Commercial equipment used to study biofuel-producing bacteria can be prohibitively expensive, which prompted the team to build their own bioreactors that are accessible to most research laboratories. The researchers then used this equipment to verify that one of their genetically engineered variants of Clostridium bacteria could produce the biofuel butanol more rapidly.

These research findings, which have been published in the journals Access Microbiology and Microbial Biotechnology, reveal that a subtle change to a single gene can result in remarkable changes to how sugars are converted to biofuel products.

It is expected that this work will improve accessibility to cheaper bioreactors to stimulate wider research into biofuel production using natural and engineered bacteria.

Corresponding author Dr Mark Shepherd, Senior Lecturer in Microbial Chemistry at Kent, said: ‘These exciting developments will help to advance research into bacterial biofuel production, and we are particularly enthusiastic to use our expertise to optimise processes that can convert waste products from food and agriculture into biofuels that are greener alternatives to fossil fuels.’

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