Comparison of Mycelial Growth Kinetics Model for Pleurotus ostreatus Cultured in Shaking Flask and Fermenter

Abstract:

This manuscript study the difference of the fermentation kinetics of Pieurotus ostreatus TD300 in shask and 40 L fermentor.It was found that the mycelial growth kinetics models of both culture modes were accord with Logistic equation.Culturing period,maximum specific growth rate and mycelial concentration cultured in shaking flask were 8 d,0.050 h-1 and 1.5001 g/ml,respectively.While the corresponding value changed to 84 h,0.110 h-1 and 1.4750 g/ml when Pieurotus ostreatus TD300 cultured in fermenter,respectively.The results proven that fermentor culutre was a higher efficiency culture for Pieurotus ostreatus.Furthermore,pellet size and number per unite volume of liquid spawn cultured by shaking flask were smaller and higher than that by fermenter.It was probably caused by the viscosity of medium in shaking flask reduced faster than that in fermentor.