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Table 1 Characteristics of the dilute-phosphoric acid pretreated wheat straw pre-hydrolysate from the demonstration facility

From: Lignocellulose integration to 1G-ethanol process using filamentous fungi: fermentation prospects of edible strain of Neurospora intermedia

Characteristics Pretreatment conditions
P201 P195 P190
 Acid concentration 0.7% (w/v) 1.2% (w/v) 1.75%
 Residence time 7 min 7 min 10 min
 Temperature 201 ± 4 °C; 195 ± 2 °C, 190 ± 2 °C
Composition of pretreated slurry
Sugars in liquid (g /L) and solid (g/g dry substrate) fraction
 Arabinan Liquid 5.04 ± 0.1 6.6 ± 0.2 15.02 ± 0.14
Solid 0.031 ± 0.003 0.028 ± 0.001 0.022 ± 0.002
 Glucan Liquid 2.8 ± 0.2 4.6 ± 0.4 11.53 ± 0.06
Solid 0.302 ± 0.010 0.246 ± 0.02 0.235 ± 0.01
 Xylan Liquid 15.8 ± 0.4 31.6 ± 0.1 16.1 ± 0.1
Solid 0.016 ± 0.003 0.028 ± 0.007 0.037 ± 0.006
Fermentation Inhibitors (g /L) in liquid fraction
 Acetic acid 2.1 ± 0.0 2.8 ± 0.1 1.82 ± 0.03
 Furfural 3.2 ± 0.3 5.6 ± 0.4 2.71 ± 0.12
 HMF 0.39 ± 0.02 0.53 ± 0.02 0.89 ± 0.03