Article
Ligninolytic activity patterns of Pleurotus ostreatus obtained by submerged fermentation in presence of 2-6, dimethoxyphenol and Remazol brilliant blue R dye
Autor
Rojas López, Marlon
Institución
Resumen
The degradation of 2-6, dimethoxyphenol (DMP) and decolorization of Remazol brilliant
blue R dye (RBB), added to culture media of Pleurotus ostreatus developed in
submerged fermentation and the laccase, manganese peroxidase and veratryl alcohol
oxidase activities produced in these systems were evaluated. Both compounds were
removed from the culture medium mainly by enzymatic action. These compounds
decreased the specific growth rate and the effect on the maximal biomass values was not
important. The enzymatic activities were increased by DMP and/or RBB, however, the
DMP showed higher inducer effect on all enzymes than RBB. On the other hand, the
RBB showed major inducer effect on manganese peroxidase activity than on the laccases
and veratryl alcohol oxidase activities. These results show that DMP was better inducer
of ligninolytic enzymes than dye, and the process of dye decolorization and degradation
of DMP requires the action of all enzymes of the ligninolytic complex.