Abstract
Photosynthetic engineered cyanobacteria hold a great potential for the direct conversion of solar energy and CO2 into ‘green’ ethylene.
Highlights
The global challenges of the present day, including mitigation of climate change and scarcity of natural resources, emerge a transition from a linear fossil-based economy to a circular sustainableeconomy
This study demonstrates that application of a thin-layer biofilm technology to Synechocystis efe mutant represents a proof-of-concept for long-term (38 days) photosynthetic ethylene production with high light to ethylene conversion efficiency
(1 mM IPTG) and Ci source (20 mM NaHCO3). 2 mL culture was placed in a gas-tight vial and ethylene production was monitored every 24 h by gas chromatography
Summary
The global challenges of the present day, including mitigation of climate change and scarcity of natural resources, emerge a transition from a linear fossil-based economy to a circular sustainable (bio)economy. There is an urgent need to develop sustainable fossil-free production platforms for fuels and chemicals. Photosynthetic microorganisms (e.g. cyanobacteria, microalgae) are considered as a third-generation sustainable feedstock for the chemical industry. They utilize solar energy to convert CO2 into biomass and energy-rich organic compounds. These microorganisms are capable of holding novel synthetic production pathways that allow them to function as living cell factories for the production of targeted chemicals and fuels.[1,2,3] Among cyanobacteria, Synechocystis sp
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