|Preferred IUPAC name
|3D model (Jmol)||Interactive image|
|Molar mass||458.372 g/mol|
|soluble (33.3-100 g/L)[vague]|
|Solubility||soluble in ethanol, DMSO, dimethyl formamide at about 20 g/l|
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
|what is ?)(|
It is found in high content in the dried leaves of white tea (4245 mg per 100 g), green tea (7380 mg per 100 g) and, in smaller quantities, black tea. During black tea production, the catechins are mostly converted to theaflavins and thearubigins. via polyphenol oxidases.[which?]
When taken orally, EGCG has poor bioavailability even at such a high amount of daily intake equivalent to 8-16 cups of tea (800 mg), a dose causing mild adverse effects, such as nausea or heartburn. After consumption, EGCG blood levels peak within 1.7 hours, then are excreted into the urine over 3–15 hours.
Research on potential therapeutic uses
EGCG has been the subject of a number of basic and clinical research studies investigating its potential use as a therapeutic for a broad range of disorders. As of 2015, however, these effects remain unsubstantiated in humans and there are no approved health claims for EGCG in the United States or Europe. The US Food and Drug Administration has issued warning letters against marketers of products claiming that EGCG provides anti-disease effects or overall health benefits.
- Health benefits of tea
- Phenolic content in tea
- Green tea extract
- List of phytochemicals in food
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