Radical-scavenging-linked antioxidant activities of extracts from black chokeberry and blueberry cultivated in Korea

Seok Joon Hwang, Won Byong Yoon, Ok-Hwan Lee, Seung Ju Cha, Jong Dai Kim, , 

Abstract

The objective of this study was to investigate the radical-scavenging-linked antioxidant properties of the extracts from black chokeberry and blueberry cultivated in Korea. The 70% ethanol extracts were prepared from black chokeberry and blueberry, and evaluated for total phenolic content, total flavonoid content, total proanthocyanidin content, and antioxidative activities, using various in vitro assays, such as DPPH(2,2-diphenyl-1-picrylhydrazyl), ABTS(2,2-azino-bis-(3-ethylenebenzothiozoline-6-sulphonic acid)) radical-scavenging activity, FRAP(ferric-reducing antioxidant power) and reducing power. The major phenolic compounds, including cyanidin-3-galactoside, cyanidin-3-arabinoside, neochlorogenic acid,

neochlorogenic acid and procyanidin B1 were also obtained from Chengdu Biopurify Phytochemicals Ltd.