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Hagerman AE, Riedl KM, Jones GA, et al. High Molecular Weight Plant Polyphenolics (Tannins) as Biological Antioxidants. J Agric Food Chem. 1998;46(5):1887-1892doi: 10.1021/jf970975b.
Hagerman, A. E., Riedl, K. M., Jones, G. A., Sovik, K. N., Ritchard, N. T., Hartzfeld, P. W., & Riechel, T. L. (1998). High Molecular Weight Plant Polyphenolics (Tannins) as Biological Antioxidants. Journal of agricultural and food chemistry, 46(5), 1887-1892. https://doi.org/10.1021/jf970975b
Hagerman, Ann E, et al. "High Molecular Weight Plant Polyphenolics (Tannins) as Biological Antioxidants." Journal of agricultural and food chemistry vol. 46,5 (1998): 1887-1892. doi: https://doi.org/10.1021/jf970975b
Hagerman AE, Riedl KM, Jones GA, Sovik KN, Ritchard NT, Hartzfeld PW, Riechel TL. High Molecular Weight Plant Polyphenolics (Tannins) as Biological Antioxidants. J Agric Food Chem. 1998 May;46(5):1887-1892. doi: 10.1021/jf970975b. PMID: 29072454.
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J Agric Food Chem. 1998 May;46(5):1887-1892. doi: 10.1021/jf970975b.

High Molecular Weight Plant Polyphenolics (Tannins) as Biological Antioxidants.

Journal of agricultural and food chemistry

Ann E Hagerman, Ken M Riedl, G Alexander Jones, Kara N Sovik, Nicole T Ritchard, Paul W Hartzfeld, Thomas L Riechel

Affiliations

  1. Department of Chemistry and Biochemistry, Miami University, Oxford, Ohio 45056.

PMID: 29072454 DOI: 10.1021/jf970975b

Abstract

Representative condensed and hydrolyzable tannins and related simple phenolics were evaluated as biological antioxidants using cyclic voltammetry, the metmyoglobin assay, and the deoxyribose assay. The redox potentials of the tannins were similar to those of structurally related simple phenolics. However, the tannins were 15-30 times more effective at quenching peroxyl radicals than simple phenolics or Trolox. One of the tannins, polygalloyl glucose, reacted an order of magnitude more quickly with hydroxyl radical than mannitol. These results suggest that tannins, which are found in many plant-based foods and beverages, are potentially very important biological antioxidants.

Keywords: Tannins; plant phenolics; antioxidant; total antioxidant activity; oxidative damage; dietary antioxidant.

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