Chemical composition and larvicidal activity of essential oils from Piper species

The larvicidal activity of essential oils of four species of Piper from the Amazon Forest was tested using third-instar larvae of Aedes aegypti. The oils were extracted by steam distillation and analyzed by GC and GC–MS. The main components isolated from each Piper species were as follows: viridiflo...

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Veröffentlicht in:Biochemical systematics and ecology 2007-10, Vol.35 (10), p.670-675
Hauptverfasser: de Morais, Selene Maia, Facundo, Valdir Alves, Bertini, Luciana Medeiros, Cavalcanti, Eveline Solon Barreira, Anjos Júnior, João Francisco dos, Ferreira, Silane Aparecida, de Brito, Edy Sousa, de Souza Neto, Manoel Alves
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Sprache:eng
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Zusammenfassung:The larvicidal activity of essential oils of four species of Piper from the Amazon Forest was tested using third-instar larvae of Aedes aegypti. The oils were extracted by steam distillation and analyzed by GC and GC–MS. The main components isolated from each Piper species were as follows: viridiflorol (27.50%), aromadendrene (15.55%) and β-selinene (10.50%) from Piper gaudichaudianum; β-selinene (15.77%) and caryophyllene oxide (16.63%) from Piper humaytanum; dillapiol (54.70%) and myristicin (25.61%) from Piper permucronatum; and asaricin (27.37%) and myristicin (20.26%) from Piper hostmanianum. Amongst all essential oils tested, the most active against larvae of A. aegypti was the oil extracted from P. permucronatum, with a LC 50 = 36 μg/ml (LC 90 = 47 μg/ml), followed by the essential oil of P. hostmanianum, with a LC 50 = 54 μg/ml (LC 90 = 72 μg/ml). The oils with higher content of arylpropanoids were more active against larvae of A. aegypti.
ISSN:0305-1978
1873-2925
DOI:10.1016/j.bse.2007.05.002