FOOD SCIENCE ›› 2011, Vol. 32 ›› Issue (6 ): 127-130.doi: 10.7506/spkx1002-6630-201106028

• Processing Technology • Previous Articles     Next Articles

Extraction and Antioxidant Activity of Total Polyphenols from Ampelopsis grossedendata

CHEN Gen-hong   

  1. Institute of Bioscience and Technology, Hubei University for Nationalities, Enshi 445000, China
  • Received:2010-06-29 Revised:2011-02-14 Online:2011-03-25 Published:2011-03-03
  • Contact: CHEN Gen-hong E-mail:chengh6872@163.com

Abstract: The extraction and antioxidant activity of total polyphenols from Ampelopsis grossedendata were studied in this paper. The optimal extraction conditions were achieved to be extraction at 75 ℃ for 1.5 h with a 25-fole volume of 50% acetone aqueous solution as the extraction solvent. Under the optimal extraction conditions, the yield of total polyphenols was 21.82%. Total polyphenols from Ampelopsis grossedendata showed high reducing power and excellent scavenging effect on hydroxyl, superoxide anion and DPPH free radicals in a dose-dependent manner.

Key words: Ampelopsis grossedendata, total polyphenols, extraction, antioxidant activity

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