title: Occurrence of antioxidant and radical scavenging proanthocyanidins from the Indian minor spice nagkesar (Mammea longifolia planch and triana syn).
abstract: Nagkesar (buds of Mammea longifolia) is extensively used in culinary preparations especially in spice blend in India. Previously thirteen compounds were identified from the medium polar fractions of methanol extract of buds of M. longifolia. In continuation of the study, the polar fraction of methanol extract exhibited stronger antioxidative and radical scavenging activities. An attempt was made to separate and identify the active compounds and found that those were proanthocyanidin oligomers with mean degree of polymerisation ranges from 2 to 10. This is the first report to indicate that Mammea buds contain antioxidant and radical scavenging procyanidin oligomers.
authors.affiliation: National Food Research Institute, 2-1-12, Kannondai, Tsukuba, 305-8642, Ibaraki, Japan. ljnatpro@yahoo.com
authors.forename: Lingamallu Jagan Mohan
authors.initials: LJ
authors.lastname: Rao
authors.forename: Hiroshi
authors.initials: H
authors.lastname: Yada
authors.forename: Hiroshi
authors.initials: H
authors.lastname: Ono
authors.forename: Mayumi
authors.initials: M
authors.lastname: Ohnishi-Kameyama
authors.forename: Mitsuru
authors.initials: M
authors.lastname: Yoshida
mesh_terms: D000975:Antioxidants / Q000737:chemistry / Q000302:isolation & purification*; D016166:Free Radical Scavengers / Q000737:chemistry / Q000302:isolation & purification*; D007194:India; D031252:Mammea; D035261:Plant Components, Aerial; D010936:Plant Extracts / Q000737:chemistry / Q000302:isolation & purification; D044945:Proanthocyanidins / Q000737:chemistry / Q000302:isolation & purification*; D017365:Spices
chemical_list: D000975:Antioxidants; D016166:Free Radical Scavengers; D010936:Plant Extracts; D044945:Proanthocyanidins