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Type: Artigo de periódico
Title: Avaliação do potencial antioxidante de extratos ativos de plantas obtidos por extração com fluido supercrítico
Title Alternative: Evaluation of the antioxidant potential of plant extracts obtained by supercritical fluid extraction
Author: Justo, Oselys Rodriguez
Moraes, Ângela Maria
Barreto, Gisela Pizarro de Mattos
Mercadante, Adriana Zerlotti
Rosa, Paulo de Tarso Vieira e
Abstract: The aim of this work was to evaluate the antioxidant properties of ginger and rosemary extracts, obtained by supercritical extraction. The extracts were characterized by HPLC, GC-MS, phenolic compounds content and antioxidant activity. The main active compounds were identified and high content of phenolic compounds was observed. The extracts presented high antioxidant activity against the free radicals ABTS + (350 and 200 mM Trolox/g, for ginger and rosemary, respectively) and DPPH + (145 and 80 mM Trolox/g, for ginger and rosemary, respectively). These results suggested that the attained extracts are potential substitutes of synthetic antioxidants used in chemical, food and pharmaceutical industries.
Subject: active plant extracts
supercritical fluid extraction
antioxidant activity
Editor: Sociedade Brasileira de Química
Citation: Química Nova. Sociedade Brasileira de Química, v. 31, n. 7, p. 1699-1705, 2008.
Rights: aberto
Identifier DOI: 10.1590/S0100-40422008000700019
Date Issue: 1-Jan-2008
Appears in Collections:Unicamp - Artigos e Outros Documentos

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