2026-05-05T20:48:31Zhttps://uvadoc.uva.es/oai/request

oai:uvadoc.uva.es:10324/536012025-09-09T09:14:14Zcom_10324_1173com_10324_931com_10324_894col_10324_1371

00925njm 22002777a 4500 dc Rodero Raya, María del Rosario author Herrero Lobo, Raquel author Pérez Martínez, Victor author Muñoz Torre, Raúl author 2022 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. Bioresource Technology, 2022, vol. 358, 127398 0960-8524 https://uvadoc.uva.es/handle/10324/53601 10.1016/j.biortech.2022.127398 Influence of operational conditions on the performance of biogas bioconversion into ectoines in pilot bubble column bioreactors