| Full text | |
| Author(s): |
Laís A. Soares
[1]
;
Lucas T. Fuess
[2]
;
Tiago P. Delforno
[3]
;
Valéria M. Oliveira
[4]
;
Edson L. Silva
[5]
;
Maria B. A. Varesche
[6]
Total Authors: 6
|
| Affiliation: | [1] Universidade de São Paulo. Escola de Engenharia de São Carlos. Departamento de Hidráulica e Saneamento - Brasil
[2] Universidade de São Paulo. Escola de Engenharia de São Carlos. Departamento de Hidráulica e Saneamento - Brasil
[3] Instituto SENAI de Inovação em Biotecnologia - Brasil
[4] Universidade Estadual de Campinas. Centro Pluridisciplinar de Pesquisas Químicas, Biológicas e Agrícolas. Divisão de Recursos Microbianos - Brasil
[5] Universidade Federal de São Carlos. Departamento de Engenharia Química - Brasil
[6] Universidade de São Paulo. Escola de Engenharia de São Carlos. Departamento de Hidráulica e Saneamento - Brasil
Total Affiliations: 6
|
| Document type: | Journal article |
| Source: | Química Nova; v. 47, n. 8 2024-04-22. |
| Abstract | |
Solid and liquid fractions of hydrothermally pretreated sugarcane bagasse (SCB) were simultaneously used as substrate of a novel continuous compartmentalized reactor. The effect of four (56, 42, 28, and 14 h) hydraulic retention time (HRT) and three (0.5, 3.0, and 9.0 g L-1) chemical oxygen demand (COD) levels were evaluated on hydrogen (H2) and organic acids production. Higher H2 production and yield (686 mL and 1.63 mol mol-1 carbohydrate, respectively) were obtained under an HRT of 28 h, probably due to the Clostridium and Thermoanaerobacterium metabolisms, which accounted for almost 60% of the microbial relative abundance. Under lower and higher HRT (14 and 56 h, respectively) lactic acid prevailed without hydrogen production. Other value-added chemicals such as citric, valeric and caproic acids were also obtained according to the HRT. From the functional point of view, enzymes from the glycoside hydrolases group (GHs) potentially performed important roles in the lignocellulosic biomass bioconversion. (AU) | |
| FAPESP's process: | 17/07194-6 - INTEGRATED ANALYSIS FOR DEGRADATION OF SUGARCANE BAGASSE AND PENTOSE LIQUOR IN A COMPARTMENTALIZED THERMOPHILIC ANAEROBIC FIXED-BED REACTOR |
| Grantee: | Laís Américo Soares |
| Support Opportunities: | Scholarships in Brazil - Post-Doctoral |
| FAPESP's process: | 15/06246-7 - Biorefinery concept applied to biological wastewater treatment plants: environmental pollution control coupled with material and energy recovery |
| Grantee: | Marcelo Zaiat |
| Support Opportunities: | Research Projects - Thematic Grants |