Selder, LudwigLudwigSelderTurunen, RosaliinaRosaliinaTurunenVuoristo, Kiira S.Kiira S.VuoristoUusitalo, JaanaJaanaUusitaloZeng, An-PingAn-PingZeng2022-01-252022-01-252021-12Bioresource Technology Reports 16 : 100828 (2021-12)http://hdl.handle.net/11420/11548Volatile fatty acids (VFA) and medium chain carboxylic acids (MCCAs) are needed in several branches of the chemical industry such as in pharmaceutics, food, and feed, making a biorefinery inspired production that starts from low-grade biomass an interesting alternative to conventional petrochemical processes. In this study, butyric, valeric and caproic acid were produced with a defined co-culture of Megasphaera cerevisiae and Pediococcus pentosaceus by utilizing food waste residue, hydrolyzed cabbage, as the sole carbon source. The developed process was scaled-up to 25 L and coupled with a modified electrodialysis for in-situ product removal to limit the concentrations of accumulating VFAs and MCCAs in the fermentation broth. This process resulted in titers of 10.98 g L-1, 6.19 g L-1 and 0.23 g L-1 of butyric, valeric acid and of caproic acid, respectively, showing that MCCAs and VFAs of growing demand can be produced via valorization of organic residues from waste streams.en2589-014XBioresource technology reports2021Biomass valorizationButyric acidCaproic acidMegasphaera cerevisiaePediococcus pentosaceusValeric acidVolatile and medium chain fatty acid production from cabbage residues using mixed culture fermentations and in-situ product removal by electrodialysisJournal Article10.1016/j.biteb.2021.100828Other