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普洱茶中主要矿质元素分析

  • 吕海鹏 ,
  • 林智 ,
  • 张悦 ,
  • 梁月荣
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  • 1. 中国农业科学院茶叶研究所,浙江 杭州 310008;
    2. 浙江大学茶叶研究所,浙江 杭州 310058
吕海鹏(1980— ),山东沾化人,博士,主要从事茶叶加工化学研究。

收稿日期: 2013-02-18

  修回日期: 2013-03-09

  网络出版日期: 2019-09-04

基金资助

国家自然科学基金(31000317)

Study on the Content of the Major Mineral Elements in Pu-erh Tea

  • LV Hai-peng ,
  • LIN Zhi ,
  • ZHANG Yue ,
  • LIANG Yue-rong
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  • 1. Tea Research Institute, Chinese Academy of Agricultural Sciences (TRICAAS), Hangzhou, 310008, China;
    2. Zhejiang University Tea Research Institute, Hangzhou, 310058, China;

Received date: 2013-02-18

  Revised date: 2013-03-09

  Online published: 2019-09-04

摘要

采用ICP-OES法测定了普洱茶和晒青毛茶中16种矿质元素的含量,分析了不同产地和不同等级普洱茶样品之间的差异。结果表明,普洱茶中16种矿质元素的含量分别为16.68(B)、3306.64(Ca)、272.18(Fe)、806.05(Al)、14522.80(K)、2054.96(Mg)、682.09(Mn)、0.25(Mo)、487.71(Na)、3628.98(P)、2350.90(S)、173.78(Si)、61.77(Zn)、2.48(Ni)、0.15βmg/kg(Co),Hg在全部样品中均未检出;10种矿质元素(Mn、Na、Zn、Ca、Fe、Al、K、Mg、Ni和Co)在普洱茶中的含量水平都要显著高于晒青毛茶(P<0.05);8种矿质元素(Ca、Fe、Al、K、Mg、S、Ni和Co)的含量水平在4个不同产地的普洱茶样品之间有显著差异(P<0.05);除Ni、Hg外,不同级别普洱茶矿质元素的含量无显著差异(P>0.05)。

本文引用格式

吕海鹏 , 林智 , 张悦 , 梁月荣 . 普洱茶中主要矿质元素分析[J]. 茶叶科学, 2013 , 33(5) : 411 -419 . DOI: 10.13305/j.cnki.jts.2013.05.002

Abstract

The contents of sixteen mineral elements in Pu-erh tea and sun-dried green tea were determined by ICP-OES, and their contents differences in Pu-erh tea with different grades and in different producing areas were also compared. The contents obtained in mg kg-1 for the elements analyzed were 16.68(B), 3306.64(Ca), 272.18(Fe), 806.05(Al), 14522.80(K), 2054.96(Mg), 682.09(Mn), 0.25(Mo), 487.71(Na), 3628.98(P), 2350.90(S), 173.78(Si), 61.77(Zn), 2.48(Ni), 0.15(Co) and undetectable (Hg). The contents of the Mn, Na, Zn, Ca, Fe, Al, K, Mg, Ni and Co in Pu-erh tea were observed to be much higher those in Sun-dried green tea(P<0.05). Significant differences in the content of Ca, Fe, Al, K, Mg, S, Ni and Co were observed in Pu-erh tea with different producing areas(P<0.05). However, there were no significant differences in the content of the studied elements except Ni in Pu-erh tea with different grades(P>0.05).

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