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[Objective]This study aimed to analyze the low-polar components and antioxidant activities of Vernonia divergens.[Method]After extraction,the relative contents of various components were calculated with peak area normalization method.In addition,V.divergens were extracted with n-hexane,ethyl acetate and n-butanol,respectively;DPPH scavenging capacity and reducing capacity of these three extracts were analyzed and compared with that of vitamin C.[Result]A total of 29 compounds were identified that accounted for 88.30%of the total amount of low-polar chemical components.The results indicated that n-butanol extract exhibited higher DPPH scavenging capacity and reducing capacity than ethyl acetate extract and n-hexane extract.[Conclusion]This study provided a theoretical basis for the development and utilization of V.divergens.
[Objective] This study aimed to analyze the low-polar components and antioxidant activities of Vernonia divergens. [Method] After extraction, the relative contents of various components were calculated with peak area normalization method. In addition, V. divergens were extracted with n -hexane, ethyl acetate and n-butanol, respectively; DPPH scavenging capacity and reducing capacity of these three extracts were analyzed and compared with that of vitamin C. [Result] A total of 29 compounds were identified that accounted for 88.30% of the total amount of low-polar chemical components. The results indicated that n-butanol extract exhibited higher DPPH scavenging capacity and reducing capacity than ethyl acetate extract and n-hexane extract. [Conclusion] This study provides a theoretical basis for the development and utilization of V .divergens.