ALVES, F. R. S.; SILVA ALVES, FÁBIA RAFAELLA.; RAFAELLA SILVA ALVES, FÁBIA.; http://lattes.cnpq.br/4939875215993291; ALVES, Fábia Rafaella Silva.
Résumé:
The environmental impacts resulting from the dumping of waste into the environment, such as oil
waste from frying, generates the need for alternatives for recycling these materials-
cousins. Transesterification is a process through which the characteristics of
of this residue, generating a product of a more hydrophilic nature, enabling its use in
production of pharmaceutical forms such as emulsions. Therefore, the present study proposed the
transesterification of waste frying oils for application in a system
microemulsified. Initially, the standardization of the transesterification method was carried out
observing the best condition to be applied to the residual frying oil. Of the methods
tested, the reflux system showed better separation and formation of the product, being
used for the transesterification of residual oil with vanillic alcohol. The production of
emulsions was carried out by obtaining the HLE (Hydrophilic-Lipophilic Balance) required
by transesterified oil, which was carried out experimentally, with pilot tests being prepared
emulsions with different concentrations of water, transesterified oil and a mixture of two
surfactants LABRAFIL® M1944CS and Sodium Lauryl Ether Sulfate (LESS) 27%. A
transesterification of the residual oil with vanyl alcohol was viable, demonstrating separation of
phases and the formation of the intended product. For the production of the microemulsion, it was found that
the best results were obtained when the surfactant proportion increased to 87%
and the amount of water and oil decreased to 10% and 3%, respectively, obtaining, in the end,
a transparent system with total emulsification of the oil phase. Therefore, the impact of this
research is evidenced by the feasibility of using residual frying oil in
emulsions, as they generate a value-added, sustainable product with different functions.
