Table 3.

Cellulose- and lignin-related properties of native and pretreated biomass

Substrate	Pretreatment severity (CSF)	LOI	HBI	CLL
		A 1423/A 897	A 3400/A 1323	A 1508/A 1600
Miscanthus × giganteus	Untreated	0.74 ± 0.03	15.5 ± 0.7	1.64 ± 0.03
	2.0	0.79 ± 0.01	16.7 ± 0.3	2.01 ± 0.02
	2.6	0.94 ± 0.03	18.0 ± 0.3	2.51 ± 0.08
	2.7	0.89 ± 0.03	18.6 ± 0.3	2.48 ± 0.07
	2.8	0.94 ± 0.04	18.6 ± 0.7	2.38 ± 0.09
Poplar	Untreated	1.77 ± 0.04	11.9 ± 0.1	1.32 ± 0.04
	2.0	1.43 ± 0.04	10.7 ± 0.2	1.28 ± 0.01
	2.6	1.44 ± 0.02	11.1 ± 0.3	1.38 ± 0.03
	2.8	1.44 ± 0.06	11.1 ± 0.4	1.35 ± 0.01
Wheat straw	Untreated	0.78 ± 0.03	20.9 ± 0.7	0.91 ± 0.03
	2.0	0.80 ± 0.03	25.5 ± 0.6	2.35 ± 0.52
	2.6	0.83 ± 0.03	23.7 ± 0.4	2.94 ± 0.23
	2.7	0.87 ± 0.02	24.6 ± 0.4	2.23 ± 0.19
	2.8	0.90 ± 0.01	23.5 ± 0.6	2.28 ± 0.09

LOI lateral order index, HBI hydrogen bond intensity, CLL cross-linked lignin

All the values are expressed as mean ± SD of triplicate