Theogallin Explained

Theogallin is a trihydroxybenzoic acid glycoside, a type of polyphenolic compound found in tea[1] where it has been characterised as an umami enhancing compound.[2] The compound can also be found in Arbutus unedo fruits.[3]

In rats, theogallin, or its metabolite quinic acid, can move through the blood brain barrier and can have cognition enhancing activities.[4]

Notes and References

  1. Cartwright . R. A. . Roberts . E. A. H. . Theogallin, a polyphenol occurring in tea . Journal of the Science of Food and Agriculture . 5 . 593 . 1954 . 10.1002/jsfa.2740051207 . 12. 1954JSFA....5..593C .
  2. Book: Kaneko . S . Kumazawa . K . Masuda . H . Henze . A . Hofmann . T . Flavour Science - Recent Advances and Trends . 43 . 181 . 2006 . 10.1016/S0167-4501(06)80043-9 . Sensory and structural characterisation of an umami enhancing compound in green tea (mat-cha) . Developments in Food Science . 978-0-444-52742-4.
  3. Phenolics of Arbutus unedo L. (Ericaceae) fruits: identification of anthocyanins and gallic acid derivatives . Pawlowska, A.M., De Leo, M., Braca, A. . J. Agric. Food Chem. . 2006 . 10.1021/jf062230o . 17177565 . 54 . 26 . 10234–8.
  4. Dimpfel . Wilfried . Kler . Adolf . Kriesl . Erwin . Lehnfeld . Romanus . Theogallin and l-theanine as active ingredients in decaffeinated green tea extract: II. Characterization in the freely moving rat by means of quantitative field potential analysis . Journal of Pharmacy and Pharmacology . 59 . 10 . 1397–403 . 2007 . 17910815 . 10.1211/jpp.59.10.0010. 33938157 . free .

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