梵净山茶中18种矿物质元素的主成分、相关性和聚类分析

发布时间：2018-05-13 21:12

本文选题：梵净山茶 + 矿物质　；参考：《天然产物研究与开发》2017年11期

【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。
[Abstract]:Microwave digestion-inductively coupled plasma mass spectrometry (ICP-MS) was used to determine and compare the difference of mineral elements in Fanjingshan tea. The results showed that the contents of 18 mineral elements in Fanjingshan tea were very similar to each other, the contents of K and mn were higher, the red tea was characterized by high potassium and low sodium, and the beneficial mineral elements of black tea and black tea were higher than that of rattan tea. According to principal component analysis, the characteristic elements in Fanjingshan tea are Caomanconia CoSeSeSeCdfen Hg and Pb.The correlation analysis shows that 18 mineral elements of Fanjingshan tea are significantly correlated or extremely significant, and the mineral elements are classified into 4 groups by cluster analysis. Among them, NaOMg-Mg-Cr-FeOMo is a kind of K _ (K) Cu _ (Cu) Zn, and a class of Cam _ (mn) Co _ (Co) Sei _ (Pb) Pb is a class of aspergite CD _ (2) S _ (b) Hg ~ (2 +) Sn. The contents of mineral elements in Fanjingshan tea were compared and analyzed in order to provide theoretical basis for the development and comprehensive utilization of Fanjingshan tea. The results of cluster analysis provided some references for the further study of physiological needs or external environmental interactions during tea growth.
【作者单位】：铜仁学院材料与化学工程学院;福建农林大学食品科学学院;
【基金】：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(2016SJDCZX001) 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
【分类号】：O657.63;TS272.7

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