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Anemophilic fungi have stood out as one of the main agents that cause respiratory infections in artificially conditioned environments, due to their potential as a producer of extracellular enzymes, especially proteases. The present study aimed to characterize the fungal isolate C4 (27) morphologically and to evaluate its ability to produce protease. The identification of the fungal isolate was carried out through the study of macro and microscopic characteristics. To determine the proteolytic activity, mycelium discs from young colonies were inoculated centrally in Petri dishes containing the agar-milk medium. The enzymatic activity was evaluated by the formation of degradation halos of the fungus grown in the specific medium and determination of the Enzyme Relationship Index. The tested fungal isolate showed a positive reaction for enzyme production, with an enzyme ratio greater than 2.0. This data suggests that the fungus under study is a promising microorganism in the production of protease.

brazilian journal of development

CARACTERIZAÇÃO MORFOLÓGICA E PROTEOLÍTICA DE ASPERGILLUS NIGER ISOLADO DA BIBLIOTECA DO IFPE - CAMPUS RECIFE / MORPHOLOGICAL AND PROTEOLYTICAL CHARACTERIZATION OF ASPERGILLUS NIGER ISOLATED FROM THE IFPE - CAMPUS RECIFE LIBRARY