In relation to YOE, the parameter ranged between 7.0 and 13.1 kg ethanol per 100 kg OS (Fig. 6B). All substrates pretreated with E&DSA and those with diameter less than 0.36 mm obtained from LHW and E&LHW pretreatments provided values of YOE close to 13.0 kg ethanol/100 kg OS, which represented 88% of the theoretical maximum yield (14.8 kg ethanol/100 kg raw material). In the SSF experiments using E&DSA pretreated solids as substrate it was impossible to attain the maximum theoretical overall yield of ethanol (although YSSF values were close to 100%) because an important fraction of the native cellulose (11.4%) was solubilised during pretreatment. The low values of YOE derived from cultures performed with DSA pretreated solids (8.1 kg ethanol/100 kg OS, from fine particles, and 9.2 kg ethanol/100 kg OS, from original size particles, which corresponds to 54.7% and 62.2% of the maximum theoretical yield, respectively) could also be caused by the partial solubilisation of native cellulose during pretreatment, along with the high lignin percentage in pretreated solids (53.3% according to Fig. 4).
In relation to YOE, the parameter ranged between 7.0 and 13.1 kg ethanol per 100 kg OS (Fig. 6B). All substrates pretreated with E&DSA and those with diameter less than 0.36 mm obtained from LHW and E&LHW pretreatments provided values of YOE close to 13.0 kg ethanol/100 kg OS, which represented 88% of the theoretical maximum yield (14.8 kg ethanol/100 kg raw material). In the SSF experiments using E&DSA pretreated solids as substrate it was impossible to attain the maximum theoretical overall yield of ethanol (although YSSF values were close to 100%) because an important fraction of the native cellulose (11.4%) was solubilised during pretreatment. The low values of YOE derived from cultures performed with DSA pretreated solids (8.1 kg ethanol/100 kg OS, from fine particles, and 9.2 kg ethanol/100 kg OS, from original size particles, which corresponds to 54.7% and 62.2% of the maximum theoretical yield, respectively) could also be caused by the partial solubilisation of native cellulose during pretreatment, along with the high lignin percentage in pretreated solids (53.3% according to Fig. 4).
การแปล กรุณารอสักครู่..
