Digallic acid explained

Digallic acid is a polyphenolic compound found in Pistacia lentiscus.[1] Digallic acid is also present in the molecule of tannic acid.[2] Digalloyl esters involve either -meta, or -para depside bonds.[3]

Tannase is an enzyme that uses digallate to produce gallic acid. This enzyme can also be used to produce digallic acid from gallotannins.[4]

Notes and References

  1. Bhouri . W. . Derbel . S. . Skandrani . I. . Boubaker . J. . Bouhlel . I. . Sghaier . M. B. . Kilani . S. . Mariotte . A. M. . Dijoux-Franca . M. G. . Ghedira . 10.1016/j.tiv.2009.06.024 . K. . Chekir-Ghedira . L. . Study of genotoxic, antigenotoxic and antioxidant activities of the digallic acid isolated from Pistacia lentiscus fruits . Toxicology in Vitro . 24 . 2 . 509–515 . 2010 . 19563883.
  2. Delahaye . P. . Verzele . M. . 10.1016/S0021-9673(01)96734-2 . Analysis of gallic, digallic and trigallic acids in tannic acids by high-performance liquid chromatography . Journal of Chromatography A . 265 . 363–367 . 1983 .
  3. Web site: The Tannin Handbook . Ann E. Hagerman . Miami University .
  4. Nierenstein . M. . A biological synthesis of m-digallic acid . The Biochemical Journal . 26 . 4 . 1093–1094 . 1932 . 16744910 . 1261008 . 10.1042/bj0261093.

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