Molecules 2011, 16(10), 8590-8600; doi:10.3390/molecules16108590
Article

Antioxidant Potential of Polyphenols and Tannins from Burs of Castanea mollissima Blume

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Received: 31 August 2011; in revised form: 29 September 2011 / Accepted: 29 September 2011 / Published: 12 October 2011
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Abstract: Spiny burs of Castanea mollissima Blume (Chinese chestnut) are usually discarded as industrial waste during post-harvesting processing. The objective of this study was to establish an extraction and isolation procedure for tannins from chestnut burs, and to assess their potential antioxidant activity. Aqueous ethanol solution was used as extraction solvent, and HPD 100 macroporous resin column was applied for isolation. The influence of solvent concentration in the extraction and elution process on extraction yield, tannins and polyphenols content, as well as antioxidant potential, including DPPH and ABTS radical scavenging ability, reducing power ability and cellular antioxidant ability were assessed. In both the extraction and isolation process, 50% aqueous ethanol led to superior total tannins and polyphenols content as well as significantly higher antioxidant activity. In addition, the antioxidant activity and the total tannins content in extracts and fractions had a positive linear correlation, and the predominant components responsible for antioxidant activities were characterized as hydrolysable tannins. To the best of our knowledge, this is the first report on the enrichment of tannins from burs of C. mollissim using macroporous resin chromatography, and to assess the cellular antioxidant activity of them.
Keywords: Castanea mollissima; polyphenols; tannins; antioxidant; chestnut burs
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MDPI and ACS Style

Zhao, S.; Liu, J.Y.; Chen, S.Y.; Shi, L.L.; Liu, Y.J.; Ma, C. Antioxidant Potential of Polyphenols and Tannins from Burs of Castanea mollissima Blume. Molecules 2011, 16, 8590-8600.

AMA Style

Zhao S, Liu JY, Chen SY, Shi LL, Liu YJ, Ma C. Antioxidant Potential of Polyphenols and Tannins from Burs of Castanea mollissima Blume. Molecules. 2011; 16(10):8590-8600.

Chicago/Turabian Style

Zhao, Shan; Liu, Jie Yuan; Chen, Si Yu; Shi, Ling Ling; Liu, Yu Jun; Ma, Chao. 2011. "Antioxidant Potential of Polyphenols and Tannins from Burs of Castanea mollissima Blume." Molecules 16, no. 10: 8590-8600.

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