Correlation Between Antioxidant Activity of Apricot FlowerExtract and Its Chlorogenic Acid Concentration(PDF)

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Title:: Correlation Between Antioxidant Activity of Apricot FlowerExtract and Its Chlorogenic Acid Concentration

Author(s):: LIANG Yongfeng; WANG Xuefeng; MA Wenxia; LI Jiahui; School of Chemistry and Chemical Engineering,Ningxia Normal University,Guyuan,Ningxia 756000

Keywords:: apricot blossom extraction; antioxidant; chlorogenic acid; correlation

Abstract:: Taking apricot as test material,antioxidant activity of chlorogenic acid extracted from apricot flower was measured by D-deoxyribose-iron system method along with 2,2-diphenyl-1-picrylhydrazyl pyrogallol autoxidation method,while vitamin C and chlorogenic acid were used as reference substance and reduction ability of the extract was measured by using K3Fe(CN)6.The results showed that apricot flower extract had strong reducibility,and its antioxidant activity was closely related to chlorogenic acid content.The extract had higher anti-hydroxyl and anti-DPPH? activity but lower anti-superoxide anion activity than vitamin C.Its reducibility with concentration of 200 μg?mL-1 for hydroxyl was as high as 64.09%,and antioxidant activity was 95.26% and 81.34% for superoxide anion and DPPH?,respectively.This study showed that the main extract of apricot flower was chlorogenic acid and its concentration largely determined reductive and antioxidant activities of the extract.

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Last Update: 2017-12-29