In-situ microbial hydrogen generation enabling low-energy hydrogenation from waste sugars
A novel microbial process developed by the University of Edinburgh uses waste bread to produce hydrogen in situ, enabling low-energy, carbon-negative hydrogenation for industrial applications. This approach reduces reliance on fossil fuels and offers sustainable pathways for manufacturing chemicals, pharmaceuticals, and plastics.
The University of Edinburgh has pioneered a one-pot microbial system that converts waste bread into hydrogen gas, which is then used directly in hydrogenation reactions. This process employs bacteria like E. coli under anaerobic conditions to ferment sugars from bread, generating hydrogen without the energy-intensive steps traditionally involved in hydrogen production from fossil fuels. The hydrogen produced is utilized immediately in catalytic hydrogenation, a key step in manufacturing foods, pharmaceuticals, and plastics, but now achieved with a significantly lower carbon footprint and under mild conditions. This method not only offers a sustainable alternative to fossil fuel-derived hydrogen but also supports circular economy principles by valorizing waste bread, a common byproduct. The technology is at an advanced development stage, demonstrating practical potential for industrial integration and contributing to decarbonization efforts in chemical manufacturing.
About University of Edinburgh
The University of Edinburgh is a comprehensive, research‑intensive public university in Scotland’s capital. Industry engages through co‑located facilities and innovation hubs that bring companies into the university ecosystem, including the Bayes Centre for data and AI and the Usher Institute at the Edinburgh BioQuarter. Integration with NHS Lothian at BioQuarter places hospital care, clinics and university research on a single site to speed clinical studies and translation. Research is supported by competitive UK government funding via UKRI and Innovate UK, alongside major charitable funders such as Wellcome. A dedicated technology transfer company, Edinburgh Innovations, streamlines access to expertise, IP management, licensing and venture creation.
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