Digalloyl Glucose
Digalloylglucose may refer to: * 1,6-Digalloylglucose, a gallotannin found in species of oak * 2,6-Digalloylglucose and 3,6-digalloylglucose, gallotannins found in galls of ''Tamarix aphylla ''Tamarix aphylla'' is the largest known species of '' Tamarix'', with heights up to . The species has a variety of common names, including Athel tamarisk, Athel tree, and Athel pine. It is an evergreen tree, native across North, East, and Centr ...''Gall polyphenolics of Tamarix aphylla. Mahmoud A.M. Nawwar and Sahar A.M. Hussein, Phytochemistry, July 1994, Volume 36, Issue 4, Pages 1035–1037, References

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Gallotannin
A gallotannin is any of a class of molecules belonging to the hydrolysable tannins. Gallotannins are polymers formed when gallic acid, a polyphenol monomer, esterifies and binds with the hydroxyl group of a polyol carbohydrate such as glucose. Metabolism Gallate 1-beta-glucosyltransferase uses UDP-glucose and gallate to produce UDP and 1-galloyl-β-D-glucose. Beta-glucogallin O-galloyltransferase uses 1-O-galloyl-β-D-glucose to produce D-glucose and 1-O,6-O-digalloyl-β-D-glucose. Beta-glucogallin-tetrakisgalloylglucose O-galloyltransferase uses 1-O-galloyl-β-D-glucose and 1,2,3,6-tetrakis-O-galloyl-β-D-glucose to produce D-glucose and 1,2,3,4,6-pentakis-O-galloyl-β-D-glucose (1,2,3,4,6-penta-O-galloyl-β-D-glucose, the common precursor of gallotannins and the related ellagitannins). Tannase is a key enzyme in the degradation of gallotannins that uses digallic acid and H2O to produce gallic acid. See also * List of antioxidants in food This is a list of antio ...
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