Table 2.

Chemical compositions of the control, pretreated, and post-treated substrates under various conditions

	Chemical composition (w/w, %)a				Chemical composition (w/w, %)a
	Hemib	Cellulose	Lignin		Hemib	Cellulose	Lignin
Control-S	27.46	38.29	20.50	Control-R	33.57	56.45	3.00
S(100-0.5-2)	14.95	48.22	26.90	R(100-0.5-2)	13.03	78.37	2.53
S(110-0.5-2)	12.61	50.25	28.40	R(110-0.5-2)	7.13	80.29	2.81
S(120-0.5-2)	7.56	51.86	30.63	R(120-0.5-2)	4.17	81.93	6.38
S(130-0.5-2)	5.18	53.51	31.47	R(130-0.5-2)	3.14	82.29	7.23
S(140-0.5-2)	4.39	55.04	31.93	R(140-0.5-2)	2.26	82.81	7.89
S(150-0.5-2)	2.36	57.16	32.80	R(150-0.5-2)	1.03	84.29	8.31
S(130-0.5-0.5)	8.08	51.84	30.33	R(130-0.5-0.5)	5.32	79.34	5.30
S(130-0.5-1)	6.96	52.10	31.33	R(130-0.5-1)	3.83	80.15	5.56
S(130-0.5-1.5)	5.91	52.79	31.32	R(130-0.5-1.5)	2.53	81.82	5.88
S(130-0.5-2.5)	4.09	55.02	32.73	R(130-0.5-2.5)	2.33	82.29	6.75
S(130-0.5-3)	3.49	57.14	33.13	R(130-0.5-3)	1.84	83.81	7.61
S(130-0.25-2)	8.51	52.71	29.87	R(130-0.25-2)	4.47	80.17	5.42
S(130-0.6-2)	5.15	54.51	31.93	R(130-0.6-2)	1.95	83.01	7.00
S(130-0.7-2)	3.44	59.04	32.30	R(130-0.7-2)	1.80	84.55	8.58
S(130-0.8-2)	2.93	56.82	33.50	R(130-0.8-2)	1.47	82.23	9.60
S(130-1-2)	1.87	29.08	59.61	R(130-1-2)	1.17	78.13	11.43

^aCellulose expressed as glucan; Hemicelluloses expressed as xylan + arabinan + galactan; Lignin expressed as acid insoluble lignin (Klason lignin) and acid soluble lignin. Data represented are the averages of the results from duplicated experiments

^bHemi expressed as Hemicelluloses

^cS refers to dilute acid pretreated materials under different conditions and R refers to the NaOH post-treated substrates from the dilute acid pretreated rice straw