Atividade antioxidante de óleos essenciais de espécies de Croton do nordeste do Brasil
| Autor: | Morais Selene Maia de, Catunda Júnior Francisco Eduardo Aragão, Silva Ana Raquel Araújo da, Martins Neto Jason Stone, Rondina Davide, Cardoso José Henrique Leal |
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| Jazyk: | English<br />Spanish; Castilian<br />Portuguese |
| Rok vydání: | 2006 |
| Předmět: | |
| Zdroj: | Química Nova, Vol 29, Iss 5, Pp 907-910 (2006) |
| Druh dokumentu: | article |
| ISSN: | 0100-4042 1678-7064 |
| Popis: | 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. |
| Databáze: | Directory of Open Access Journals |
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