(399b) Novel Bioelectrochemical Bioreactor Systems for Enhanced Biosynthesis Processes
Bioreactors is the heart of BES. However, only very basic experimental set-ups of BES such as the âH-cellsâ or biofilm bioreactors have been so far used, along with some modifications. These reactors were used to show possibilities of electricity-supported bioproduction in proof of principle studies but are mostly unsuitable for more quantitative or mechanistic studies, not to mention the difficulties in scaling them up. In this presentation, I will first give an overview of bioreactors for BES (e-bioreactor) for biosynthesis. I will then introduce our recent development of single-chamber e-bioreactors with a rode-shaped âAll-in-Oneâ electrode which can be easily inserted into typical bioreactor set-ups (e.g. stirred tank and bubble column reactors) for biosynthesis using microbes and enzymes. The âAll-in-Oneâ reactor system has been successfully used for in situ generation of H2 and O2, control of redox potential and recharge of electron-shuttles for electricity-aided production of chemicals and microbial lipids. The usefulness of these electrode and e-bioreactors is being verified and further developed for specific scientific questions and processes, the use CO or syngas as C1 building block for bioproduction.