title: (S)- and (R)-eriodictyol-6-C-beta-D-glucopyranoside, novel keys to the fermentation of rooibos (Aspalathus linearis).
abstract: The processed leaves and stems of Aspalathus linearis contain a new diastereomeric pair of the flavanones, (S)- and (R)-eriodictyol-6-C-beta-D-glucopyranoside, which is also formed via the oxidative cyclization of the dihydrochalcone, aspalathin, under conditions which mimic the fermentation process.
authors.affiliation: Department of Chemistry, University of the Orange Free State, Bloemfontein, South Africa. maraisc@frm.uovs.ac.za
authors.forename: C
authors.initials: C
authors.lastname: Marais
authors.forename: W J
authors.initials: WJ
authors.lastname: van Rensburg
authors.forename: D
authors.initials: D
authors.lastname: Ferreira
authors.forename: J A
authors.initials: JA
authors.lastname: Steenkamp
mesh_terms: D007887:Fabaceae / Q000378:metabolism*; D005285:Fermentation; D044950:Flavanones; D005419:Flavonoids / Q000737:chemistry / Q000378:metabolism*; D005960:Glucosides / Q000737:chemistry / Q000378:metabolism*; D009682:Magnetic Resonance Spectroscopy; D013058:Mass Spectrometry; D015394:Molecular Structure; D010946:Plants, Medicinal; D013237:Stereoisomerism
chemical_list: D044950:Flavanones; D005419:Flavonoids; D005960:Glucosides; C419352:eriodictyol-6-C-glucopyranoside