| Revista: | Quimica nova |
| Base de datos: | PERIÓDICA |
| Número de sistema: | 000313156 |
| ISSN: | 0100-4042 |
| Autors: | Moura, Juliana Maria Leite Nóbrega de1 Goncalves, Lireny Aparecida Guaraldo Grimaldi, Renato Soares, Marinalda da Silva Ribeiro, Ana Paula Badan |
| Institucions: | 1Universidade Estadual de Campinas, Faculdade de Engenharia de Alimentos, Campinas, Sao Paulo. Brasil |
| Any: | 2006 |
| Període: | Sep |
| Volum: | 29 |
| Número: | 5 |
| Paginació: | 956-959 |
| País: | Brasil |
| Idioma: | Portugués |
| Tipo de documento: | Artículo |
| Enfoque: | Experimental, aplicado |
| Resumen en inglés | The production of ethyl esters by alcoholysis is an alternative for splitting triacylglycerols due to the possibility of using low temperatures, which results in oxidative protection of the polyunsaturated fatty acids. Ethyl esters produced under mild conditions of temperature could be used as substrate for obtaining structured lipids. The reaction parameters of production of ethyl esters from fish oil with high content of omega-3 fatty acids by alcoholysis were optimized using response surface methodology. An experimental design (2³) (with levels +1 and -1, six axial points with levels -alpha and +alpha and three central points) was applied. The variables investigated were concentration of catalyst, amount of ethyl alcohol and temperature. Ethyl ester conversion was monitored by high performance size exclusion chromatography (HPSEC) and the best result obtained was 95% conversion rate. The optimal conditions were 40 °C, 1% of NaOH and 36% of ethanol |
| Disciplines | Química |
| Paraules clau: | Química de alimentos, Aceite de pescado, Alcohólisis, Etil éster, Cromatografía de alta resolución por exclusión de tamaño |
| Keyword: | Chemistry, Food chemistry, Fish oil, Alcoholysis, Ethyl ester, High performance size exclusion chromatography |
| Text complet: | Texto completo (Ver HTML) |
