The pomegranate ellagitannins, which include punicalagin isomers, are ellagitannins found in the sarcotestas, rind (peel), bark or heartwood of the pomegranate fruit (Punica granatum).
Chemistry Punicalagins are not unique to pomegranate, as they are present in numerous species of the genus Terminalia, species chebula Retz., myriocarpa, catappa, and from Cistus salvifolius and Combretum molle.
Dietary supplementation A few dietary supplements and nutritional ingredients are available that contain extracts of whole pomegranate and/or are standardized to punicalagins, the marker compound of pomegranate. Extracts of pomegranate are also 'Generally Recognized As Safe' (GRAS) by the United States.
List of compounds
Ellagitannins Pedunculagin, a compound found in the pericarp of the pomegranate (Punica granatum). Punicacortein A, a compound found in the bark of P. granatum and in Osbeckia chinensis Punicacortein B, a compound found in the bark of P. granatum Punicacortein C, a compound found in the bark of P. granatum Punicacortein D, a compound found in the bark and heartwood of P. granatum Punicafolin, a compound found in the leaves of Punica granatum Punigluconin, a compound found in the bark of P. granatum and in Emblica officinalis Punicalagin, a compound found in the pericarps of P. granatum Punicalin, a compound found in pomegranates or in the leaves of Terminalia catappa Granatin A, a compound found in the pericarp of P. granatum Granatin B, a compound found in the fruit of P. granatum Diellagic acid rhamnosyl (1→4) glucopyranoside 5-O-galloylpunicacortein D 2-O-galloylpunicalin Casuarinin, a compound found in the pericarp of P. granatum Gallagyldilactone, a compound found in the pericarp of P. granatum Corilagin, a compound found in the leaves of P. granatum and other species Strictinin, a compound found in the leaves of P. granatum
Other phenolics Ellagic acid, a constitutive compound of ellagitannins Gallagic acid, a compound found in many ellagitannins 1,2,4,6-tetra-O-galloyl-β-D-glucose, a compound found in the leaves of P. granatum 1,2,3,4,6-penta-O-galloyl-β-D-glucose, a compound found in the leaves of P. granatum and the common precursor of gallotannins and the related ellagitannins Brevifolin, a compound found in the leaves of P. granatum Brevifolin carboxylic acid, a compound found in the leaves of P. granatum 3,6-(R)-hexahydroxydiphenoyl-(α/β)-C-glucopyranose, a compound found in the leaves of P. granatum 1,2,6-tri-O-galloyl-β-C-glucopyranose, a compound found in the leaves of P. granatum 1,4,6-tri-O-galloyl-β-C-glucopyranose, a compound found in the leaves of P. granatum 3,4,8,9,10-pentahydroxydibenzo[b,d]pyran-6-one, a compound found in the leaves of P. granatum
See also List of antioxidants in food
References