Table 2: Chemical composition (% w/w, dry basis) of Brazilian SB reported in the literature.

Component (%) Reference Pitarelo [27]1* da Silva et al. [28]2 Canilha et al. [19]3* Rocha et al. [15]4* Brienzo et al. [29]5 Rabelo et al. [30]6 Cellulose 41.1 38.8 45.0 45.5 42.4 38.4 Hemicellulose 22.7 26.0 25.8 27.0 25.2 23.2 Lignin 31.4 32.4# 19.1 21.1 19.6 25.0 Ash 2.4 2.8 1.0 2.2 1.6 1.5 Extractives 6.8 — 9.1 4.6 — — Others — — — — — —

*Extractives-free basis. #Lignin and others. Extracting solvents: 1dichloromethane, ethanol : toluene (1 : 2), ethanol, and hot water; 2none; 3water and ethanol; 4ethanol; 5ethanol; 6none.