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Table 2 Adsorbed direct orange (DO) and direct blue (DB) on PSCB after 6 h incubation at 70 °C and the ratio between them (accessible cellulose surface)

From: Limitation of cellulose accessibility and unproductive binding of cellulases by pretreated sugarcane bagasse lignin

Pretreatment Adsorbed DO (mg/g) Adsorbed DB (mg/g) DO/DB
NaOH 18.35 26.41 0.69
Na2SO3/NaOH 24.27 21.19 1.14
H2SO4 17.38 24.9 0.69
NaHSO3/H2SO4 19.84 25.43 0.78
SO2/steam 23.92 22.65 1.05