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The bio refinery; producing feed and fuel from grain
D V Scholey1, E J Burton1, P E V Williams2
1Nottingham Trent University, Southwell, Nottingham NG25 0QF, United Kingdom.
Food Chemistry
|December 1, 2015
Summary
Grain can be sustainably processed into both renewable fuel and valuable livestock feed. This bioprocessing method optimizes grain utilization, maximizing protein and oil for feed, with ethanol as a co-product.
Area of Science:
- Agricultural Science
- Biotechnology
- Sustainable Energy
Background:
- Grain is a versatile agricultural commodity with potential for dual use.
- Current utilization often focuses on single end-products, leading to underutilization of constituents.
- Renewable energy and sustainable feed sources are in high demand.
Purpose of the Study:
- To evaluate the integrated bioprocessing of grain for simultaneous feed and fuel production.
- To assess the nutritional value of grain co-products, particularly yeast.
- To promote a sustainable and optimized utilization of grain resources.
Main Methods:
- Fermentation of grain starch to produce ethanol (biofuel).
- Extraction and characterization of protein and oil content for animal feed.
- Evaluation of yeast biomass generated during fermentation as a feed ingredient.
Main Results:
- Successful co-production of ethanol biofuel and protein-rich feed components from grain.
- Identified significant nutritional value in yeast co-products for livestock and aquaculture.
- Demonstrated a holistic approach to grain valorization.
Conclusions:
- Integrated bioprocessing offers an optimal and sustainable method for utilizing all grain components.
- This approach enhances the value derived from grain, supporting both renewable energy and animal nutrition sectors.
- Maximizing co-product value, such as yeast, is crucial for economic and environmental viability.
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