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Table 4 Comparison of bioethanol production from various kinds of lignocellulosic biomass at high-solids content

From: Production of high concentrated cellulosic ethanol by acetone/water oxidized pretreated beech wood

Biomass Solids content (wt%) Pretreatment method Enzyme loading (FPU/g DM) Ethanol concentration (g/L) Ethanol productivity (g/L·h) Ethanol yieldf (%) References
Beechwood 20.0 Acetone/water oxidation 8.4 75.9 0.63 68.1 This study
Bermudagrass 36.0 Phosphoric acid–acetone 25.0d 56.1 0.58 65.1 [53]
Corncob residue 20.0 Dilute acid hydrolysis-alkaline extraction 15.0 75.1 1.25 89.4 [54]
Corn stover 15.5 CELFa 3.1 58.8 0.49 89.2 [55]
Corn stover 20.0 Steam explosion 17.7 59.8 0.31 77.2 [40]
Corn stover 24.0 Acetic acid-catalysed hydrothermal 17.4 41.9 0.44 51.3 [16]
Eastern redcedar 20.0 Acid bisulfite 31.2 52.0 1.24 67.6 [56]
Empty palm fruit bunch 30.0 Alkali 15.0 62.5 0.66 70.6 [57]
Miscanthus 25.0 CHEMETb 17.0 69.2 1.24 87.2 [58]
Rapeseed straw 16.7 Dilute acid 15.0 39.9 1.67 46.7 [59]
Reed 36.0 Phosphoric acid-acetone 25.0d 69.3 0.72 74.7 [53]
Rice straw 13.8 Dilute acid-dilute alkali 30.0 58.7 0.49 73.4 [60]
Spruce 20.0 c 7.5 40.0 0.42 53.0 [61]
Sugarcane bagasse 20.0 Formiline 10.0 80.0 0.55 82.7 [44]
Sweet sorghum bagasse 18.0 Hydrothermal 20.0 47.9 2.18 70.4 [17]
Wheat straw 25.0 Steam explosion 15.0 58.6 0.73 56.9 [46]
Wheat straw 26.0 Hydrothermal 7.0e 58.0 0.48 75.0 [19]
  1. aCo-solvent enhanced lignocellulosic fractionation
  2. bChangHae Ethanol Multi ExTruder
  3. cProvided by SECAB-E-Technology AB (Örnsköldsvik, Sweden)
  4. dFPU/g cellulose
  5. eEnzymes from Fusarium oxysporum corresponding to 1.23 FPU/g DM was also added to SSF
  6. fCalculated as percentage of maximum theoretical yield