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Molecules 2009, 14(11), 4625-4633; doi:10.3390/molecules14114625

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

1
Departamento de Ciencias del Ambiente, Facultad de Química y Biología, Universidad de Santiago de Chile, Santiago, Chile
2
U. I&D Materiais Textêis e do Papel, Departamento de Química, Universidade da Beira Interior, 6201-001 Covilhã, Portugal
*
Author to whom correspondence should be addressed.
Received: 28 August 2009 / Revised: 31 October 2009 / Accepted: 11 November 2009 / Published: 12 November 2009
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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).
Keywords: Heliotropium sclerocarpum; flavonoids; 2-arylbenzofuran; geranyl derivative; antioxidant capacity; resinous exudate Heliotropium sclerocarpum; flavonoids; 2-arylbenzofuran; geranyl derivative; antioxidant capacity; resinous exudate
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MDPI and ACS Style

Modak, B.; Salina, M.; Rodilla, J.; Torres, R. 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. Molecules 2009, 14, 4625-4633.

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