Antioxidant Activities In Vitro of Extracts from the Fermented Chinese Jujube

Abstract:

Chinese Jujube has long been used for human consumption and medicinal purposes in China. The objective of this study was to extract active substance from the powder of fermented Chinese Jujube and to detect their antioxidant capacities. Macroreticular resin was used to separate FJ-1 from 60% ethanol extract, and silica gel column was used for further separation of FJ-2. Precipitation of CPJ was conducted by addition of 95% ethanol to the water extract. The ability to eliminate DPPH•, O2• and •OH of this component was analyzed. Their activities show dose dependence character. FJ-1, FJ-2 show excellent antioxidant capacity on eliminating DPPH• and •OH, but CPJ shows lower capacity. The capacity on eliminating O2• of CPJ is higher than FJ-1, FJ-2 at the same concentration.

• Periodical: Advanced Materials Research (Volumes 554-556)
• Pages: 1211-1215
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.554-556.1211
• Online since: July 2012
• Authors: Yana Yuan, Ping Ping Zhang, Jin Fu Liu, Li Jin Zhang, Tong Hai Liu
• Keywords: Antioxidant Capacity, Chinese Jujube, Fermentation, Flavonoid, Polysaccharide

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