聚类分析热图表明10种资源梨可以划分为3大类;利用主成分分析提取了4个主成分,建立了综合评价模型,综合评分由高到底依次为:‘丰水梨’、‘南国梨’、‘香梨’、‘丑梨’、‘水晶梨’、‘茄梨’、‘秋月梨’、‘皇冠梨’、‘雪花梨’、‘蜂蜜脆梨’。
To explore the differences of mineral elements in 10 main cultivars of table pears in China,eight mineral elements(sodium,magnesium,potassium,calcium,manganese,iron,copper,zinc)were determined by microwave digestion and inductively coupled plasma mass spectrometer(ICP-MS).The thermal maps of correlation analysis,principal component analysis and cluster analysis were used for comprehensive evaluation.The results showed that the content of mineral elements in different varieties of table pear was varied greatly,and the variation coefficient ranged from 21.2%to 96.2%.The average content of each mineral elements in pears were:K>Mg>Na>Ca>Fe>Mn>Cu>Zn.The correlation analysis showed that there was a strong positive correlation between Ca element and Mn element.The cluster analysis heat map divided 10 pear resources into 3 groups.Four principal components were selected by principal component analysis,and a comprehensive evaluation model was established.The comprehensive score from high to low were as follows:‘Fengshui pear’,‘Nanguo pear’,‘Xiangli pear’,‘Chou Pear’,‘Crystal pear’,‘Eggplant pear’,‘Qiuyue pear’,’Crown pear’,‘Snow pear’and‘Honey Crisp pear’.
作者
刘振艳
陈晓婷
朱金峰
孔婉莹
裴芳艺
LIU Zhenyan;CHEN Xiaoting;ZHU Jinfeng;KONG Wanying;PEI Fangyi(Health Inspection Center,Qiqihar Medical University,Qiqihar 161006)
出处
《中国食品添加剂》
CAS
北大核心
2022年第8期195-201,共7页
China Food Additives
基金
黑龙江省省教育厅项目(2021-KYYWF-0381)
齐齐哈尔市科技局项目(SFGG-201558)。
关键词
梨
品种
矿质元素
聚类分析热图
主成分分析
pear
variety
mineral element
cluster analysis heat map
principal component analysis
作者简介
刘振艳(1986-),女,硕士,实验师,研究方向:药食同源蛋白质及食品营养,E-mail:lzy8023@qmu.edu.cn;通信作者:裴芳艺(1990-),女,博士,副研究员,研究方向:微生物资源发掘与利用,E-mail:fangyipei@126.com。
