RT info:eu-repo/semantics/article
T1 Influence of operational conditions on the performance of biogas bioconversion into ectoines in pilot bubble column bioreactors
A1 Rodero Raya, María del Rosario
A1 Herrero Lobo, Raquel
A1 Pérez, Víctor
A1 Muñoz Torre, Raúl
K1 Biogas
K1 Biogás
K1 Bioreactors
K1 Biorreactores
K1 Ectoine
K1 Ectoína
K1 Hydroxyectoine
K1 Hidroxiectoína
AB The application of biogas as a low-priced substrate for the production of ectoines constitutes an opportunity to decrease their production costs and to enhance the viability of anaerobic digestion. The influence of operational conditions on CH4-biogas biodegradation and on ectoines production yields was assessed in continuous pilot bubble column bioreactors. The rise in biomass concentration from 1 to 3 g L-1 resulted in a decrease in the specific ectoine content from 42±8 to 30±4 mgectoine gVSS-1. The concentration of Cu2+ and Mg2+ did not impact process performance, while the use of ammonium as N source resulted in low CH4 biodegradation and ectoine yields (13±7 mgectoine gVSS-1). The increase in CH4 content from 4.5 to 9 %v·v-1 enhanced CH4 removal efficiency. Process operation at NaCl concentrations of 3 %w·w-1 instead of 6 %w·w-1 decreased the ectoine yield to 17 mgectoine gVSS-1. Finally, Methylomicrobium buryatense was identified as the dominant species.
PB Elsevier
SN 0960-8524
YR 2022
FD 2022
LK https://uvadoc.uva.es/handle/10324/53601
UL https://uvadoc.uva.es/handle/10324/53601
LA eng
NO Bioresource Technology, 2022, vol. 358, 127398
NO Producción Científica
DS UVaDOC
RD 27-jul-2024