Publication date: 8th October 2020
Photosynthetic aquatic microorganisms, cyanobacteria and algae, are considered as third or fourth generation truly sustainable feedstock for blue biorefineries. Proof-of-concept trials for dozens of genetically-engineered photosynthetic organisms hosting novel synthetic pathways for production of desired chemicals are currently available. However, most of the available systems demonstrate low solar-to-product conversion efficiencies and need significant improvements to serve as industrial-scale production platforms. We apply two different strategies to improve photosynthetic production systems: modulation of alternative electron transport pathways in order to eliminate 'waste' points in photosynthesis [1-3] and development of efficient solid-state (cyanobacterial or algal artificial thin films) production system [4-6]. The engineered photosynthetic microbes entrapped in the tailored polymeric matrix could truly act as photo-biocatalyst for the prolonged bioproduction by strongly limiting biomass accumulation and maintaining photosynthetic activity and cell fitness.
The study is financially supported by the Academy of Finland (AlgaLEAF project # 322754) and by the Nordforsk Nordic Center of Excellence program "NordAqua" (project #82845).
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