Evaluation of lime and hydrothermal pretreatments for efficient enzymatic hydrolysis of raw sugarcane bagasse

Table 1 Chemical composition of the raw sugarcane bagasse after hydrothermal (HYDR) and lime (LIME) pretreatments

Pretreatment	Lignin (%)	Hemicellulose (%)	Cellulose (%)	Pretreatment yield^a (%)
Control^b	23.77 ± 0.30	32.77 ± 2.25	44.49 ± 1.33	100
LIME 7	19.02 ± 0.28	35.33 ± 0.60	44.98 ± 0.45	75.0 ± 1.4
LIME 30	19.18 ± 1.95	31.23 ± 1.17	49.55 ± 1.27	68.2 ± 3.2
LIME 60	16.70 ± 0.52	31.86 ± 0.25	49.56 ± 0.12	51.1 ± 1.6
HYDR 7	24.28 ± 0.26	33.08 ± 0.48	44.26 ± 1.63	89.0 ± 1.4
HYDR 30	23.96 ± 0.68	31.75 ± 0.12	43.81 ± 0.33	85.2 ± 1.6
HYDR 60	23.74 ± 0.33	30.25 ± 1.13	43.11 ± 0.97	70.5 ± 0.0

Contents of the each fraction are expressed an average ± standard deviation of two replicates
^aThe pretreatment yield refers to the insoluble solids remaining after pretreatment as a percentage of the initial material
^bControl = raw sugarcane bagasse untreated

ISSN: 2731-3654