Amylase Production of Strains of Anamorphic Fungi Isolated from Leaf Litter of Quercus sp

Ricardo Figueroa-Ceballos, Osberth Morales-Esquivel, María del Carmen Bran González

Resumen


Anamorphic fungi is a group of microorganisms of great importance since they produce a wide variety of substances as part of their metabolism, as well as enzymes useful in the degradation of different substances. Some of these enzymes are amylases, which degrade starch to dextrin, maltose or free glucose. Therefore, having industrial application for the potential of 40 strains of anamorphic from Quercus sp, lead litter collected in the Municipal Regional Park Astillero Municipal de Tecpán, in Chimaltenango (N 14°46'48.81'', O 91°0'27.42'') and the Ecological Park Senderos de Alux, in San Lucas Sacatepéquez (N 14°36'43.41'', O 90°38'15.92''). The production of amylases was evaluated through the index of enzymatic activity, which was evidenced by the detection of starch agar degradation halo on starch agar, as well as by the measurement of the amylolytic activity of the enzyme extracts. Of the strains evaluated, 37 (92.5%) produced amylases. The amylolytic activities of the anamorphic fungi native strains correspond with those reported for species of industrial use. The strain that showed the highest amylolytic activity (625 [13.09] UA/dl) was Virgaria nigra SL12517, which is similar to that reported for other fungi used in industrial processes. This shows the amylolytic potential of anamorphic fungi of Querqus sp leaf litter.

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