[Content analysis of total polyphenol in the leaves of Jatrophy curcas. L].
OBJECTIVE
To establish a method for analyzing the content of total polyphenols in leaves of Jatropha curcas. L.


METHODS
Gallic acid was used as reference substance, the content of total polyphenols was analyzed Folin-Ciocalteu chromatometry.


RESULTS
There was a good linearity for gallic acid in the range of 0.002-0.010 g.L(-1). The content of total polyphenols in the leaves of Jatropha curcas. L was approximately 6.74% with RSD 0.75%. The sample solution was stable during 10-90 min with RSD 0.28%. The precision RSD was 0.23% and the average recovery 99.85% (n=5).


CONCLUSIONS
This method is simple, fast and reproducible.
Gong
Wen-fei
WF
Pharmacy department, Zhujiang Hospital, Southern Medical University, Guangzhou 510282, China.
Wang
Tie-shan
TS
Lin
Jing-ming
JM
D019665:Euphorbiaceae / Q000737:chemistry*; D018515:Plant Leaves / Q000737:chemistry*; D059808:Polyphenols / Q000032:analysis* / Q000302:isolation & purification
D059808:Polyphenols