Mushroom spent straw: a potential substrate for an ethanol-based biorefinery

摘要: Rice straw (RS) is an important lignocellulosic biomass with nearly 800 million dry tons produced annually worldwide. RS has immense potential as a feedstock for making renewable fuels and chemicals in biorefinery. However, because of its natural recalcitrance, needs thermochemical treatment prior to further biological processing. Ammonia fiber expansion (AFEX) leading pretreatment process utilizing concentrated/liquefied ammonia pretreat at moderate temperatures (70–140°C). Previous research shown improved cellulose hemicellulose conversions upon AFEX 2:1 (w/w) loading, 40% moisture (dwb) 90°C. there still scope improvement. Fungal lignocellulosics method that not received much attention the past. A few reasons ignoring fungal-based pretreatments are substantial loss content longer times reduce overall productivity. sugar can be minimized through use white-rot fungi (e.g. Pleutorus ostreatus) over shorter duration time. It was found mushroom spent allowed reduction severity, while resulting 15% higher glucan than pretreated alone. In this work, we report effect fungal conditioning followed by enzymatic hydrolysis. The recovery other byproducts from such enzymes mushrooms also discussed.