| Registro completo |
| Provedor de dados: |
BJM
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| País: |
Brazil
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| Título: |
Constitutive and inducible pectinolytic enzymes from Aspergillus flavipes FP-500 and their modulation by pH and carbon source
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| Autores: |
Martínez-Trujillo,Aurora
Aranda,Juan S.
Gómez-Sánchez,Carlos
Trejo-Aguilar,Blanca
Aguilar-Osorio,Guillermo
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| Data: |
2009-03-01
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| Ano: |
2009
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| Palavras-chave: |
Aspergillus flavipes
Pectinolytic enzymes
Constitutive enzymes
Inducible enzymes
Pectin
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| 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.
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| Tipo: |
Info:eu-repo/semantics/article
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| Idioma: |
Inglês
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| Identificador: |
http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822009000100006
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| Editor: |
Sociedade Brasileira de Microbiologia
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| Relação: |
10.1590/S1517-83822009000100006
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| Formato: |
text/html
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| Fonte: |
Brazilian Journal of Microbiology v.40 n.1 2009
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| Direitos: |
info:eu-repo/semantics/openAccess
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