title: Structural identification of two major anthocyanin components of boysenberry by NMR spectroscopy.
abstract: The major anthocyanins of boysenberry fruit, a cross between Rubus loganbaccus and Rubus baileyanus Britt., were isolated by preparative high-performance liquid chromatography (HPLC). The structures of cyanidin-3-[2-(glucosyl)glucoside] (1) and cyanidin-3-[2-(glucosyl)-6-(rhamnosyl)glucoside] (2) were determined by NMR in 1% DCOOD/D(2)O. An unusually high chemical shift (delta 2.5) is reported for H-5' '' of cyanidin-3-[2-(glucosyl)glucoside].
authors.affiliation: The Horticulture and Food Research Institute of New Zealand Ltd, Private Bag 11030, Palmerston North, New Zealand. tmcghie@hortresearch.co.nz
authors.forename: Tony K
authors.initials: TK
authors.lastname: McGhie
authors.forename: Daryl R
authors.initials: DR
authors.lastname: Rowan
authors.forename: Pat J
authors.initials: PJ
authors.lastname: Edwards
mesh_terms: D000872:Anthocyanins / Q000737:chemistry* / Q000302:isolation & purification; D002851:Chromatography, High Pressure Liquid; D005638:Fruit / Q000737:chemistry*; D015394:Molecular Structure; D019906:Nuclear Magnetic Resonance, Biomolecular
chemical_list: D000872:Anthocyanins