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Table 3 Comparison of the AAO–AHP pretreatment with others on lignocellulosic biomass

From: Bioprocessing of tea oil fruit hull with acetic acid organosolv pretreatment in combination with alkaline H2O2

Feedstock Pretreatment process Resulting solids Source
Type Pretreatment Post-pretreatment C H L
Content (%) Catalyst T (°C) Time (h) %
C. inophyllum shell H2SO4 + NaOH 1% At 90 °C for a fixed time 35 7 25 Cheng et al. [26]
E. ulmoides Oliver SEP + AHP 213 1/3 1.5% H2O2, pH 11.5 77 4 5 Zhu et al. [15]
Lespedeza stalk SEP + AHP 184 1/15 2% H2O2, pH 11.5 83 0 10 Su et al. [27]
EFB AAO + AQA 7 (15)  % AAO (AQA) pretreatment at 180 °C for 15 min 65 22 21 Kim et al. [22]
Wheat straw AAO 90 0.4% H2SO4 105 3 67 11 4 Pan and Sano [9]
Wheat straw AAO 80 8.5% HNO3 120 0.3 96 3 1 Sun et al. [38]
Sugarcane straw AAO 80 0.3% HCl 120 3 61 7 12 Saad et al. [23]
Sugarcane bagasse AAO 90 0.1% H2SO4 105 3 64 17 13 Zhao et al. [10]
Beech AAO 90 0.2% HCl 130 1 77 8 8 Vila et al. [43]
Corn stover HCl + H2O2 7% HCl 120 2/3 3% H2O2 + 0.1% FeSO2 26 2 12 Li et al. [16]
Wheat straw AAO + AHP 55% 30% FA 105 3 1% H2O2 70 15 2 Snelders et al. [18]
TOFH AGO 70 180 3   22 26 27 Sun et al. [7]
TOFH AAO 53 0.6% H2SO4 125 1.7 44 12 26 This study
TOFH AAO + AHP 53 0.6% H2SO4 125 1.7 3% H2O2, pH 11.5 65 15 10 This study
  1. EFB empty fruit bunches, SEP steam explosion pretreatment, AQA aqueous ammonia, FA formic acid, C cellulose content, H hemicellulose content, L lignin content