Kinetic growth of Fusarium oxysporum cultured on different glucose and pectin levels

Authors

  • Gabriela Macías-De la Cerda Universidad Autónoma de Coahuila
  • Fabiola Veana Universidad Autónoma de Coahuila
  • Juan Carlos Contreras Esquivel Universidad Autónoma de Coahuila
  • Cristóbal Noé Aguilar-González Universidad Autónoma de Coahuila
  • Raúl Rodríguez-Herrera Universidad Autónoma de Coahuila

DOI:

https://doi.org/10.33064/iycuaa2016672272

Keywords:

depolymerization, F. oxysporum, glucose, pectic enzymes, pectin, invasion rate

Abstract

Pectin and pectic enzymes are essential in the food industry, mainly in the juice industry, confectionary and bakery. Diverse fungal species are able to produce pectinases in order to degrade pectin for surviving and growth. In the present study, radial growth rate of Fusarium oxysporum was evaluated. Glucose, pectin and pectin hydrolysates (with different degrees of depolymerization) were employed as substrates. Obtained results suggest that low substrate concentrations promoted a higher invasion rate, whereas, under high substrate concentrations it was lower. Control of the phenomenon of catabolic repression through definition of initial concentrations of both substrates, is essential for pectinases production under solid state fermentations and to increase biotechnology applications of these enzymes.

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Author Biographies

Gabriela Macías-De la Cerda, Universidad Autónoma de Coahuila

Departamento de Investigación en Alimentos, Facultad de Ciencias Químicas

Fabiola Veana, Universidad Autónoma de Coahuila

Departamento de Investigación en Alimentos, Facultad de Ciencias Químicas

Juan Carlos Contreras Esquivel, Universidad Autónoma de Coahuila

Departamento de Investigación en Alimentos, Facultad de Ciencias Químicas

Cristóbal Noé Aguilar-González, Universidad Autónoma de Coahuila

Departamento de Investigación en Alimentos, Facultad de Ciencias Químicas

Raúl Rodríguez-Herrera, Universidad Autónoma de Coahuila

Departamento de Investigación en Alimentos, Facultad de Ciencias Químicas

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Published

2016-04-30

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Section

Artículos de Investigación

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