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Table 1 Comparison of selected pretreatments that maximize enzymatic digestibility of agave tequilana bagasse (AGB) and municipal solid waste (MSW)—paper mix

From: Ternary ionic liquid–water pretreatment systems of an agave bagasse and municipal solid waste blend

Pretreatment Feedstock T (°C) t (min) Chemical loading (g/g dry biomass) Removal Solid loading at saccharification Sugar conversion at 72 h Reference
% Xylan % Lignin
% Glucan % Xylan
AFEX AGB 102 30 2 0 0 5 g glucan/L 81 82 [48]
MSW 65 15 2.8 0 0 1% glucan 34 47 [49]
Alkaline* AGB 120a and 24b 60a and 1440b 0.3a and 0.3b 6 83 1:5 solid/liquid 98 48 [50]
Dilute acid AGB 147 15 0.18 100 −67 8.2 (%, w/w) 68+ [51]
MSW 140 40 0.1 42 79 1% glucan 80 ND [52]
Hydrothermal AGB 180 30 80 2 5 g glucan/L 80 83 [48]
Ionic liquid [C2C1Im][OAc] AGB 120 180 9 7 25 5 g glucan/L 95 92 [48]
AGB 120 180 9 4 25 5 g glucan/L 95 87 This study—system A
AGB 120 180 9 18 27 5 g glucan/L 98 80 This study—system J
MSW 140 180 9 0 6 10% biomass 93 73 [9]
MSW 120 180 9 0 0 5 g glucan/L 97 94 This study system A
  MSW 120 180 9 0 0 5 g glucan/L 93 75 This study system D
Ionic liquid [C4C1Im][Cl] AGB 120 180 9 10 12 5 g glucan/L 82+ [53]
  1. AFEX ammonia fiber expansion, ND non determined
  2. * Batch process using consecutive pretreatments with a NaOH and b H2O2
  3. +Total sugar yield