Atividade antioxidante de óleos essenciais de espécies de Croton do nordeste do Brasil
oleh: 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: | Article |
|---|---|
| Diterbitkan: | Sociedade Brasileira de Química 2006-01-01 |
Deskripsi
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.