title: A new megastigmane sulphoglycoside and polyphenolic constituents from pericarps of Garcinia mangostana.
abstract: A megastigmane sulphoglycoside together with three phenolic compounds were isolated from the water-soluble fraction of the pericarps of Garcinia mangostana. The structure of the new compound was determined as 4-O-sulpho-β-d-glucopyranosyl abscisate (1) by spectroscopic data. Proanthocyanidin A2 (2) showed potent α-glucosidase inhibitory and DPPH scavenging activities with IC50 values of 3.46 and 11.6 μM, respectively.
authors.affiliation: a School of Chemical Engineering , Hanoi University of Science and Technology , Hanoi , Vietnam.
authors.forename: Thu Huong
authors.initials: TH
authors.lastname: Tran
authors.affiliation: a School of Chemical Engineering , Hanoi University of Science and Technology , Hanoi , Vietnam.
authors.forename: Tram
authors.initials: T
authors.lastname: Le Huyen
authors.affiliation: a School of Chemical Engineering , Hanoi University of Science and Technology , Hanoi , Vietnam.
authors.forename: Thi Minh
authors.initials: TM
authors.lastname: Tran
authors.affiliation: a School of Chemical Engineering , Hanoi University of Science and Technology , Hanoi , Vietnam.
authors.forename: Tuan Anh
authors.initials: TA
authors.lastname: Nguyen
authors.affiliation: b Institute of Marine Biochemistry , Vietnam Academy of Science and Technology , Hanoi , Vietnam.
authors.forename: Thanh Binh
authors.initials: TB
authors.lastname: Pham
authors.affiliation: b Institute of Marine Biochemistry , Vietnam Academy of Science and Technology , Hanoi , Vietnam.
authors.forename: Dat
authors.initials: D
authors.lastname: Nguyen Tien
mesh_terms: D000040:Abscisic Acid / Q000031:analogs & derivatives; D001713:Biphenyl Compounds; D004791:Enzyme Inhibitors / Q000494:pharmacology; D016166:Free Radical Scavengers / Q000494:pharmacology; D005638:Fruit / Q000737:chemistry*; D029760:Garcinia / Q000737:chemistry*; D005960:Glucosides; D009682:Magnetic Resonance Spectroscopy; D045792:Norisoprenoids; D010636:Phenols / Q000737:chemistry / Q000302:isolation & purification; D010851:Picrates; D010936:Plant Extracts / Q000737:chemistry; D021241:Spectrometry, Mass, Electrospray Ionization; D013055:Spectrophotometry, Infrared; D013056:Spectrophotometry, Ultraviolet; D000520:alpha-Glucosidases
chemical_list: C000617283:4-O-sulfo-beta-D-glucopyranosyl abscisate; D001713:Biphenyl Compounds; D004791:Enzyme Inhibitors; D016166:Free Radical Scavengers; D005960:Glucosides; D045792:Norisoprenoids; D010636:Phenols; D010851:Picrates; D010936:Plant Extracts; D000040:Abscisic Acid; C004931:1,1-diphenyl-2-picrylhydrazyl; D000520:alpha-Glucosidases
keywords: DPPH; Garcinia mangostana; megastigmane sulphoglycoside; proanthocyanidin A2; α-glucosidase