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Table 1 Chemical composition of untreated bagasse and samples that underwent acid and alkali pretreatments

From: Nuclear magnetic resonance investigation of water accessibility in cellulose of pretreated sugarcane bagasse

Bagasse samples Bagasse composition (%)
Cellulose Hemicellulose Lignin Total
Untreated bagasse 45 ± 1 31.0 ± 0.9 28 ± 1 104 ± 4
H 2 SO 4 1% 58.3 ± 0.8 8.9 ± 0.1 33.6 ± 0.1 101 ± 2
NaOH 0.25% 68.3 ± 0.6 5.4 ± 0.1 26.1 ± 0.3 99.7 ± 0.9
NaOH 0.5% 72 ± 6 3.5 ± 0.1 24 ± 6 98.7 ± 0.4
NaOH 1% 83.2 ± 0.3 3.2 ± 0.1 11.2 ± 0.8 98 ± 1
NaOH 2% 85.8 ± 0.3 3.3 ± 0.1 9.6 ± 0.5 99 ± 1
NaOH 3% 87.3 ± 0.1 3.2 ± 0.1 9.7 ± 0.5 100.1 ± 0.4
NaOH 4% 85 ± 4 3.2 ± 0.1 9.4 ± 0.4 98 ± 5
  1. All the samples treated with the different NaOH concentrations were previously treated with 1% H2SO4.