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Table 2 Chemical composition of washing liquid from exploded VR

From: Development of optimal steam explosion pretreatment and highly effective cell factory for bioconversion of grain vinegar residue to butanol

Pretreatment conditionsComposition of the washing liquid (g/100 g feedstock)Glucan conversion (%)Xylan conversion (%)Arabinan conversion (%)
Pressure (MPa)Time (min)Severity (Log(R0))GlucoseXyloseArabinoseFurfuralHMFTotal monosaccharides
1.512.87a4.18 ± 0.597.80 ± 0.511.86 ± 0.12Not detectedNot detected13.84 ± 0.4114.74 ± 2.1040.19 ± 2.679.58 ± 0.63
1.523.17a4.46 ± 0.6310.51 ± 0.612.58 ± 0.150.012 ± 0.0010.010 ± 0.00117.55 ± 0.4615.72 ± 2.2454.1 ± 3.2013.29 ± 0.79
1.533.34a6.62 ± 0.9512.39 ± 0.713.79 ± 0.220.015 ± 0.0020.011 ± 0.00122.8 ± 0.6323.34 ± 3.3863.38 ± 3.7219.53 ± 1.15
1.543.47a8.50 ± 1.2114.19 ± 0.934.62 ± 0.300.021 ± 0.0030.034 ± 0.00227.31 ± 0.8129.97 ± 4.3172.65 ± 4.8723.81 ± 1.57
213.32a2.82 ± 0.408.37 ± 0.572.16 ± 0.150.024 ± 0.0030.028 ± 0.00413.35 ± 0.379.94 ± 1.4243.13 ± 2.9911.13 ± 0.79
223.62a7.43 ± 1.0713.45 ± 0.873.64 ± 0.240.054 ± 0.0080.063 ± 0.00524.52 ± 0.7326.2 ± 3.8169.05 ± 4.5618.76 ± 1.26
233.79a7.64 ± 1.0914.10 ± 0.853.81 ± 0.230.062 ± 0.0070.097 ± 0.00725.55 ± 0.7226.94 ± 3.8872.65 ± 4.4519.63 ± 1.20
243.92a9.07 ± 1.3015.06 ± 0.914.25 ± 0.260.180 ± 0.0110.230 ± 0.01628.38 ± 0.8231.98 ± 4.6377.29 ± 4.7721.9 ± 1.36
2.513.59a5.22 ± 0.7512.23 ± 0.612.62 ± 0.130.120 ± 0.0070.192 ± 0.02120.07 ± 0.518.4 ± 2.6762.86 ± 3.2013.5 ± 0.68
2.523.89a8.36 ± 1.1913.90 ± 0.714.31 ± 0.220.180 ± 0.0130.220 ± 0.02026.57 ± 0.7129.47 ± 4.2471.62 ± 3.7222.21 ± 1.15
2.534.07a9.80 ± 1.4014.62 ± 0.724.79 ± 0.240.320 ± 0.0450.456 ± 0.03629.21 ± 0.7934.55 ± 4.9975.23 ± 3.7724.68 ± 1.26
  1. a Compared with the untreated VR group, the content of monosaccharide from all the pretreated groups increased significantly by t test (p < 0.05)