Atividade antioxidante de óleos essenciais de espécies de Croton do nordeste do Brasil

Three Croton species, C. zenhtneri, C. nepetaefolius and C. argyrophylloides, were collected at two different times, 6:00 and 13:00 h, their essential oils were extracted by steam distillation and analyzed by gas Chromatography / Mass Spectrometry. The percentage yield of oil constituents changes al...

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Bibliographic Details
Published in:	Química nova Vol. 29; no. 5; pp. 907 - 910
Main Authors:	Morais, Selene Maia de, Catunda Júnior, Francisco Eduardo Aragão, Silva, Ana Raquel Araújo da, Martins Neto, Jason Stone, Rondina, Davide, Cardoso, José Henrique Leal
Format:	Journal Article
Language:	English
Published:	Sociedade Brasileira de Química 01-10-2006
Subjects:	antioxidant essential oil TBARS test
Online Access:	Get full text
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Summary:	Three Croton species, C. zenhtneri, C. nepetaefolius and C. argyrophylloides, were collected at two different times, 6:00 and 13:00 h, their essential oils were extracted by steam distillation and analyzed by gas Chromatography / Mass Spectrometry. The percentage yield of oil constituents changes along the day. The oils were submitted to the antioxidant test thiobarbituric acid reactive species, using BHT and a-tocoferol as the reference compounds. All oils exhibited good antioxidant activities. In general, C. zenhtneri and C. argyrophylloides essential oils showed higher antioxidant activity than C. nepetaefolius.
ISSN:	0100-4042 1678-7064
DOI:	10.1590/S0100-40422006000500004