| Texto completo | |
| Autor(es): |
Barbosa, Fernanda Goncalves
;
Marcelino, Paulo Ricardo Franco
;
Lacerda, Talita Martins
;
Philippini, Rafael Rodrigues
;
Giancaterino, Emma Teresa
;
Mancebo, Marcos Campos
;
dos Santos, Julio Cesar
;
da Silva, Silvio Silverio
Número total de Autores: 8
|
| Tipo de documento: | Artigo Científico |
| Fonte: | FERMENTATION-BASEL; v. 8, n. 11, p. 21-pg., 2022-11-01. |
| Resumo | |
Biosurfactants are amphipathic molecules, biodegradable, with reduced toxicity. They can be synthesized by fermentative processes from oleaginous compounds and agro-industrial by-products. In this context, the present study describes the production and the physical, chemical, and structural characterization of the bioemulsifier secreted by the yeast Scheffersomyces shehatae 16-BR6-2AI in a medium containing hemicellulosic sugarcane bagasse hydrolysate combined with soybean oil. The bioemulsifier was produced in Erlenmeyer flasks and isolated; then, the physicochemical and structural characterization of the formed molecule was carried out. The following fermentation parameters were obtained: Y-X/S = 0.45, Y-P/S = 0.083, and productivity of 0.076 g/L/h. The bioemulsifier was found to be a polymer containing 53% of carbohydrates, 40.92% of proteins, and 6.08% of lipids, respectively. The FTIR spectrum confirmed the presence of functional groups such as amides, amines, and carbonyls. The bioemulsifier was stable over a range of temperature (-20 degrees C to 120 degrees C), salinity (1-15%), and pH (2-12). It was observed that the biomolecule has a better emulsifying action in organic solvents with a non-polar character. Therefore, this biomolecule is a potential substitute for synthetic surfactants and can be used in different applications. (AU) | |
| Processo FAPESP: | 16/10636-8 - Da fábrica celular à biorrefinaria integrada Biodiesel-Bioetanol: uma abordagem sistêmica aplicada a problemas complexos em micro e macroescalas |
| Beneficiário: | Roberto de Campos Giordano |
| Modalidade de apoio: | Auxílio à Pesquisa - Programa BIOEN - Temático |
| Processo FAPESP: | 16/14852-7 - Uma solução sustentável contra doenças tropicais negligenciadas utilizando biossurfactantes produzidos por leveduras em hidrolisado hemicelulósico de bagaço de cana-de-açúcar |
| Beneficiário: | Paulo Ricardo Franco Marcelino |
| Modalidade de apoio: | Bolsas no Brasil - Pós-Doutorado |