Effect of Extruder Screw Speed, Temperature, and Enzyme Levels on Sugar Recovery from Different Biomasses

Table 1

Chemical composition of switchgrass, big bluestem, and prairie cord grass on dry matter basis (%).

Biomass	Glucose	Xylose	Arabinose	Lignin	Ash	Reference
Switchgrass	25.5±5.8	17.4±2.1	4.9±1.2	24.7±2.1	2.9±0.06	Present study
Switchgrass	38.0	22.0^*		22.0	6.0	[21]
Switchgrass	31.3	20.6	3.1	21.4	7.1	[29]
Switchgrass	41.4	20.9^*		17.3		[30]
Switchgrass	31.8	30.6^*			8.5	[6]
Switchgrass	34.1	22.1	3.1^+			[31]
Switchgrass	31.0–35.4	20.4–24.0	2.7–3.3	17.4–20.8	4.5–7.5	[32]
Switchgrass	34.2±2.1	22.8±1.0	3.1±0.5	19.1±1.7	5.9±1.0	[33]
Switchgrass	33.6±1.0	19.3±0.6		21.4±0.8	3.9±0.3	[34, 35]
Switchgrass	42.0	31.0^*		22.0	7.0	[36]
Switchgrass	31.3	18.4	1.9	22.5		[37]
Big bluestem	21.1±7.2	8.82±1.4	2.45±0.2	21.1±0.6	11.2±0.05	Present study
Big bluestem	42.5	25.9	4.5	21.0		[38]
Big bluestem	34.7	29.2^*			8.0	[6]
Big bluestem	37.0	28.0^*		18.0	6.0	[39, 40]
Big bluestem	29.0–37.2	15.7–22.6	2.4–3.6	17.1–23.8	2.8–5.1	[32]
Prairie cord grass	33.1±0.4	13.5±2.0	1.6±0.6	21.0±0.5	5.6±0.04	Present study
Prairie cord grass	41	33^*			6.0	[41]

^*Hemicellulose: sum of xylose, arabinose, galactose, and mannose.
⁺Combination of arabinose and galactose.