Disruption of lignocellulosic biomass along the length of the screws with different screw elements in a twin-screw extruder.
Proper screw design is crucial for effectively pre-treating wood fibers, to assist in the downstream enzymatic conversion of the cellulose into fermentable sugars. Initially, the impact of extruder barrel temperature (50, 100, and 150 °C) and screw speed (25, 50, and 75 rpm) were studied to arrive at the optimum conditions for sugar yield. Lower temperatures and screw speeds resulted in increased sugar yields. To examine the influence of shear imparted by the screws, the residuals samples were recovered from different zones along the screws and evaluated. Sugar yield, crystallinity index, and the particle size distribution of the material collected at different zones were determined. Glucose yield and xylose/mannose yields of the material along the screws, ranged from 23.25 to 42.88% and from 11.95 to 20.54%, respectively. The importance of the screw design was highlighted.
['Gu|Bon-Jae|BJ|', 'Dhumal|Gaurav S|GS|', 'Wolcott|Michael P|MP|', 'Ganjyal|Girish M|GM|']
D018533:Biomass D002482:Cellulose D005285:Fermentation D005947:Glucose D012826:Silicone Elastomers D000073893:Sugars D013696:Temperature
Lignocellulosic biomass Screw Enzymatic hydrolysis Extrusion Physical pretreatment