{"id":15178,"date":"2026-01-07T10:42:51","date_gmt":"2026-01-07T10:42:51","guid":{"rendered":"https:\/\/lequia-udg.com\/2026\/01\/07\/empowering-microbial-proteins-continuous-electro-fermentation-of-hydrogen-oxidizing-bacteria-from-water-urea-and-carbon-dioxide\/"},"modified":"2026-01-07T10:48:42","modified_gmt":"2026-01-07T10:48:42","slug":"empowering-microbial-proteins-continuous-electro-fermentation-of-hydrogen-oxidizing-bacteria-from-water-urea-and-carbon-dioxide","status":"publish","type":"post","link":"https:\/\/lequia-udg.com\/ca\/2026\/01\/07\/empowering-microbial-proteins-continuous-electro-fermentation-of-hydrogen-oxidizing-bacteria-from-water-urea-and-carbon-dioxide\/","title":{"rendered":"Empowering microbial proteins: Continuous electro-fermentation of hydrogen-oxidizing bacteria from water, urea and carbon dioxide"},"content":{"rendered":"\t\t
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\r\n\t\t\t\r\n\t\t\t\tAuthors: Laura Rovira-Alsina, Narc\u00eds Pous, Yifeng Zhang, M. Dolors Balaguer, Elisabet Perona-Vico, Llu\u00eds Ba\u00f1eras, Sebasti\u00e0 Puig \r\n\t\t\t\r\n\t\t\t<\/h4>\r\n\t\t

\r\n\t\t\t\r\n\t\t\t\tEmpowering microbial proteins: Continuous electro-fermentation of hydrogen-oxidizing bacteria from water, urea and carbon dioxide\r\n\t\t\t\r\n\t\t\t<\/h2>\r\n\t\t<\/div>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t
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The global demand for sustainable protein sources is driving research into microbial protein production, with hydrogen-oxidizing bacteria identified as particularly promising candidates. This research investigates the optimization of nutrient assimilation and biomass (protein) production in a continuous electro-fermentation process. A deeper understanding of substrate consumption patterns in long-term, continuous operation, an often overlooked aspect, will be key to maximizing both productivity and process stability. In this study, oxygen and hydrogen were produced in situ through water electrolysis, while carbon dioxide and urea-derived nitrogen were used as the main nutrient sources. Over 500\u00a0days of continuous operation, the process maintained stable performance while production was progressively enhanced through targeted adjustments in operating conditions. While stable operation consistently yielded 2.6\u20132.8\u00a0g TSS L\u22121<\/sup>\u00a0d\u22121<\/sup>, peak productivity of 3.7\u00a0g TSS L\u22121<\/sup>\u00a0d\u22121<\/sup>\u00a0was reached at a 20-h hydraulic retention time (HRT) under high hydrogen availability, highlighting the importance of balancing nitrogen supply and HRT to achieve sustainable microbial protein production. Under optimized conditions, biomass protein content reached 90\u00a0%, demonstrating the potential to modulate biomass composition through operational strategies. These findings provide new insight into the stoichiometric balance of electro-fermentation and its potential for scalable, sustainable protein production.<\/p>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t

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\n\t\t\t\t\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/i><\/span>\n\t\t\t\t\t\t\t\t<\/i><\/span>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t\t\t\tAdditional Info<\/a>\n\t\t\t\t\t<\/div>\n\t\t\t\t\t
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Year:<\/strong><\/td>\n2025<\/td>\n<\/tr>\n
Authors:<\/strong><\/td>\nLaura Rovira-Alsina, Narc\u00eds Pous, Yifeng Zhang, M. Dolors Balaguer, Elisabet Perona-Vico, Llu\u00eds Ba\u00f1eras, Sebasti\u00e0 Puig<\/td>\n<\/tr>\n
Reference:<\/strong><\/td>\nChemical Engineering Journal, Volume 526, 2025, 171375, ISSN 1385-8947<\/td>\n<\/tr>\n
Link:<\/strong><\/td>\nhttps:\/\/doi.org\/10.1016\/j.cej.2025.171375<\/a><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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Authors: Laura Rovira-Alsina, Narc\u00eds Pous, Yifeng Zhang, M. Dolors Balaguer, Elisabet Perona-Vico, Llu\u00eds Ba\u00f1eras, Sebasti\u00e0 Puig Empowering microbial proteins: Continuous electro-fermentation of hydrogen-oxidizing bacteria from water, urea and carbon dioxide The global demand for sustainable protein sources is driving research into microbial protein production, with hydrogen-oxidizing bacteria identified as particularly promising candidates. This research investigates … Empowering microbial proteins: Continuous electro-fermentation of hydrogen-oxidizing bacteria from water, urea and carbon dioxide<\/span>“>Continue reading Empowering microbial proteins: Continuous electro-fermentation of hydrogen-oxidizing bacteria from water, urea and carbon dioxide<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"elementor_header_footer","format":"standard","meta":{"footnotes":""},"categories":[64],"tags":[],"class_list":["post-15178","post","type-post","status-publish","format-standard","hentry","category-articles-ca"],"_links":{"self":[{"href":"https:\/\/lequia-udg.com\/ca\/wp-json\/wp\/v2\/posts\/15178","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/lequia-udg.com\/ca\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/lequia-udg.com\/ca\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/lequia-udg.com\/ca\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/lequia-udg.com\/ca\/wp-json\/wp\/v2\/comments?post=15178"}],"version-history":[{"count":1,"href":"https:\/\/lequia-udg.com\/ca\/wp-json\/wp\/v2\/posts\/15178\/revisions"}],"predecessor-version":[{"id":15179,"href":"https:\/\/lequia-udg.com\/ca\/wp-json\/wp\/v2\/posts\/15178\/revisions\/15179"}],"wp:attachment":[{"href":"https:\/\/lequia-udg.com\/ca\/wp-json\/wp\/v2\/media?parent=15178"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/lequia-udg.com\/ca\/wp-json\/wp\/v2\/categories?post=15178"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/lequia-udg.com\/ca\/wp-json\/wp\/v2\/tags?post=15178"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}