Exploring filamentous fungi depolymerization of corn stover in the context bioenergy queuing operations

This study assesses how low-cost modifications in the supply chain can be transformed into targeted pretreatments in the context of the entire bioenergy supply chain. Techno-economic assessment (TEA) of fungal pretreatment in a short-term queuing system indicated the viability of this approach compared to conventional queuing operations. AbstractRecalcitrance of lignocellulosic feedstocks to depolymerization is a significant barrier for bioenergy production approaches that require conversion of monomeric carbohydrates to renewable energy sources. This study assesses how low-cost modifications in the supply chain can be transformed into targeted pretreatments in the context of the entire bioenergy supply chain. This research aims to overcome the physiochemical barriers in corn stover that necessitate increased severity in downstream conversion in terms of chemical loading, temperature, and residence time. Corn stover samples were inoculated with a selective (Ceriporiopsis subvermispora) and nonselective (Phanerochaete chrysosporium) lignin-degrading filamentous fungal strains, then stored aerobically to determine the working envelope for fungal pretreatment to achieve lignin degradation. Dry matter loss and gross chemical makeup of corn stover varied by the length of treatment (2 and 4  weeks) and by the moisture content of the treated corn stover samples (40% and 60%, wet basis). Dry matter loss inP.  chrysosporium inoculated biomass was elevated compared toC.  subvermispo...
Source: Food and Energy Security - Category: Food Science Authors: Tags: ORIGINAL RESEARCH Source Type: research