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《Northern Horticulture》 2017-24
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Correlation Between Antioxidant Activity of Apricot Flower Extract and Its Chlorogenic Acid Concentration

LIANG Yongfeng;WANG Xuefeng;MA Wenxia;LI Jiahui;School of Chemistry and Chemical Engineering,Ningxia Normal University;  
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 K3 Fe(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 200-1 μg·mLfor 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.
【Fund】: 宁夏回族自治区科技支撑计划资助项目(NXKJZC2015);; 宁夏师范学院“六盘山资源开发与利用工程中心”资助项目(HG16-08);宁夏师范学院科研资助项目(NXSFYB1789)
【CateGory Index】: R284
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