Evaluation of Alkali-Pretreated Soybean Straw for Lignocellulosic Bioethanol Production

Table 1

The chemical composition of soybean straws.

	Compositions (%) per 100 g soybean
Sample	1	2	3	4	5	6
Cellulose	44–83	25.0	34.1	39.8	35.3	44.2
Hemicellulose	-	11.9	16.1	22.6	16.9	5.9
Lignin	5–14	17.6	21.6	12.8	21.7	19.2
Ash	2–5	-	5.2	-	10.6	-
Reference	[6]	[7]	[8]	[9]	[10]	This study

percentage of composition in the biomass is based on the dry weight of soybean straw. amount of lignin contains acid-soluble and insoluble materials. lignin means acid-insoluble fraction.