Data/hora: 06/06/2024 05:46:12

Provedor de dados: | 58
País: | Brazil
Título: | Constitutive and inducible pectinolytic enzymes from Aspergillus flavipes FP-500 and their modulation by pH and carbon source
Autores: | Martínez-Trujillo,Aurora; Aranda,Juan S.; Gómez-Sánchez,Carlos; Trejo-Aguilar,Blanca; Aguilar-Osorio,Guillermo.
Data: | 2009-03-01
Ano: | 2009
Palavras-chave: | Aspergillus flavipes; Pectinolytic enzymes; Constitutive enzymes; Inducible enzymes; Pectin.
Resumo: | Growth and enzymes production by Aspergillus flavipes FP-500 were evaluated on pectin, polygalacturonic acid, galacturonic acid, arabinose, rhamnose, xylose, glycerol and glucose at different initial pH values. We found that the strain produced exopectinases, endopectinases and pectin lyases. Exopectinases and pectin lyase were found to be produced at basal levels as constitutive enzymes and their production was modulated by the available carbon source and pH of culture medium and stimulated by the presence of inducer in the culture medium. Endo-pectinase was basically inducible and was only produced when pectin was used as carbon source. Our results suggest that pectinases in A. flavipes FP-500 are produced in a concerted way. The first enzyme to be produced was exopectinase followed by Pectin Lyase and Endo-pectinase.
Tipo: | Info:eu-repo/semantics/article
Idioma: | Inglês
Identificador: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822009000100006
Editor: | Sociedade Brasileira de Microbiologia
Relação: | 10.1590/S1517-83822009000100006
Formato: | text/html
Fonte: | Brazilian Journal of Microbiology  v.40 n.1 2009
Fonte: | info:eu-repo/semantics/openAccess