| Texto completo | |
| Autor(es): |
Moretti, Marcia M. S.
[1]
;
Bocchini-Martins, Daniela A.
[2]
;
Da Silva, Roberto
[1]
;
Rodrigues, Andre
[3]
;
Sette, Lara D.
[3]
;
Gomes, Eleni
[1]
Número total de Autores: 6
|
| Afiliação do(s) autor(es): | [1] Univ Estadual Paulista, Lab Bioquim & Microbiol Aplicada, Sao Jose Do Rio Preto, SP - Brazil
[2] Univ Estadual Paulista, Dept Bioquim, Araraquara, SP - Brazil
[3] Univ Estadual Paulista, Dept Bioquim & Microbiol, Rio Claro, SP - Brazil
Número total de Afiliações: 3
|
| Tipo de documento: | Artigo Científico |
| Fonte: | Brazilian Journal of Microbiology; v. 43, n. 3, p. 1062-1071, JUL-SEP 2012. |
| Citações Web of Science: | 44 |
| Assunto(s): | Celulase Endo-1,4-beta-xilanases Fungos termófilos Fermentação |
| Resumo | |
Twenty-seven thermophilic and thermotolerant fungal strains were isolated from soil, decaying organic matter and sugarcane piles based on their ability to grow at 45 degrees C on medium containing corn straw and cardboard as carbon sources. These fungi were identified in the genera Aspergillus, Thermomyces, Myceliophthora, Thermomucor and Candida. The majority of the isolated strains produced xylanase and cellulases under solid state fermentation (SSF). The highest cellulase and xylanase productions were obtained by the cultivation of the strains identified as Aspergillus fumigatus M.7.1 and Myceliophthora thermophila M.7.7. The enzymes from these strains exhibited maximum activity at pH 5.0 and at 60 and 70 degrees C. The endo-glucanase from A. fumigatus was stable from 40 degrees C to 65 degrees C and both endo-glucanase and xylanase from M. thermophila were stable in this temperature range when in absence of substrate. The enzymes were stable from pH 4.0 to 9.0. (AU) | |
| Processo FAPESP: | 10/12624-0 - Aplicação de métodos físico-químicos e enzimáticos na sacarificação do bagaço de cana: estudos de microrganismos, processos fermentativos relacionados e métodos de hidrólise |
| Beneficiário: | Eleni Gomes |
| Linha de fomento: | Auxílio à Pesquisa - Temático |