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United States Department of Agriculture

Agricultural Research Service

Research Project: Enable New Marketable, Value-added Coproducts to Improve Biorefining Profitability

Location: Sustainable Biofuels and Co-products Research

Project Number: 8072-41000-093-00-D
Project Type: In-House Appropriated

Start Date: Sep 8, 2014
End Date: Sep 7, 2019

Objective:
1. Develop processes to fractionate sorghum and corn/sorghum oils into new commercially-viable coproducts. 2. Develop processes to fractionate grain-derived brans into new commercially-viable coproducts. 2a: Develop processes to fractionate grain-derived brans into new commercially-viable coproducts such as lipid-based coproducts and for other industrial uses such as extrusion or producing energy or fuel. 2b: Develop commercially-viable, value-added carbohydrate based co-products from sorghum brans and the brans derived from other grains during their biorefinery process. 3. Develop processes to fractionate biorefinery-derived celluloses and hemicelluloses into new commercially-viable coproducts. 3a: Develop commercially-viable, value-added hemicellulose based co-products from sorghum biomass, sorghum bagasse and other agricultural based biomasses produced during their biorefining. 3b: Develop commercially-viable, value-added cellulose based co-products from sorghum biomass, sorghum bagasse and other agricultural based biomasses produced during their biorefining. 4. Develop technologies that enhance biodiesel quality so as to enable greater market supply and demand for biodiesel fuels and >B5 blends in particular. 4a: Improve the low temperature operability of biodiesel by chemical modification of the branched-chain fatty acids. 4b: Develop technologies that significantly reduce quality-related limitations to market growth of biodiesel produced from trap and float greases. 4c: Further develop direct (in situ) biodiesel production so as to enable its commercial deployment. 5. Develop technologies that enable the commercial production of new products and coproducts at lipid-based biorefineries. 5a: Enable the commercial production of alkyl-branched from agricultural products and food-wastes. 5b: Enable the commercial production of aryl-branched fatty acids produced from a combination of lipids and natural antimicrobials possessing phenol functionalities.

Approach:
In conjunction with CRADA partners and other collaborators, develop technologies that identify new biorefinery coproducts, evaluate their applications and estimate their profitability and marketability. The approach will focus on development processes to produce several types of new coproducts. First, processes will be developed to extract and fractionate sorghum oil from sorghum kernels and sorghum bran. Processes will also be developed to extract and fractionated cellulose-rich and hemicellulose-rich fractions from sorghum kernels, sorghum bran, sorghum bagasse, and biomass sorghum. Other processes will be developed to improve the biofuel value of biodiesel by blending biodiesel with modified fatty acid derivatives to enhance its low temperature performance, reduce the levels of impurities that block fuel lines, economically convert trap grease and float grease to biodiesel, and improve the in situ process to make biodiesel directly from oil-rich low value agricultural products. In addition to biodiesel applications, other processes will be developed to produce branched fatty acids with unique functional (including improved lubricity) and biological properties (including antimicrobial and antioxidant properties).

Last Modified: 09/25/2017
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