Structural identification of two major anthocyanin components of boysenberry by NMR spectroscopy.
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].
McGhie
Tony K
TK
The Horticulture and Food Research Institute of New Zealand Ltd, Private Bag 11030, Palmerston North, New Zealand. tmcghie@hortresearch.co.nz
Rowan
Daryl R
DR
Edwards
Pat J
PJ
D000872:Anthocyanins / Q000737:chemistry* / Q000302:isolation & purification; D002851:Chromatography, High Pressure Liquid; D005638:Fruit / Q000737:chemistry*; D015394:Molecular Structure; D019906:Nuclear Magnetic Resonance, Biomolecular
D000872:Anthocyanins