title: Study of the chemical composition of the resinous exudate isolated from Heliotropium sclerocarpum and evaluation of the antioxidant properties of the phenolic compounds and the resin.
abstract: Heliotropium sclerocarpum Phil. (Heliotropiaceae) is a resinous bush that grows in the Atacama of northern Chile. The chemical composition of its resinous exudate was analyzed for the first time. One aromatic geranyl derivative: filifolinol (1), one flavanone: naringenin (2) and a new type of 3-oxo-2-arylbenzofuran derivative 3 were isolated and their structures were determined. The antioxidant activity of the phenolic compounds and resin was evaluated using the bleaching of DPPH radical method and expressed as fast reacting equivalents (FRE) and total reacting equivalents (TRE).
authors.affiliation: Departamento de Ciencias del Ambiente, Facultad de Química y Biología, Universidad de Santiago de Chile, Santiago, Chile. brenda.modak@usach.cl
authors.forename: Brenda
authors.initials: B
authors.lastname: Modak
authors.forename: Melissa
authors.initials: M
authors.lastname: Salina
authors.forename: Jesús
authors.initials: J
authors.lastname: Rodilla
authors.forename: René
authors.initials: R
authors.lastname: Torres
mesh_terms: D000975:Antioxidants / Q000737:chemistry*; D044950:Flavanones / Q000737:chemistry; D028162:Heliotropium / Q000737:chemistry*; D009682:Magnetic Resonance Spectroscopy; D015394:Molecular Structure; D010636:Phenols / Q000737:chemistry*; D012116:Resins, Plant / Q000737:chemistry*
chemical_list: D000975:Antioxidants; D044950:Flavanones; D010636:Phenols; D012116:Resins, Plant; C005273:naringenin