Table 3.

Chemical composition (dry weight basis (%)) of raw materials and unwashed WIS

Chemical composition	Reed straw		Corn stover
	Raw material	Unwashed WIS	Raw material	Unwashed WIS
Benzene-alcohol (2:1) extractive	8.39 ± 0.10	12.14 ± 0.10	10.95 ± 0.07	19.97 ± 0.19
Glucan	40.52 ± 0.03	55.87 ± 0.03	38.75 ± 0.04	57.07 ± 0.03
Xylan	25.86 ± 0.19	3.05 ± 0.03	23.51 ± 0.18	1.80 ± 0.02
Acid-insoluble lignin	16.22 ± 0.02	17.67 ± 0.03	15.62 ± 0.16	16.89 ± 0.03
Acid-soluble lignin	2.0 ± 0.1	0.6 ± 0	2.4 ± 0	0.4 ± 0.1
Ash	3.59 ± 0.14	8.67 ± 0.10	3.65 ± 0.08	0.40 ± 0.04