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Type: Artigo de periódico
Title: Chemical Composition And Biological Activity Of Natural Extracts Obtained From A Brazilian Aromatic Plant (aloysia Gratissima) By Supercritical Co 2 And Hydrodistillation
Author: Silva D.C.M.N.
Meireles M.A.A.
Brat P.
Magalhaes P.M.
Menut C.
Abstract: Aloysia gratissima (Gillies & Hook.) Tronc. (Verbenaceae) is an aromatic shrub native to South America which is widely used in traditional medicine to treat several diseases. In this study we report on the chemical composition and biological activity (anti-inflammatory and antioxidant activity) of extracts obtained from the aerial parts of the Brazilian plant Aloysia gratissima using two extraction methods: hydrodistillation and extraction with supercritical carbon dioxide. Three major components were identified in the essential oil, namely trans-pinocamphone (13.5-16.3%), β-pinene (10.5-12.0%) and α-guaiol (6.6-8.7%), whereas the major compounds were guaiol (16.7%), β-caryophyllene (9.2%) and germacrene D (8.6%) in the supercritical fluid (SFE) extract. None of the two samples presented a significant inhibitory effect in vitro on soybean 5-lipoxygenase.The antioxidant activity using both the 1,1-diphenyl-2-picrylhydrazyl (DPPH) and ORAC assays showed poor activity. © Essential Oil Resource Consultants. All rights reserved.
Rights: fechado
Identifier DOI: 
Date Issue: 2007
Appears in Collections:Unicamp - Artigos e Outros Documentos

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