Kinetic growth of Fusarium oxysporum cultured on different glucose and pectin levels
DOI:
https://doi.org/10.33064/iycuaa2016672272Keywords:
depolymerization, F. oxysporum, glucose, pectic enzymes, pectin, invasion rateAbstract
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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