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茶叶科学 ›› 2006, Vol. 26 ›› Issue (4): 299-304.doi: 10.13305/j.cnki.jts.2006.04.013

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大气CO2浓度对茶叶品质的影响

蒋跃林1, 张庆国1, 张仕定2   

  1. 1. 安徽农业大学资源与环境学院,安徽 合肥 230036;
    2. 中国科技大学理化实验中心,安徽 合肥 230026
  • 收稿日期:2006-04-14 修回日期:2006-07-20 出版日期:2006-12-25 发布日期:2019-09-11
  • 作者简介:蒋跃林(1962- ),男,安徽明光人,教授,主要从事植物环境生理生态方面教学与研究。
  • 基金资助:
    国家自然科学基金项目(70271062)和安徽省高校自然科学研究项目(2006KJ044)资助

Effects of Atmospheric CO2 Concentration on Tea Quality

JIANG Yue-lin1, ZHANG Qing-guo1, ZHANG Shi-ding2   

  1. 1. College of Resources and Environmental Science, Anhui Agricultural University, Hefei 230036, China;
    2. Center for Physics and Chemistry Science, University of Science and Technology of China, Hefei 230026, China
  • Received:2006-04-14 Revised:2006-07-20 Online:2006-12-25 Published:2019-09-11

摘要: 通过开顶式气室控制CO2浓度,对盆栽茶树进行试验测定,研究了大气CO2浓度升高对茶叶品质成分氨基酸、茶多酚、咖啡碱、可溶性糖和主要营养元素含量的影响。结果表明,在大气CO2浓度为550和750βμmol/mol时,与正常大气CO2水平相比,春茶氨基酸含量下降4.5%和12.2%,夏茶氨基酸含量降低1.7%和6.7%,秋茶降幅为2.9%和10.8%;茶叶咖啡碱含量降低3.1%~4.6%和5.1%~10.7%;但茶叶茶多酚和可溶性糖含量降CO2浓度升高而提高,茶多酚含量提高3.8%~6.0%和6.9%~11.3%,可溶性糖含量增加8.4%~14.4%和18.1%~28.2%。同时,大气CO2浓度的升高使茶叶营养元素氮、钾、钙、磷、钠含量有不同程度降低,而锌、镁、铁含量有所增加,其中,茶叶氮、钾元素含量降低6.1%~16.3%和12.9%~22.9%,锌、镁含量分别提高5.8%~17.8%和11.3%~16.0%。

关键词: CO2, 增加, 品质,

Abstract: The quality components including amino acids, polyphenols, caffeine, soluble sacchrides and main nutrient elements in tea were measured under ambient and elevated CO2 conditions, and effects of elevated atmospheric CO2 concentration on tea quality were analysed. The results showed that amino acid contents in tea decreased by 1.7%~4.5% and 6.7%~12.2% under elevated (500 and 750βμmol/mol) CO2, compared to the ambient air CO2 concentration. At the same time, the caffeine contents reduced by 3.1%~4.6% and 5.1%~10.7%. The polyphenol contents increased by 3.8%~6.0% and 6.9%~11.3%. The solule sacchride contents increased by 8.4%~14.4% and 18.1%~28.2%. It was also found that the N, K, Ca, P and Na contents in tea decreased to some extent. The Zn, Mg and Fe contents increased with CO2 enrichment.

Key words: CO2, elevated, quality, tea

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