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Forest Products Laboratory
One Gifford Pinchot Drive
Madison, WI 53726-2398
Phone: (608) 231-9200
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Title: Increased sugar yield from pre-milled Douglas-fir forest residuals with lower energy consumption by using planetary ball milling

Source: Bioresource Technology. 251: 93-98.

Author(s)Gu, Bon-Jae ; Wang, Jinwu ; Wolcott, Michael P.; Ganjyal, Girish M.

Publication Year: 2018  View PDF »

Category: Journal Articles
Associated Research Project(s):   FPL-4706-1B

Abstract: Impact of planetary ball milling on pre-milled wood fiber was studied to improve efficiency of energy consumption for bioconversion using post-harvest forest residuals. Crystalline cellulose decreased from 40.73% to 11.70% by ball milling. Crystallinity index of ball milled wood samples had a negative correlation with glucose yield (r=−0.97, p < .01), xylose/mannose (r=−0.96, p < .01), and a positive correlation with median particle size (r=0.77, p < .01). Range of glucose yield and xylose/mannose yield for ball milled samples was found to be 24.45–59.67% and from 11.92% to 23.82%, respectively. Morphological changes of the lignocellulosic biomass were observed; the compact fiber bundles of the forest residuals were cleaved to smaller particles with lower aspect ratio with increasing intensity of ball milling. The required energy ranged from 0.50 to 2.15 kWh/kg for 7–30 min of milling respectively.

Keywords: Mechanical pretreatment; ball milling; Douglas-fir forest residuals; lignocellulosic biomass

Publication Review Process: Formally Refereed

File size: 761 kb(s)

Date posted: 09/27/2018

This publication is also viewable on Treesearch:  view
RITS Product ID: 92565
Current FPL Scientist associated with this product
Wang, Jinwu
Research Forest Products Technologist

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