Mild pretreatment and enzymatic saccharification of cellulose with recycled ionic liquids towards one-batch process
Abstract
The development of second-generation bioethanol involves minimizing the energy input throughout the processing steps. We report here that efficient ionic liquid pretreatments of cellulose can be achieved with short duration times (20 min) at mild temperature (45°C) with [Emim](+)[MeO(H)PO(2)](-) and at room temperature (25 °C) with [Emim](+)[CH(3)COO](-). In these conditions, yields of glucose were increased by a factor of 3. In addition, the recycling of these two imidazolium-based ILs can be performed in maintaining their efficiency to pretreat cellulose. The short time and mild temperature of cellulose solubilization allowed a one-batch processing of [Emim](+)[MeO(H)PO(2)](-) IL-pretreatment and saccharification. In the range from 0 to 100% IL in an aqueous enzymatic medium, the glucose yields were improved at IL proportions between 10 and 40%. The maximum yield at 10% IL is very promising to consider one batch process as efficient as two-step process.
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The energy input to grinding for corn stover conversion was estimated to be 1.1% of the energy content of corn stover (0.186 GJ of 17.0 GJ per tonne).
“The energy input to grinding for corn stover conversion was estimated to be 1.1% of the energy content of corn stover (0.186 GJ of 17.0 GJ per tonne).185”
From Deconstruction of lignocellulosic biomass with ionic liquids (2013) · cites this paper as [185]
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References 45 · Cited by 63
- Authors
- Auxenfans, T., Buchoux, S., Djellab, K., Avondo, C., Husson, E., & Sarazin, C.
- Affiliations
- Centre National de la Recherche Scientifique (FR)
- Université de Picardie Jules Verne (FR)
- Corresponding author
- Sarazin, Catherine
- Venue
- Carbohydrate Polymers
- Publisher
- Elsevier BV
- Published
- 2012-10
- Volume
- 90
- Issue
- 2
- Pages
- 805-813
- ISSN
- 0144-8617 (ISSN-L)
- OpenAlex
- W2165380189
- Cited by
- 63
- References
- 45
- Citations by year
- 2024: 2 · 2023: 3 · 2022: 5 · 2021: 4 · 2020: 3 · 2019: 7 · 2018: 8 · 2017: 6 · 2016: 6 · 2015: 6 · 2014: 6 · 2013: 4 · 2012: 3
- FWCI
- 3.46
- Type
- journal article
- Language
- en
- Open access
- closed
- Licence
- Locations
- Carbohydrate Polymers (publishedVersion)
- PubMed (publishedVersion)
- HAL (submittedVersion)
- Funders
- Conseil Régional de Picardie
- Topics
- Physical Sciences › Engineering › Biomedical Engineering › Biofuel production and bioconversion
- Physical Sciences › Chemical Engineering › Catalysis › Ionic liquids properties and applications
- Physical Sciences › Engineering › Biomedical Engineering › Catalysis for Biomass Conversion
- Keywords
- ionic liquid pretreatment, cellulose, enzymatic saccharification, ionic liquid recycling, cellulosic ethanol, glucose yield, imidazolium ionic liquids, cellulose solubilization
- MeSH terms
- Biotechnology, Cellulose, Enzymes, Hydrolysis, Polysaccharides, Temperature, Equipment Reuse, Biomass, Bioreactors, Ionic Liquids, Batch Cell Culture Techniques
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