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

Table 2

Interaction effects (𝑃 value) of screw speed and barrel temperature on sugar recovery from different biomasses.

Source	Switchgrass			Big bluestem			Prairie cord grass
	Glucose	Xylose	Combined	Glucose	Xylose	Combined	Glucose	Xylose	Combined
1 Cellulase : 1 β-glucosidase
Temp	0.2115	0.4627	0.2793	<0.0001	<0.0001	<0.0001	0.0011	0.0008	0.0040
Screw speed	0.1277	0.3122	0.1752	<0.0001	<0.0001	<0.0001	0.7399	0.5537	0.6705
Temp*screw speed	0.4888	0.4940	0.5078	<0.0001	0.0002	<0.0001	0.7055	0.2894	0.7271
1 Cellulase : 4 β-glucosidase
Temp	<0.0001	<0.0001	<0.0001	0.0110	0.0468	0.0234	0.4655	0.5518	0.5633
Screw speed	<0.0001	0.0046	<0.0001	0.2526	0.3593	0.2526	0.9793	0.9417	0.9522
Temp*screw speed	0.0043	0.0102	0.0765	0.3452	0.5526	0.3654	0.5521	0.6598	0.6163
1 Multienzyme : 1 β-glucosidase
Temp	<0.0001	<0.0001	0.0011	0.6948	<0.0001	0.0137	0.0032	<0.0001	0.4914
Screw speed	0.0012	0.0008	0.0412	0.7554	0.0006	0.3020	0.0005	0.1499	<0.0001
Temp*screw speed	0.0002	0.0109	0.1987	0.7897	0.0322	0.7827	0.0017	0.4073	<0.0001