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Farid Talebnia,Moein Mighani,Mostafa Rahimnejad,Irini Angelidaki 한국생물공학회 2015 Biotechnology and Bioprocess Engineering Vol.20 No.1
Rapeseed straw was utilized as a cheap rawmaterial for ethanol production. Effects of steam explosionon chemical composition, enzymatic hydrolysis (EH) andsimultaneous saccharification and fermentation (SSF) werestudied. Changes in the pretreatment conditions showedstrong effects on digestibility of the resulting straw. Theoptimum results were obtained at 180°C, 10% solid fraction,1% H2SO4, and 10 min retention time. Under optimalcondition, glucose hydrolysis yields of 93 and 89% wereobtained for 5 and 10% solid fractions, respectively. Thecorresponding ethanol yields were 63 and 67% of maximumtheoretical value. Next, data of the experimental runs wereexploited for modeling the processes by artificial neuralnetworks (ANNs) and performance of the developed modelswas evaluated. The ANN-based models showed a greatpotential for time-course prediction of the studied processes. Efficiency of the joint network for simulating the wholeprocess was also determined and promising results wereobtained.