Antioxidant Activities of The Extracts of Carya cathayensis Sarg.

Abstract

With the

Carya cathayensis Sarg. produced in Lin'an, Zhejiang Province as the research object,Caryaextracts of epicarp (CCEE), Carya cathayensis Sarg. extracts of leaf (CCEL)Carya cathayensis Sarg. extracts of tegument (CCET). On this basis, we also researchedCarya cathayensis Sarg., 20 % methanol enrichmentCarya cathayensis Sarg. extracts of epicarp (20 % MEF-CSEE), 40 % methanolCarya cathayensis Sarg. extracts of epicarp (40 %MEF-CSEE), 60 %Carya cathayensis Sarg. extracts of epicarp (60 % MEF-CSEE)

Carya cathayensis Sarg.

the 40 % MEF-CSEE contains the highest amount of total phenolics, the 20 % MEF-CSEE

contains the highest amount of total flavonoids. Through the research of antioxidant activity we

know that all the parts of the ethanol extracts in the

scavenging free radicals, among which the antioxidant activity in the 40 % MEF-CSEE part is

the strongest. Here, the main components of antioxidant activity should be the flavonoids and

the phenolic components and we further know that there is a direct relationship between contents

of the flavonoids and the phenolic and the antioxidant activity. The exocarp of

cathayensis Sarg

of antioxidants.The experiment result provided a scientific basis for the further development of

its medical effects and the research for the

tegument.

all contain the flavonoids and the phenolic component, among whichCarya cathayensis Sarg. have the effect ofCaryais a under utilized resource, It might be considered as a potential plant sourceCarya cathayensis Sarg. epicarp, its leaf and the

this paper determined the content of the total flavonoids and the total phenolic in the

cathayensis Sarg.

and the

the ethanol extracts in different part of the

fraction of

enrichment fraction of

methanol enrichment fraction of

on DPPH radicals scavenging effect. The experiment result shows that the different part of the