Produção de enzimas hidrolíticas extracelulares por actinobactérias oriundas do solo e serrapilheira de região semiárida

Abstract

The actinobacteria are microorganisms that produce a remarkable variety of secondary metabolites. Among these products, enzymes stand out due to their wide industrial and biotechnological application. Besides that, these bacteria are responsible for important ecological interactions in soil. It was analized and compared the production of hydrolytic enzymes,amylase and celulase,in 58 strains of actinobacteria native from soil and litter colected from Estação Ecológica de Aiuaba (Ce). At the amylolytic test, 98,27% of the strains demonstrated degradation halo.The cellolytic test showed that 75,86% from the strains reveal degradation halo.The statistic tests showed no significant difference of enzymatic activity of hydrolytic enzymes between soil and litter. It was concluded that there was a higher production of the amylase enzyme than the cellulase enzyme and there was a greater presence of actinobacteria producing enzyme in the soil than in the litter.