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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

etals addition for enhanced hydrogen, acetic and butyric acids production from cellulosic substrates by Clostridium butyricu

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Author(s):
Braga, Juliana Kawanishi [1] ; Stancari, Rafaela Arantes [1] ; Motteran, Fabricio [1] ; Malavazi, Iran [2] ; Varesche, Maria Bernadete Amancio [1]
Total Authors: 5
Affiliation:
[1] Univ Sao Paulo, Sao Carlos Sch Engn, Dept Hydraul & Sanitat, Av Trabalhador Saocarlense 400, BR-13566590 Sao Carlos, SP - Brazil
[2] Univ Fed Sao Carlos, Dept Genet & Evolut, Sao Carlos, SP - Brazil
Total Affiliations: 2
Document type: Journal article
Source: BIOMASS & BIOENERGY; v. 150, JUL 2021.
Web of Science Citations: 2
Abstract

The influence of Fe (Iron), Ni (Nickel) and Se (Selene), important cofactors for hydrogenase (hyd), was evaluated in the bioproduction of H2, volatile organic acids (VOA) and alcohols using Clostridium butyricum as inoculum and 5 g/L of cellulose, glucose or sugarcane bagasse (SCB) in batch reactors at 37 degrees C. Conditions A (25 mu M Fe), B (25 mu M Fe + 1 mu M Ni), C (25 mu M Fe + 1 mu M Ni + 1 mu M Se) and D (with no metal addition) using cellulose and glucose were performed to optimize the culture medium. H2 production was favored in condition A being around 16 mmol/L and 6 mmol/L for glucose and cellulose, respectively. The predominance of butyric acid was observed in all experimental series with cellulose and glucose. On the other hand, acetic acid was predominant in the SCB assay. The presence of other bacteria in SCB may have contributed to the change in the route of the final metabolites. The results suggested the possibility of improving H2 and OA production by C. butyricum supplementing the medium with Fe using SCB as substrate source. (AU)

FAPESP's process: 09/15984-0 - Bioenergy production from wastewaters and environmental fitting of liquid and solid wastes generated
Grantee:Marcelo Zaiat
Support Opportunities: Research Projects - Thematic Grants
FAPESP's process: 13/20196-7 - Hydrolysis of sugar cane bagasse for the hydrogen and biogas production with suspended and immobilized in nanocoatings biomass
Grantee:Juliana Kawanishi Braga
Support Opportunities: Scholarships in Brazil - Post-Doctoral