such as a combination of sulfuric acid-free EtOH heat treatment followed by mechanochemical pulverization, hot-water followed by aqueous ammonia pretreatment, and H2O2 followed by biological pretreatment
such as a combination of sulfuric acid-free EtOH heat treatment followed by mechanochemical pulverization, hot-water followed by aqueous ammonia pretreatment, and H2O2 followed by biological pretreatment