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Updated: Feb 12, 2026

Fractionation of Lignocellulosic Biomass using the OrganoCat Process
Published on: June 5, 2021
Novel micronized woody biomass process for production of cost-effective clean fermentable sugars
Yu Fu1, Bon-Jae Gu2, Jinwu Wang3
1College of Materials Science and Engineering, Nanjing Forestry University, Nanjing, China; Composite Materials and Engineering Center, Washington State University, Pullman, WA 99164, USA.
Abstract:
Thermo-chemical pretreatments of biomass typically result in environmental impacts from water use and emission. The degradation byproducts in the resulting sugars can be inhibitory to the activities of enzymes and yeasts. The results of this study showed that combining existing commercial comminution technology can reduce total energy consumption with improved saccharification yield while eliminating chemical use. Impact mill was found to be the most efficient milling for size reduction of forest residual chips from ca. 2 mm to a specific value below 100 µm. The further micronization effectively disrupted the recalcitrance of the woody biomass and produced the highly saccharifiable substrates for downstream processing. In addition, extrusion can be integrated into a clean cellulosic sugar process for further fibrillation in place of the conventional mixing processing. The highest energy efficiency was observed on the impact-milled samples with 0.515 kg sugars kWh-1.
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