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Feasibility of using biochar as buffer and mineral nutrients replacement for acetone-butanol-ethanol production from non-detoxified switchgrass hydrolysate
- Source :
- Bioresource Technology. 298:122569
- Publication Year :
- 2020
- Publisher :
- Elsevier BV, 2020.
-
Abstract
- Biochar can be an inexpensive pH buffer and source of mineral and trace metal nutrients in acetone-butanol-ethanol (ABE) fermentation. This study evaluated the feasibility of replacing expensive 4-morpholineethanesulfonic acid (MES) P2 buffer and mineral nutrients with biochar made from switchgrass (SGBC), forage sorghum (FSBC), redcedar (RCBC) and poultry litter (PLBC) for ABE fermentation. Fermentations using Clostridium beijerinckii ATCC 51743 in glucose and non-detoxified switchgrass hydrolysate media were performed at 35 °C in 250 mL bottles for 72 h. Medium containing buffer and minerals without biochar was the control. Similar ABE production (about 18.0 g/L) in glucose media with SGBC, FSBC and RCBC and control was measured. However in non-detoxified switchgrass hydrolysate medium, SGBC, RCBC and PLBC produced more ABE (about 18.5 g/L) than the control (10.1 g/L). This demonstrates that biochar is an effective buffer and mineral supplement for ABE production from lignocellulosic biomass without costly detoxification process.
- Subjects :
- 0106 biological sciences
Environmental Engineering
Butanols
Biomass
Lignocellulosic biomass
Bioengineering
010501 environmental sciences
Panicum
01 natural sciences
Hydrolysate
Acetone
chemistry.chemical_compound
010608 biotechnology
Biochar
Ethanol fuel
Food science
Waste Management and Disposal
0105 earth and related environmental sciences
Ethanol
biology
Renewable Energy, Sustainability and the Environment
Chemistry
Butanol
Nutrients
General Medicine
biology.organism_classification
Clostridium beijerinckii
Charcoal
Fermentation
Feasibility Studies
Subjects
Details
- ISSN :
- 09608524
- Volume :
- 298
- Database :
- OpenAIRE
- Journal :
- Bioresource Technology
- Accession number :
- edsair.doi.dedup.....013ab8bc1e544dbbfd7832efcc93675a