RT Conference_Proceedings
T1 Kinetic limitations in xylan conversion to caproate
A1 Iglesias Riobó, Juan
A1 Mauricio Iglesias, Miguel
A1 Carballa Arcos, Marta
K1 Chain elongation
K1 Medium chain carboxylates
K1 Mixed-culture fermentation
AB The aim of this work is to identify the kinetic bottleneck during xylan fermentation targeting caproic acid production by shortening the hydraulic retention time (HRT) in a continuous reactor. The highest caproic acid yield (0.09 Cmol/Cmol-s) was achieved at an HRT of 4 d, suggesting that chain elongation process is optimised at these conditions. At shorter HRT (2 and 1 day), caproic acid yield decreased in favour of butyric acid, but xylan was always fully converted. The latter indicates that xylan conversion rate is faster that the chain elongation process, and therefore, the bottleneck of caproate production from xylan fermentation is the chain elongation step.
YR 2024
FD 2024-06-04
LK http://hdl.handle.net/10347/34750
UL http://hdl.handle.net/10347/34750
LA eng
NO 18th IWA World Conference on Anaerobic Digestion
NO This research was framed in CELL4CHEM project (PCI2021-121989, ERACoBioTech 3rd call) funded by MICIU/AEI/10.13039/501100011033 and the European Union NextGenerationEU/PRTR
DS Minerva
RD 26 abr 2026