Essential oil from Pterodon emarginatus as a promising natural raw material for larvicidal nanoemulsions against a tropical disease vector

Abstract:

The oleoresin obtained from fruits of Pterodon emarginatus was previously subjected to development of larvicidal nanoemulsions. To our knowledge, no efforts aiming at developing nanoemulsions with the essential oil from this species were carried out. This study describes the preparation and evaluation of the larvicidal activity of a novel oil in water nanoemulsion prepared with essential oil from fruits of P. emarginatus against Aedes aegypti larvae. β-caryophyllene is the major compound, corresponding to 25.8% of relative percentage of the essential oil. A series of nanoemulsions were obtained and better physical results were achieved using polysorbate 80, suggesting that a required Hydrophile-Lipophile balance value of this oil is around 15. Mean droplet size decreased from 128.0 ± 6.2 nm to 53.2 ± 0.5 nm, when surfactant to oil ratio increased from 1.0 to 2.0. The nanoemulsion prepared with P. emarginatus …

Año de publicación:

2017

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Fuente:

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