Publication: Actividad repelente de formulaciones del aceite esencial de
Melaleuca quinquenervia (Cav.) S.T. Blake (Myrtales:
Myrtaceae) en mosquitos
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Date
2012
Authors
Leyva, Maureen ; Castex, Mayda ; Montada, Domingo ; Quintana, Felipe ; Lezcano, Diosanys ; Marquetti Fernández, María del Carmen ; Companioni, Ariamys ; Anaya, Jorge ; González, Iván
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Publisher
Murcia: Servicio de Publicaciones de la Universidad de Murcia
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Description
Abstract
En este trabajo nos trazamos como objetivo evaluar la actividad repelente
de diferentes formulaciones del aceite de Melaleuca quinquinervia
Cav S.T. Blake en condiciones de laboratorio y terreno.
Se prepararon formulaciones etanólicas, hidroalcohólicas, hidrofílicas
y en base oleosa con aceite mineral y dipropilenglicol. Se trató
el antebrazo con 1 ml de repelente y la mano fue cubierta con un
guante de goma. El antebrazo fue expuesto por 3 minutos cada
media hora. Se obtuvo una tendencia positiva del tiempo de protección
con el aumento de la concentración. El mayor tiempo de
protección observado (5 horas) fue con la cepa Santa Clara y la
formulación de aceite al 20 % en dipropilenglicol Con estos resultados
se evaluó en condiciones de terreno obteniéndose tiempos de
protección promedio de hora y media. El repelente formulado con
dipropilenglicol y aceite de Melaleuca quinquinervia al 20% es adecuado
para las labores del personal dedicado a la protección de
bosques y costas.
The study was carried out in order to evaluate the repellent activity of different formulations of Melaleuca quinquinervia Cav ST Blake oil, in laboratory and field conditions. Ethanolic, hydroalcoholic, and hydrophilic formulations were prepared in mineral oil and dipropylene glycol. In laboratory experiments the forearm was treated with 1ml of the repellent, and exposed against different Aedes aegypti strains by 3 minutes every half hour. The hand was protected or covered with a rubber glove. A positive protection trend was observed when the concentrations of the different formulations were increasing. The higher protection was observed (5 hours) in Aedes aegypti Santa Clara strain with 20% dipropyleneglycol oil formulations. These laboratory results were evaluated then in field conditions, obtaining average protection times of 1 ½ hours.
The study was carried out in order to evaluate the repellent activity of different formulations of Melaleuca quinquinervia Cav ST Blake oil, in laboratory and field conditions. Ethanolic, hydroalcoholic, and hydrophilic formulations were prepared in mineral oil and dipropylene glycol. In laboratory experiments the forearm was treated with 1ml of the repellent, and exposed against different Aedes aegypti strains by 3 minutes every half hour. The hand was protected or covered with a rubber glove. A positive protection trend was observed when the concentrations of the different formulations were increasing. The higher protection was observed (5 hours) in Aedes aegypti Santa Clara strain with 20% dipropyleneglycol oil formulations. These laboratory results were evaluated then in field conditions, obtaining average protection times of 1 ½ hours.
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