Alkali Pretreatment and Enzymatic Hydrolysis of Australian Timber Mill Sawdust for Biofuel Production

Table 2

Impact of pretreatment on structural composition ratios.

Dose	Temp. (°C)	Time (hr)	Cellulose/hemicellulose	Lignin/cellulose	Lignin/hemicellulose
Untreated sawdust			5.81	0.76	4.42
3%	60	0.5	7.52	0.79	5.92
		1	7.40	0.82	6.04
		2	5.49	0.76	4.15
7%		0.5	6.21	0.72	4.44
		1	9.77	0.71	6.87
		2	10.70	0.64	6.85
10%		0.5	6.61	0.61	3.99
		1	7.51	0.65	4.90
		2	9.17	0.76	6.89
7%	−20	24	10.97	0.56	6.10
	−20	2	9.71	0.63	6.13
	121	0.5	11.57	0.52	6.01