Carapa guianensis Aubl. (Meliaceae) oil associated with silk fibroin, as alternative to traditional surfactants, and active against larvae of the vector Aedes aegypti

•The Carapa guianensis oils with differences in lipid and physicochemical properties.•Preparation of emulsion from C. guianensis oil associate with silk fibroin solution.•The emulsions of C. guianensis using silk fibroin showed high activity against larvae of Aedes aegypti.•The biopolymeric matrix of silk fibroin increases the biodistribution and bioavailability of active in medium aqueous.