天然产物研究与开发 ›› 2017, Vol. 29 ›› Issue (11): 1888-1894.doi: 10.16333/j.1001-6880.2017.11.013

• 研究简报 • 上一篇    下一篇

梵净山茶中18种矿物质元素的主成分、相关性和聚类分析

熊冬华1,2,李刚凤1*,杨天友1,罗静1,李建新1,徐路1   

  1. 1铜仁学院材料与化学工程学院,铜仁 554300;2福建农林大学食品科学学院,福州 350002
  • 出版日期:2017-11-29 发布日期:2017-11-30
  • 基金资助:

    贵州省普通高等学校产学研基地项目(2015-346);贵州省教育厅大学生创新创业训练中心项目(2016SJDCZX 001);贵州省科技厅农业攻关项目(2015-3011-1);贵州省环保厅项目(2014-348);铜仁学院食品科学与工程校级重点支持学科建设项目

Principal Component Analysis,Correlation and Cluster analysis of 18 Mineral Elements in Fanjing Mountains Tea

XIONG Dong-hua1,2, LI Gang-feng1*, YANG Tian-you1, LUO Jing1, LI Jian-xin1, XU Lu1   

  1. 1College of Material and Chemical Engineering,Tongren University,Tongren 554300,China; 2College of Food Science and Technology,Fujiaan Agriculture and Forestry University,Fuzhou 350002,China
  • Online:2017-11-29 Published:2017-11-30

摘要: 选用微波消解-电感耦合等离子体质谱法测定与比较分析梵净山茶中矿质元素含量的差异。结果表明,梵净山茶中18种矿物质元素含量变化趋势极相似,K和Mn含量均较高,红茶具高钾低钠特点,红茶和黑茶的有益矿物质元素比藤茶高。经主成分分析可知梵净山茶中特征元素为Ca、Mn、Co、Se、Cd、Hg和Pb;相关性分析显示梵净山茶18种矿质元素呈显著相关或极显著相关;聚类分析将矿物质元素分为4类,其中Na、Mg、Cr、Fe、Mo聚为一类;K、Cu、Zn为一类;Ca、Mn、Co、Se、Pb为一类;As、Cd、Sb、Hg、Sn为一类。通过对梵净山茶中矿物质元素含量比较分析,以期为梵净山茶的开发和综合利用提供理论依据,且聚类分析结果为进一步研究茶叶生长过程中的生理需要或者外部环境相互作用提供一定参考依据。

关键词: 梵净山茶, 矿物质, 主成分分析, 相关性分析, 聚类分析

Abstract: Microwave digestion inductively coupled plasma mass spectrometry was used to compare and analyze the difference of mineral elements in FanjingMountains tea.The results showed that the content of 18 minerals in FanjingMountains tea trend very similar,and the content of K and Mn were higher,Black Tea with high K low Na characteristics,the beneficial elements of Black Tea and dark Tea were higher than Ampelopsis grossedentata. The principal component analysis showed that the characteristic elements in tea were Ca,Mn,Co,Se,Cd,Hg and Pb;Correlation analysis displayed that the 18 mineral elements showed significant correlation or extremely significant correlation;Cluster analysis will be divided mineral elements into 4 categories,of which Na,Mg,Cr,Fe and Mo were clustered into one category;K,Cu and Zn as a class;Ca,Mn,Co,Se and Pb as a class;As,Cd,Sb,Hg and Sn were one kind.Through the comparative analysis of mineral elements in Fanjing Mountains tea,in order to provide a theoretical basis for the development and comprehensive utilization of Fanjing Mountains tea,and the results of cluster analysis provided some reference for the further study of the physiological needs of tea growth and the interaction of the external environment.

Key words: FanjingMountains tea, minerals, principal component analysis, correlation analysis, cluster analysis

中图分类号: 

O657.31