The Relationship between Structural Features of Lignocellulosic Materials and Ethanol Production Yield

Lignocellulosic materials are a mixture of natural polymers which can be considered great alternative source chemical products and energy. Hence, pinewood, poplar wood, rice straw, as representatives different types lignocelluloses, were subjected to several pretreatment in order increase ethanol production yield. All pretreatments increased enzymatic hydrolysis yield, specifically with phosphoric acid. This yields by 304.6% 273.61% for wood respectively, compared untreated substrates. In addition, number analyses, including BET test, buffering capacity, crystallinity, accessible surface area, composition measurement, conducted on the pretreated substrates investigate their structural modifications detail. Accessible one most important parameters performance enzymes microorganisms fermentation process, was examined water retention value test. The results this method (using centrifuge) showed that maximum area related samples acid so it WRV 132.19%, 149.41%, 68.44% On whole, restructured opened up tangled structure resulting considerable yields. Moreover, study, first time, new correlation presented each substrate indicates relationship between yield features lignocellulosic substrate.