Solid-state fermentation of maple wood by Polyporus anceps

Summary Solid-state fermentations of alkali-treated maple wood shavings were carried out at 30°C in three types of static tray fermenters using Polyporus anceps. Comparison of the fermentation products after 40 days showed a recirculating tower bioreactor (RTB) to be more effective for the production of protein and the consumption of substrate than either a shallow or deep static tray fermentation vessel. Use of the RTB resulted in 70% substrate utilization and a residue containing 17% crude protein.