Navegando por Autor "OLIVEIRA, Edna Maria Morais"
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Item Acesso aberto (Open Access) Production of L-asparaginase by filamentous fungi(2004-08) SARQUIS, Maria Inez de Moura; OLIVEIRA, Edna Maria Morais; SANTOS, Alberdan Silva; COSTA, Gisela Lara daL-asparaginase production was investigated in the filamentous fungi Aspergillus tamarii and Aspergillus terreus. The fungi were cultivated in medium containing different nitrogen sources. A. terreus showed the highest L-asparaginase (activity) production level (58 U/L) when cultivated in a 2% proline medium. Both fungi presented the lowest level of L-asparaginase production in the presence of glutamine and urea as nitrogen sources. These results suggest that L-asparaginase production by of filamentous fungi is under nitrogen regulation.