Gallic acid and mineral element contents in leaves of Pithecellobium clypearia
LIU Ya-qing
PAN Chao-mei
ZHANG Cai-dong
ZHAO Jia-chun
HE Jie
SU Jia-xian
ZOU Guo-guang
YANG Sen-shan
Abstract：Objective:To analysis the characteristics of main mineral elements and efficacy components to determine the suitable harvest period and provide reference for plants fertilization.Methods:As medicinal materials,the changes in the contents of seven mineral elements (N,P,K,Ca,Mg,Na,Cu) and gallic acid of the leaves of Pithecellobium clypearia (Jack) Benth.in different growth years and different seasons were studied.Results:The contents of mineral elements and gallic acid were higher in the three-year-old leaves than in one-year-old leaves of P.clypearia,so it was considered that harvesting three-years leaves of Pithecellobium clypearia wouid be more economical.Conclusion:In the growth cycles,the accumulation of seven mineral elements and gallic acid of the leaves of Pithecellobium clypearia leaves were in a period of volatility during the June-September period,Comprehensive consideration suggests that it is more economic and rational to harvest three-year-old leaves.
Keywords：Pithecellobium clypearia (Jack) Benth.mineral elementgallic acidcontentdynamic change
Publication Date：2017-01-01
Online Publishing Date：2026-08-14(First online date of this platform, not the publication date of the document)
Pages：4( 804-807 )