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.
^Cammann, Jessica; Denzel, Klaus; Schilling, Gerhard; Gross, Georg G. (August 1989). "Biosynthesis of gallotannins: β-Glucogallin-dependent formation of 1,2,3,4,6-pentagalloylglucose by enzymatic galloylation of 1,2,3,6-tetragalloylglucose". Archives of Biochemistry and Biophysics. 273 (1): 58–63. doi:10.1016/0003-9861(89)90161-6. PMID 2757399.
November 28, 2023
gallotannin, gallotannin, class, molecules, belonging, hydrolysable, tannins, polymers, formed, when, gallic, acid, polyphenol, monomer, esterifies, binds, with, hydroxyl, group, polyol, carbohydrate, such, glucose, metabolism, editgallate, beta, glucosyltrans. 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 editGallate 1 beta glucosyltransferase uses UDP glucose and gallate to produce UDP and 1 galloyl beta D glucose Beta glucogallin O galloyltransferase uses 1 O galloyl beta D glucose to produce D glucose and 1 O 6 O digalloyl beta D glucose Beta glucogallin tetrakisgalloylglucose O galloyltransferase uses 1 O galloyl beta D glucose and 1 2 3 6 tetrakis O galloyl beta D glucose to produce D glucose and 1 2 3 4 6 pentakis O galloyl beta D glucose 1 2 3 4 6 penta O galloyl b D glucose the common precursor of gallotannins and the related ellagitannins 1 Tannase is a key enzyme in the degradation of gallotannins that uses digallic acid and H2O to produce gallic acid See also editList of antioxidants in foodReferences edit Cammann Jessica Denzel Klaus Schilling Gerhard Gross Georg G August 1989 Biosynthesis of gallotannins b Glucogallin dependent formation of 1 2 3 4 6 pentagalloylglucose by enzymatic galloylation of 1 2 3 6 tetragalloylglucose Archives of Biochemistry and Biophysics 273 1 58 63 doi 10 1016 0003 9861 89 90161 6 PMID 2757399 Retrieved from https en wikipedia org w index php title Gallotannin amp oldid 1170336519, wikipedia, wiki, book, books, library,
