title: Identification of cyanidin 3-O-β-(6″-(3-hydroxy-3-methylglutaroyl)glucoside) and other anthocyanins from wild and cultivated blackberries.
abstract: Anthocyanins from blackberries are natural dietary pigments. The aim of this study was to investigate the occurrence of anthocyanins in fruits of wild Norwegian blackberries and three blackberry ( Rubus fruticosus L.) cultivars and to report the complete identification of cyanidin 3-O-β-(6″-(3-hydroxy-3-methylglutaroyl)glucopyranoside), 5. This new pigment is most probably the same pigment that has previously been reported to occur in various blackberry samples as cyanidin 3-dioxalylglucoside. All of the examined blackberry samples contained in similar relative proportions the 3-glucoside (1), 3-rutinoside (2), 3-xyloside (3), and 3-O-β-(6″-malonylglucoside) (4) of cyanidin and 5. The absolute amounts of 1-5 in the wild Norwegian blackberries were 249, 18, 10, 24, and 22 mg of cyanidin 3-glucoside equivalents/100 g of fresh weight, respectively.
authors.affiliation: Department of Chemistry, University of Bergen, Bergen, Norway. monica.jordheim@kj.uib.no
authors.forename: Monica
authors.initials: M
authors.lastname: Jordheim
authors.forename: Kjersti Hasle
authors.initials: KH
authors.lastname: Enerstvedt
authors.forename: Oyvind M
authors.initials: OM
authors.lastname: Andersen
mesh_terms: D000872:Anthocyanins / Q000032:analysis* / Q000737:chemistry; D002851:Chromatography, High Pressure Liquid; D005638:Fruit / Q000737:chemistry*; D005960:Glucosides / Q000032:analysis* / Q000737:chemistry; D027824:Rosaceae / Q000737:chemistry*
chemical_list: D000872:Anthocyanins; D005960:Glucosides; C562012:cyanidin 3-O-beta-(6''-(3-hydroxy-3-methylglutaroyl)glucoside)