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Isolamento de fungos produtores de enzimas pectinolíticas
handle: 11449/67564
Soil samples collected in the campus, UNESP, Araraquara, SP, were employed to isolate and characterize fungi strains with potential pectinolytic enzymes. These enzymes have arisen great interest due to its increasing application in the food industry. Two hundred forty six strains were isolated based on the appearance of colony on PDA medium, morphology (septate mycelia, nonseptate conidiophore, black conidia, and clublike spore-bearing head), after 48 h of growth at 30°C. Strains were selected in solid medium containing pectin citrus as sole carbon source and 0.5% rutenium red. The characterization of pectinolytic production was performed in solid culture and batch fermentation medium containing pectin citrus. The enzyme pectinolytic production was evaluated at 30°C, without agitation in 100 mL of medium containing 2% pectin citrus, 0.2% ammonium sulphate, 0.2% magnesium sulphate, and 0.05% potassium phosphate. The maximum pectinolytic activity (15U/mL) was observed in the medium after Aspergillus sp CFCF-0492 growth, while Aspergillus sp CFCF-CC1 showed the higher level of the final biomass. The pectinolytic activity is more preserved when the fungi-spores were maintained in agar-Czapeck medium.
- Sao Paulo State University Brazil
pectin, Fungus, nonhuman, biomass, citrus fruit, polygalacturonase, Pectinases, fungus culture, ruthenium red, soil microflora, Soil, magnesium sulfate, Aspergillus, Fermentation, carbon source, enzyme synthesis, ammonium sulfate, potassium dihydrogen phosphate, fungus isolation, Brazil
pectin, Fungus, nonhuman, biomass, citrus fruit, polygalacturonase, Pectinases, fungus culture, ruthenium red, soil microflora, Soil, magnesium sulfate, Aspergillus, Fermentation, carbon source, enzyme synthesis, ammonium sulfate, potassium dihydrogen phosphate, fungus isolation, Brazil
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