Dynamic Variation of Tea Saponin and Flavone Content in Camellia oleifera Leaves
YAN Rongling
LIAO Yang?
CHEN Ying
WANG Ge
YIN Xiaolin
XU Lulu
Abstract：The dynamic variation laws of tea saponin and flavone content in Camellia oleifera leaf with different tree age,leaf age and in different months were investigated by the methods of ethanol reflux ex-traction and spectrophotometry determination in the present research. The results showed that, with the tree age increasing,the content of tea saponin and flavone in C. oleifera leaf increased initially and then decreased,and both reached the maximum value around the fifth year,the former was 117. 28 mg/g,and the latter was 43. 61 mg/g. With the increasing of leaf age,the flavone content decreased firstly and then increased while the tea saponin content kept increasing. Their contents in leaves of 30-year tree showed a significant volatility from January to December,the content of flavone changed in the range of 20. 14—22. 78 mg/g,and had two peaks in both April and October while the tea saponin content changed from 50. 69 mg/g to 60. 86 mg/g,and maintained a high level from August to October. The results indicate that if C. oleifera leaves are used as raw material for flavone and tea saponin extraction,the old leaves around October should be chosen,and tree age selection follows the principle of the sooner the better when the profit less than the cost.
Keywords：Camellia oleiferaflavonetea saponintree ageleaf agedynamic variation
Publication Date：2015-01-01
Online Publishing Date：2026-09-12(First online date of this platform, not the publication date of the document)
Pages：4( 33-36 )