Towards closed carbon loop fermentations: Cofeeding of Yarrowia lipolytica with glucose and formic acid.

ABSTRACT: A novel fermentation process was developed in which renewable electricity is indirectly used as an energy source in fermentation, synergistically decreasing both the consumption of sugar as a first generation carbon source and emission of the greenhouse gas CO₂ . As an illustration, a glucose-based process is co-fed with formic acid, which can be generated by capturing CO₂ from fermentation offgas followed by electrochemical reduction with renewable electricity. This "closed carbon loop" concept is demonstrated by a case study in which cofeeding formic acid is shown to significantly increase the yield of biomass on glucose of the industrially relevant yeast species Yarrowia lipolytica. First, the optimal feed ratio of formic acid to glucose is established using chemos

SUBMITTER: van Winden WA 

PROVIDER: S-EPMC9540030 | biostudies-literature | 2022 Aug

REPOSITORIES: biostudies-literature