RT info:eu-repo/semantics/article
T1 Mixotrophic co-cultures fermentation of C1-gases and carrot discard hydrolysate by C. carboxidivorans and C. beijerinckii in stirred tank bioreactor and gas-lift bioreactor
A1 López Linares, Juan Carlos
A1 Fernández Delgado, Marina
A1 Betanzos Salguero, Cristina
A1 Herrero Vieira, María Ángeles
A1 Lucas Yagüe, Susana
A1 Coca Sanz, Mónica
A1 García Cubero, María Teresa
K1 C1-gases bioconversion
K1 Carrot discard
K1 Co-substrates
K1 Co-culture
K1 Clostridia spp
K1 Stirred tank bioreactor
K1 Gas-lift bioreactor
K1 23 Química
AB The current study represents the bioconversion of C1 gases (CO and CO2) using co-cultures of Clostridium car-boxidivorans and Clostridium beijerinckii, with hydrolysates from carrot discard as a co-substrate and supplementalFe0. The performance of two distinct bioreactor configurations, a stirred-tank bioreactor (STB) and a gas-liftbioreactor (GLB) was compared under various gas flow rates. The GLB technology, operating at a gas flow of50 mL/min, proved more efficient, yielding up to 12.0 g/L of butanol, 2.7 g/L of acetic acid, and 7.4 g/L ofbutyric acid within a 47 h fermentation period. This process achieved complete consumption of sugars and CO,alongside a maximum CO2 uptake of 82.4 % at t = 33 h. Consequently, the gas-lift bioreactor represents apromising strategy for the co-fermentation of C1 gases and carrot discard hydrolysate by C. carboxidivorans andC. beijerinckii, offering low energy requirements, cost-effectiveness, and simplicity in design and operation.
PB Elsevier
SN 0961-9534
YR 2026
FD 2026
LK https://uvadoc.uva.es/handle/10324/80102
UL https://uvadoc.uva.es/handle/10324/80102
LA eng
NO Biomass and Bioenergy, 2026, vol. 205, p. 108473
NO Producción Científica
DS UVaDOC
RD 26-nov-2025