热带亚热带植物学报2024，Vol.32Issue(5)：667-674,8.DOI:10.11926/jtsb.4804
金花茶叶活性成分分析
Active Constituent Analysis in Six Camellia sect.Chrysantha Leaves
摘要
Abstract
In order to understand the mineral element composition and active component,the contents of seven mineral elements(K,Mg,Ca,Na,Fe,Zn,Se),total phenol,total flavone,total ascorbic acid and soluble sugar,tea polyphenol,caffeine and amino acid in the leaves of six Camellia species,such as C.achrysantha,C.long-zhouensis,C.ptilosperma,C.limonia,C.chuongtsoensis and C.nitidissima,were determined.Based on the contents of active component,principal component analysis and cluster analysis were studied.The results showed that the contents of K,Mg,and Na in C.limonia were the highest,which were 18.70,2.67,and 1.01 g/kg,respectively.The Ca content in C.achrysantha was the highest(42.99 g/kg),the Fe content in C.chuongtsoensis was the highest(334.14 mg/kg),the Zn content in C.ptilosperma was the highest with 22.46 mg/kg;the Se content in C.long-zhouensis was the highest with 0.47 mg/kg.There were significant differences in seven mineral elements in leaves among different species(P<0.05).A total of 15 amino acids were detected in 6 Camellia species,only asparagine,tryptophan,threonine,cysteine and glutamine were missing.The active ingredient contents in 6 Camellia species showed the trend of soluble sugar>total phenol>total flavone>total ascorbic acid,and those of C.ptilosperma were the highest.The content of tea polyphenol in C.achrysantha was the highest.The caffeine content in 6 Camellia species was low,but not detected in C.achrysantha and C.chuongtsoensis.The principal component analysis showed that the cumulative contribution rate of PC1,PC2 and PC3 reached 87.439%,and based on comprehensive score of component content,C.limonia was the best.The cluster analysis based on active component content showed that the difference between C.limonia and other species was large,and that between C.achrysantha and C.ptilosperma,C.chuongtsoensis and C.nitidissima was small.Therefore,these would provide theoretical basis for the development and utilization of Camellia sect.Chrysantha.关键词
金花茶/叶/活性成分/相关性分析Key words
Camellia sect.Chrysantha/Leaf/Active component/Correlation analysis引用本文复制引用
吴帆,夏浪,谢鑫,张月..金花茶叶活性成分分析[J].热带亚热带植物学报,2024,32(5):667-674,8.基金项目
贵阳康养职业大学校级科研项目(贵康大K2022-5)资助This work was supported by the Project for Scientific Research of Guiyang Healthcare Vocational University(Grant No.K2022-5). （贵康大K2022-5）
