title: Isolation and structure elucidation of flavonoid and phenolic acid glycosides from pericarp of hot pepper fruit Capsicum annuum L.
abstract: Hot pepper fruits (Capsicum annuum L.) var. Bronowicka Ostra have been studied with regard to content of flavonoids and other phenolics. Nine compounds were isolated from pericarp of pepper fruits by preparative HPLC. Their structures were identified by chromatographic (analytical HPLC) and spectroscopic (UV, NMR) techniques. Two of the identified compounds, trans-p-ferulylalcohol-4-O-(6-(2-methyl-3-hydroxypropionyl) glucopyranoside and luteolin-7-O-(2-apiofuranosyl-4-glucopyranosyl-6-malonyl)-glucopyranoside were found for the first time in the plant kingdom. Additionally compounds: trans-p-feruloyl-beta-D-glucopyranoside, trans-p-sinapoyl-beta- D-glucopyranoside, quercetin 3-O-alpha-L-rhamnopyranoside-7-O-beta-D-glucopyranoside, luteolin 6-C-beta-D-glucopyranoside-8-C-alpha-L-arabinopyranoside, apigenin 6-C-beta-D-glucopyranoside-8-C-alpha-L-arabinopyranoside and luteolin 7-O-[2-(beta-D-apiofuranosyl)-beta-D-glucopyranoside] were found for the first time in pepper fruit Capsicum annuum L.
authors.affiliation: Agricultural University, Department of Chemistry, ul. Akademicka 15, 20-950 Lublin, Poland. mpalka@agros.ar.lublin.pl
authors.forename: Malgorzata
authors.initials: M
authors.lastname: Materska
authors.forename: Sonia
authors.initials: S
authors.lastname: Piacente
authors.forename: Anna
authors.initials: A
authors.lastname: Stochmal
authors.forename: Cosimo
authors.initials: C
authors.lastname: Pizza
authors.forename: Wieslaw
authors.initials: W
authors.lastname: Oleszek
authors.forename: Irena
authors.initials: I
authors.lastname: Perucka
mesh_terms: D002212:Capsicum / Q000737:chemistry*; D002851:Chromatography, High Pressure Liquid; D005419:Flavonoids / Q000737:chemistry* / Q000302:isolation & purification; D005638:Fruit / Q000737:chemistry*; D006027:Glycosides / Q000737:chemistry* / Q000302:isolation & purification*; D062385:Hydroxybenzoates / Q000737:chemistry* / Q000302:isolation & purification; D009682:Magnetic Resonance Spectroscopy; D015394:Molecular Structure; D013056:Spectrophotometry, Ultraviolet
chemical_list: D005419:Flavonoids; D006027:Glycosides; D062385:Hydroxybenzoates; C017616:phenolic acid