Volatile and medium chain fatty acid production from cabbage residues using mixed culture fermentations and in-situ product removal by electrodialysis

Ludwig Selder (Corresponding Author), Rosaliina Turunen, Kiira Vuoristo, Jaana Uusitalo, An-Ping Zeng

Research output: Contribution to journalArticleScientificpeer-review

Abstract

Volatile 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.
Original languageEnglish
Article number100828
Number of pages9
JournalBioresource Technology Reports
Early online date20 Sep 2021
DOIs
Publication statusE-pub ahead of print - 20 Sep 2021
MoE publication typeA1 Journal article-refereed

Keywords

  • caproic acid
  • valeric acid
  • butyric acid
  • biomass valorization
  • megashaera cerevisiae
  • pediococcous pentosaceus

Fingerprint

Dive into the research topics of 'Volatile and medium chain fatty acid production from cabbage residues using mixed culture fermentations and in-situ product removal by electrodialysis'. Together they form a unique fingerprint.

Cite this