title: Antioxidant capacity of abietanes from Sphacele salviae.
abstract: Carnosol 1, rosmanol 2, carnosic acid 3 and 20-deoxocarnosol 4, the main phenolic abietanes present in aerial parts of the Chilean medicinal plant Sphacele salviae were tested for antioxidant activity of measuring the decay of the radical cation diphenyl-picrylhydrazyl (DPPH). All compounds displayed higher antioxidant levels than BHT under the same conditions and carnosic acid was more efficient than vitamin E.
authors.affiliation: Departamento de Ciencias del Ambiente, Facultad de Química y Biología, Universidad de Santiago de Chile.
authors.forename: Beatriz
authors.initials: B
authors.lastname: Escuder
authors.forename: Rene
authors.initials: R
authors.lastname: Torres
authors.forename: Eduardo
authors.initials: E
authors.lastname: Lissi
authors.forename: Cecilia
authors.initials: C
authors.lastname: Labbé
authors.forename: Francesca
authors.initials: F
authors.lastname: Faini
mesh_terms: D045784:Abietanes; D000975:Antioxidants / Q000737:chemistry / Q000302:isolation & purification / Q000494:pharmacology*; D001713:Biphenyl Compounds; D002084:Butylated Hydroxytoluene / Q000494:pharmacology; D002677:Chile; D004224:Diterpenes / Q000737:chemistry / Q000302:isolation & purification / Q000494:pharmacology*; D004305:Dose-Response Relationship, Drug; D019686:Lamiaceae / Q000737:chemistry*; D008519:Medicine, Traditional; D010616:Phenanthrenes / Q000737:chemistry / Q000302:isolation & purification / Q000494:pharmacology*; D010851:Picrates / Q000494:pharmacology; D010936:Plant Extracts / Q000737:chemistry / Q000302:isolation & purification / Q000494:pharmacology*; D018515:Plant Leaves / Q000737:chemistry; D010946:Plants, Medicinal / Q000737:chemistry*; D013329:Structure-Activity Relationship; D013997:Time Factors; D014810:Vitamin E
chemical_list: C469887:20-deoxocarnosol; D045784:Abietanes; D000975:Antioxidants; D001713:Biphenyl Compounds; D004224:Diterpenes; D010616:Phenanthrenes; D010851:Picrates; D010936:Plant Extracts; D014810:Vitamin E; D002084:Butylated Hydroxytoluene; C068623:carnosol; C004931:1,1-diphenyl-2-picrylhydrazyl; C465581:rosmanol; C018381:salvin