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Bol. latinoam. Caribe plantas med. aromát ; 13(6): 537-544, nov.2014. ilus, tab
Article in Spanish | LILACS | ID: lil-795824

ABSTRACT

Dermotophagoides farinae lives in the indoor environment of houses, where it is source of allergens; therefore its control is a priority in preventing respiratory allergies. The aim of this study was to evaluate the acaricidal activity of essential oil of Croton malambo H. Karst bark and their components methyl-eugenol and methyl-isoeugenol against Dermatophagoides farinae. The essential oil was obtained through hydro-distillation assisted by microwave radiation and analyzed by GC-MS. Acaricidal activity was assessed by dose- response bioassay, at different times, using benzyl benzoate as a positive control. The relative amount of methyl-eugenol and methyl- isoeugenol in the essential oil was 68.4 percent and 4.9 percent, respectively. The acaricidal activity was: essential oil > methyl-eugenol > benzyl benzoate > methyl-isoeugenol. The acaricidal properties of essential oil of Croton malambo bark and methyl-eugenol against Dermatophagoides farinae were established...


Dermatophagoides farinae habita en el interior de las casas, donde es fuente importante de alérgenos, por tanto su control es una prioridad en la prevención de alergias respiratoria. El objetivo de este estudio fue evaluar la actividad acaricida del aceite esencial de la corteza de Croton malambo H. Karst y sus componentes metil-eugenol y metil-isoeugenol contra Dermatophagoides farinae. El aceite esencial se obtuvo por hidrodestilación asistida por radiación de microondas y se analizó por CG-EM. La actividad acaricida se evaluó mediante bioensayo de dosis-respuesta a diferentes tiempos, usando benzoato de bencilo como control. La cantidad relativa de metil-eugenol y metil-isoeugenol en el aceite fue 68.4 por ciento y 4.9 por ciento, respectivamente. La actividad acaricida fue: aceite esencial > metil-eugenol > benzoato de bencilo > metil-isoeugenol. Se establecieron las propiedades acaricidas del aceite esencial de la corteza de Croton malambo y metil-eugenol contra Dermatophagoides farinae...


Subject(s)
Humans , Acaricides/pharmacology , Oils, Volatile/pharmacology , Croton/chemistry , Dermatophagoides farinae , Plant Extracts/pharmacology , Anisoles/analysis , Plant Bark/chemistry , Eugenol/analysis , Eugenol/analogs & derivatives , Gas Chromatography-Mass Spectrometry
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