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Epicatechin gallate

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Title: Epicatechin gallate  
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Epicatechin gallate

Epicatechin gallate
Chemical structure of epicatechin gallate
Identifiers
CAS number  YesY
PubChem
ChemSpider  N
ChEBI  N
ChEMBL  N
Jmol-3D images Image 1
Properties
Molecular formula C22H18O10
Molar mass 442.37 g/mol
Except where noted otherwise, data are given for materials in their standard state (at 25 °C (77 °F), 100 kPa)
 N   YesY/N?)

Epicatechin gallate (ECG) is a flavan-3-ol, a type of flavonoid, present in green tea.[1] It is also reported in buckwheat[2] and in grape.[3]

The tea component epicatechin gallate is being researched because in vitro experiments showed it can reverse methicillin resistance in bacteria like Staphylococcus aureus.[1] If confirmed, this means the combined intake of a tea extract containing this component might also enhance the effectiveness of methicillin treatment against some resistant bacteria in vivo.

References

  1. ^ a b Shiota, S; Shimizu, M; Mizushima, T; Ito, H; Hatano, T; Yoshida, T; Tsuchiya, T (1999). "Marked reduction in the minimum inhibitory concentration (MIC) of beta-lactams in methicillin-resistant Staphylococcus aureus produced by epicatechin gallate, an ingredient of green tea (Camellia sinensis)". Biological & pharmaceutical bulletin 22 (12): 1388–90.  
  2. ^ Danila, Ana-Maria; Kotani, Akira; Hakamata, Hideki; Kusu, Fumiyo (2007). "Determination of Rutin, Catechin, Epicatechin, and Epicatechin Gallate in BuckwheatFagopyrum esculentumMoench by Micro-High-Performance Liquid Chromatography with Electrochemical Detection". Journal of Agricultural and Food Chemistry 55 (4): 1139–43.  
  3. ^ Souquet, Jean-Marc; Cheynier, Véronique; Brossaud, Franck; Moutounet, Michel (1996). "Polymeric proanthocyanidins from grape skins". Phytochemistry 43 (2): 509.  

See also

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