ellagitannin
Sign in to saveAlso known as ellagitannins
thumb|right|130px|Castalagin is a representative ellagitannin, characterized by coupled gallic acid substituents The ellagitannins are a diverse class of hydrolyzable tannins, a type of polyphenol formed primarily from the oxidative linkage of galloyl groups in 1,2,3,4,6-pentagalloyl glucose. Ellagitannins differ from gallotannins, in that their galloyl groups are linked through C-C bonds, whereas the galloyl groups in gallotannins are linked by depside bonds.
Research
4,330 papers- Ellagitannin Component Punicalin Ameliorates Cognitive Dysfunction, Oxidative Stress, and Neuroinflammation via the Inhibition of cGAS-STING Signaling in the Brain of an Aging Mouse Model.Phytotherapy research : PTR · 2024
- Health functions and related molecular mechanisms of ellagitannin-derived urolithins.Critical reviews in food science and nutrition · 2024
- Geraniin: A dietary ellagitannin as a modulator of signalling pathways in cancer progression.Fitoterapia · 2024
- Recent progress in ellagitannin chemistry.Phytochemistry · 2005
- Ellagitannin Content in Extracts of the Chestnut Wood Aesculus.Molecules (Basel, Switzerland) · 2024
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Wikidata facts
- Subclass of
- polyphenol
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- Commons category
- Ellagitannins
- topic's main category
- Category:Ellagitannins
- subject has role
- aromatase inhibitors
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Encyclopedic overview
9 sectionsContents
- Examples
- Metabolism
- Degradation
- Natural occurrences
- See also
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- Further reading
- External links
thumb|right|130px|Castalagin is a representative ellagitannin, characterized by coupled gallic acid substituents The ellagitannins are a diverse class of hydrolyzable tannins, a type of polyphenol formed primarily from the oxidative linkage of galloyl groups in 1,2,3,4,6-pentagalloyl glucose. Ellagitannins differ from gallotannins, in that their galloyl groups are linked through C-C bonds, whereas the galloyl groups in gallotannins are linked by depside bonds.
Ellagitannins contain various numbers of hexahydroxydiphenoyl units, as well as galloyl units and/or sanguisorboyl units bounded to sugar moiety. In order to determine the quantity of every individual unit, the hydrolysis of the extracts with trifluoroacetic acid in methanol/water system is performed. Hexahydroxydiphenic acid, created after hydrolysis, spontaneously lactonized to ellagic acid, and sanguisorbic acid to sanguisorbic acid dilactone, while gallic acid remains intact.
Excerpted from Wikipedia’s “ellagitannin” article, available under the CC BY-SA 4.0 licence.