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Título
Feasibility study of biohydrogen production from acid cheese whey via lactate-driven dark fermentation
Autor
Año del Documento
2023
Editorial
MDPI
Descripción
Producción Científica
Documento Fuente
Fermentation, 2023, Vol. 9, Nº. 7, 644
Zusammenfassung
The high loading of lactic acid bacteria (LAB) present in cheese whey still limits its use as hydrogen feedstock. This study aims to investigate the feasibility of producing hydrogen from acid cheese whey via lactate-driven dark fermentation (LD-DF). Mesophilic batch fermentations were performed with delipidated acid cheese whey at a fixed pH of 5.8 and driven by an acidogenic bacterial culture containing LAB and lactate-oxidizing hydrogen producers (LO-HPB). The results obtained indicated that it is technically feasible to produce hydrogen from undiluted cheese whey through lactate oxidation-mediated fermentation. It was elucidated that the acidogenic fermentation of cheese whey followed a two-step lactate-type fermentation, in which fermentable carbohydrates were first converted into lactate, and then lactate was metabolized into hydrogen with the co-production of butyrate. The hydrogen yield and the maximum volumetric hydrogen production rate achieved were 44.5 ± 2.9 NmL/g-CODfed and 1.9 NL/L-d, respectively. Further microbial community analysis revealed that Lactobacillus, Clostridium, and Klebsiella were the dominant bacterial genera when the hydrogen production rate peaked. It was therefore suggested that the metabolic potential behind the association between LAB and LO-HPB was important in driving the two-step lactate-type fermentation. Overall, the LD-DF can be a strategic hydrogen-producing pathway to be implemented with cheese whey.
Materias (normalizadas)
Bioenergy
Biomass energy
Energía de la biomasa
Biogas
Renewable Energy
Energías renovables
Cheese whey
Cheese
Queso
Whey
Suero
Fermentation
Hydrogen
Lactate
Materias Unesco
2406.03 Bioenergética
2302.12 Fermentación
2303.14 Hidrogeno
ISSN
2311-5637
Revisión por pares
SI
Patrocinador
Consejo Nacional de Ciencia y Tecnología (CONACYT) - (Project CF-2023-G-648).
Consejo Nacional de Ciencia y Tecnología (CONACYT) - (grant 2021-000001- 01NACF-1444)
Ministerio de Ciencia e Innovación/Agencia Estatal de Investigación (AEI)/10.13039/501100011033 - (Grant RYC2021-034559-I)
Junta de Castilla y León y Fondo Europeo de Desarrollo Regional (FEDER) - (grant CL-EI-2021-07)
Consejo Nacional de Ciencia y Tecnología (CONACYT) - (grant 2021-000001- 01NACF-1444)
Ministerio de Ciencia e Innovación/Agencia Estatal de Investigación (AEI)/10.13039/501100011033 - (Grant RYC2021-034559-I)
Junta de Castilla y León y Fondo Europeo de Desarrollo Regional (FEDER) - (grant CL-EI-2021-07)
Version del Editor
Propietario de los Derechos
© 2023 The authors
Idioma
eng
Tipo de versión
info:eu-repo/semantics/publishedVersion
Derechos
openAccess
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