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. 2018 Apr 4;8(4):208. doi: 10.1007/s13205-018-1216-0

Table 2.

Lignocellulosic composition, CrI, and recovery of untreated and pretreated rice straw

Pretreatment Composition (%) Delignification (%) CrI (%) Biomass recovery (%) Sugar yield (%) Theoretical yield of ethanola (%)
Hemicellulose Cellulose Lingin
Untreated 35.49 ± 0.73 22.87 ± 1.55 19.91 ± 1.56 0 67.6 100.0 31.5 ± 1.8 16.1
ILM 38.31 ± 1.21 26.30 ± 0.99 13.14 ± 0.25 38.4 62.3 93.4 ± 2.5 38.6 ± 1.3 19.7
ILM 39.56 ± 0.37 30.54 ± 1.30 12.35 ± 0.45 42.7 60.9 92.3 ± 0.8 46.8 ± 2.4 23.9
UHP 38.66 ± 0.97 28.64 ± 0.73 16.68 ± 0.56 21.6 56.3 93.6 ± 1.0 62.5 ± 2.4 31.9
UHP 38.83 ± 0.36 32.57 ± 1.22 16.03 ± 0.60 25.6 53.4 92.4 ± 0.2 50.4 ± 3.2 25.7
UHP 40.50 ± 0.24 35.55 ± 0.54 15.49 ± 0.20 29.6 48.3 90.5 ± 1.4 74.9 ± 2.8 38.2
ILM + UHP 40.46 ± 1.23 30.23 ± 0.33 10.36 ± 0.15 57.3 47.9 82.0 ± 0.5 71.0 ± 2.6 36.2
ILM + UHP 42.92 ± 1.30 33.14 ± 0.49 11.63 ± 0.46 50.0 46.3 85.6 ± 1.9 75.3 ± 2.0 38.4
ILM + UHP 43.30 ± 0.89 37.16 ± 1.36 8.40 ± 0.38 66.2 42.4 80.1 ± 1.5 89.6 ± 3.1 45.7

aMaximum theoretical yield for ethanol from hexose as well as pentose sugars is 0.51 g/g sugar (Singh et al. 2014)