Hydrogen Production from Sugarcane Bagasse Pentose Liquor Fermentation Using Different Food/Microorganism and Carbon/Nitrogen Ratios under Mesophilic and Thermophilic Conditions

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Autor(es): dc.contributorUniversidade Estadual de Campinas (UNICAMP)-
Autor(es): dc.contributorUniversidade de São Paulo (USP)-
Autor(es): dc.contributorUniversidade Estadual Paulista (UNESP)-
Autor(es): dc.creatorMattiello-Francisco, Luísa-
Autor(es): dc.creatorFerreira, Filipe Vasconcelos-
Autor(es): dc.creatorPeixoto, Guilherme-
Autor(es): dc.creatorMockaitis, Gustavo-
Autor(es): dc.creatorZaiat, Marcelo-
Data de aceite: dc.date.accessioned2025-08-21T23:12:43Z-
Data de disponibilização: dc.date.available2025-08-21T23:12:43Z-
Data de envio: dc.date.issued2025-04-29-
Data de envio: dc.date.issued2024-08-01-
Fonte completa do material: dc.identifierhttp://dx.doi.org/10.3390/fermentation10080432-
Fonte completa do material: dc.identifierhttps://hdl.handle.net/11449/302683-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/302683-
Descrição: dc.descriptionHydrogen is a well-known clean energy carrier with a high energetic yield. Its versatility allows it to be produced in diverse ways, including biologically. Specifically, dark fermentation takes advantage of organic wastes, such as agro-industrial residues, to obtain hydrogen. One of these harmful wastes that is poorly discharged into streams is sugarcane bagasse pentose liquor (SBPL). The present study aimed to investigate hydrogen generation from SBPL fermentation in batch reactors by applying different food/microorganism (2–10 F/M) and carbon/nitrogen (10–200 C/N) ratios under mesophilic and thermophilic conditions. Biohydrogen was produced in all pentose liquor experiments along with other soluble microbial products (SMPs): volatile fatty acids (VFAs) (at least 1.38 g L−1 and 1.84 g L−1 by the average of C/N and F/M conditions, respectively) and alcohols (at least 0.67 g L−1 and 0.325 g L−1 by the average of C/N and F/M conditions, respectively). Thermophilic pentose liquor reactors (t-PLRs) showed the highest H2 production (H2 maximum: 1.9 ± 0.06 L in 100 C/N) and hydrogen yield (HY) (1.9 ± 0.54 moles of H2 moles of substrate−1 in 2 F/M) when compared to mesophilic ones (m-PLRs). The main VFA produced was acetate (>0.85 g L−1, considering the average of both nutritional conditions), especially through the butyrate pathway, which was the most common metabolic route of experimental essays. Considering the level of acid dilution used in the pretreatment of bagasse (H2SO4 (1%), 1.1 atm, 120 °C, 60 min), it is unlikely that toxic compounds such as furan derivatives, phenol-like substances (neither was measured), and acetate (<1.0 g L−1) hinder the H2 production in the pentose liquor reactors (PLRs). Sugarcane bagasse pentose liquor fermentation may become a suitable gateway to convert a highly polluting waste into a renewable feedstock through valuable hydrogen production.-
Descrição: dc.descriptionInterdisciplinary Research Group on Biotechnology Applied to Agriculture and the Environment (GBMA) School of Agricultural Engineering (FEAGRI) University of Campinas ( UNICAMP), Av. Candido Rondon, 501—University City-
Descrição: dc.descriptionLaboratory of Biological Processes Center for Research Development and Innovation in Environmental Engineering Sao Carlos School of Engineering University of Sao Paulo Santa Angelina, 1100, João Dagnone Ave.-
Descrição: dc.descriptionDepartment of Bioprocesses and Biotechnology Faculty of Pharmaceutical Sciences Sao Paulo State University (FCFAR/UNESP), Araraquara—Jaú Road, Km 1-
Descrição: dc.descriptionDepartment of Bioprocesses and Biotechnology Faculty of Pharmaceutical Sciences Sao Paulo State University (FCFAR/UNESP), Araraquara—Jaú Road, Km 1-
Idioma: dc.languageen-
Relação: dc.relationFermentation-
???dc.source???: dc.sourceScopus-
Palavras-chave: dc.subjectbatch reactors-
Palavras-chave: dc.subjectC/N ratios-
Palavras-chave: dc.subjectF/M ratios-
Palavras-chave: dc.subjecthydrogen-
Palavras-chave: dc.subjectmesophilic condition-
Palavras-chave: dc.subjectpentose liquor-
Palavras-chave: dc.subjectsugarcane bagasse-
Palavras-chave: dc.subjectthermophilic condition-
Palavras-chave: dc.subjectxylose-
Título: dc.titleHydrogen Production from Sugarcane Bagasse Pentose Liquor Fermentation Using Different Food/Microorganism and Carbon/Nitrogen Ratios under Mesophilic and Thermophilic Conditions-
Tipo de arquivo: dc.typelivro digital-
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