title: NMR characterization of novel pyranoanthocyanins derived from the pulp of Panax quinquefolius L. (North American ginseng).
abstract: Three major pigments (one natural and two derived) were determined to be present in the berry pulp of Panax quinquefolius L. (North American ginseng). The first was a simple anthocyanin (pelargonidin 3-O-lathyroside) along with two novel pyranoanthocyanins, structurally similar to those recently discovered in Staghorn sumac. The three anthocyanins were structurally characterized using NMR (1H, gCOSY, gHSQC, gHMBC, TOCSY, ROESY, and13C DEPTq135) and High Resolution MS. All three anthocyanins had the disaccharide lathyrose (2-O-(β-D-xylopyranosyl)-β-D-galactopyranoside) attached at the 3-O position. In the tradition of naming novel anthocyanin aglycones based on botanical origin, the new pyranoanthocyanin aglycones have been given the common names Panaxidin A (pelaragonidin-4-vinylcatechol) and Panaxidin B (pelargonidin-4-vinylphenol). Copyright © 2015 Her Majesty the Queen in Right of Canada Magnetic Resonance in Chemistry © 2015 John Wiley & Sons, Ltd.
authors.affiliation: Crops and Livestock Research Centre, Agriculture and Agri-Food Canada, 550 University Avenue, Charlottetown, Prince Edward Island, C1A 4P3, Canada.|Department of Chemistry, University of Prince Edward Island, 550 University Avenue, Charlottetown, Prince Edward Island, C1A 4P3, Canada.
authors.forename: Mark H
authors.initials: MH
authors.lastname: Nabuurs
authors.affiliation: Crops and Livestock Research Centre, Agriculture and Agri-Food Canada, 550 University Avenue, Charlottetown, Prince Edward Island, C1A 4P3, Canada.|Department of Biology, University of Prince Edward Island, 550 University Avenue, Charlottetown, Prince Edward Island, C1A 4P3, Canada.
authors.forename: Jason L
authors.initials: JL
authors.lastname: McCallum
authors.affiliation: Canadian Centre of Agri-Food Research in Health and Medicine, Agriculture and Agri-Food Canada, St. Boniface Hospital, 351 Tache Avenue, Winnipeg, Manitoba, R2H 2A6, Canada.
authors.forename: Daniel C
authors.initials: DC
authors.lastname: Brown
authors.affiliation: Crops and Livestock Research Centre, Agriculture and Agri-Food Canada, 550 University Avenue, Charlottetown, Prince Edward Island, C1A 4P3, Canada.|Department of Chemistry, University of Prince Edward Island, 550 University Avenue, Charlottetown, Prince Edward Island, C1A 4P3, Canada.
authors.forename: Christopher W
authors.initials: CW
authors.lastname: Kirby
mesh_terms: D000872:Anthocyanins / Q000737:chemistry*; D002851:Chromatography, High Pressure Liquid; D005638:Fruit / Q000737:chemistry; D009682:Magnetic Resonance Spectroscopy; D015394:Molecular Structure; D005894:Panax / Q000737:chemistry*; D010936:Plant Extracts / Q000737:chemistry*; D021241:Spectrometry, Mass, Electrospray Ionization
chemical_list: D000872:Anthocyanins; D010936:Plant Extracts
keywords: NMR spectroscopy; North American ginseng; Panax quinquefolius L; anthocyanin; anthocyanin-derived pigments; pyranoanthocyanin