bachelorThesis
Esterificação via enzimática
Fecha
2016-12-12Registro en:
FRANCESCON, Jeane Elisa. Esterificação via enzimática. 2016. 58 f. Trabalho de Conclusão de Curso (Bacharelado em Química) - Universidade Tecnológica Federal do Paraná, Curitiba, 2016.
Autor
Francescon, Jeane Elisa
Resumen
Fusel oil is part of the by-products of alcoholic plants, it is composed of the mixture of higher alcohols obtained in various phases of the alcoholic fermentation process, being mainly composed of isoamyl and isobutyl alcohols. The production of alcohol in Brazil is very large, consequently a large amount of fusel oil is produced as well. The production of fusel oil reached 70 million liters only in 2014/15. Some industries aim it for sale, but for most the destination still the discard. This opens up an opportunity to use and reaserch. Esters of fusel oil, produced by enzymatic esterification with oleic acid can be used as a lubricant of vegetable origin. Lubricants, consisting of basic oils and additives, are widely used substances that have the function of reducing friction, cooling and keeping clean moving components of engines and equipment. The use of enzymes as catalysts has been very exploited in recent years, due to its advantages over conventional catalysts, such as its high specificity, control in the formation of by-products and by operating under mild conditions of temperature and pressure. One class of enzymes are lipases, which are widely used to catalyze esterification reactions. For the study of the esterification of fusel oil with oleic acid, twelve enzyme samples were used, where the best result was obtained using the enzyme lipoprotein Pseudomonass sp. The esterification product with this enzyme, having as substrates oleic acid and isoamyl alcohol, was analyzed by ATR-FTIR and compared to the standard spectrum of isoamyl oleate.