Laccase production by Myrothecium gramineum and its optimization under solid state fermentation using cowpea pod as substrate

ABSTRACT

The present study highlights the utilization of wastes such as cowpea outer pod generated from agro industries forlaccase production using Myrothecium gramineum LCJ177 under solid-state fermentation. Conventional methodswere used to optimize the process parameters. The classical one-factor-at-a-time method showed that the optimalstarch concentration was 1 g/L, peptone concentration was 0.5 g/L, copper sulfate concentration was 0.6 mM, andpyrogallol concentration was 0.8 mM. Likewise, the suitable physical conditions were an initial pH of five of theculture medium, the temperature of 30°C and moisture content of 60%. Utilization of dried cowpea outer pod as asubstrate reduces the pollution levels by converting agro-wastes as useful by-products.