| Texto completo | |
| Autor(es): |
Costa-Silva, T. A.
[1]
;
Carvalho, A. K. F.
[2]
;
Souza, C. R. F.
[1]
;
De Castro, H. F.
[2]
;
Said, S.
[1]
;
Oliveira, W. P.
[1]
Número total de Autores: 6
|
| Afiliação do(s) autor(es): | [1] Univ Sao Paulo, Sch Pharmaceut Sci Ribeirao Preto, Lab Pharmaceut Proc LAPROFAR, BR-14049 Ribeirao Preto - Brazil
[2] Univ Sao Paulo, Engn Sch Lorena, Sao Paulo - Brazil
Número total de Afiliações: 2
|
| Tipo de documento: | Artigo Científico |
| Fonte: | ENERGY & FUELS; v. 30, n. 6, p. 4820-4824, JUN 2016. |
| Citações Web of Science: | 4 |
| Resumo | |
In this work was produced an immobilized biocatalyst from Cercospora kikuchii lipase with beneficial catalytic activity and stability. The immobilized derivative was used in the ethanolysis of coconut oil. This is a great option for the Brazilian renewable fuel production, because both coconut oil and ethanol are promptly available in the country, at a reasonably low cost. For this, lipase was immobilized on rice husk (5.5 mg(protein) g(support)(-1)) by covalent binding using spouted bed drying (gas flow rate, 0.66 m(3) min(-1); temperature, 100 degrees C; and solution flow rate, 5.5 g min(-1)). In a typical batch run, the immobilized derivative was added at a vegetable oil/ethanol molar ratio of 1:12 using tert-butanol as the solvent. The feasibility of immobilization and drying processes was demonstrated toward biodiesel production, attaining a high ester content (97.1%) and low levels of acylglycerides (0.9%) after 72 h. Further properties, such as viscosity (4.56 mm cm(-2)) and density (888 kg m(-3)), are in agreement with specifications required by the ASTM D6751 to be used as alternative biofuel. (AU) | |
| Processo FAPESP: | 11/00743-8 - Produção e imobilização de lipases produzidas pelo fungo endofítico Cercospora kikuchii para aplicações biotecnológicas |
| Beneficiário: | Tales Alexandre da Costa e Silva |
| Modalidade de apoio: | Bolsas no Brasil - Doutorado |