Improvement of Enzymatic Saccharification and Ethanol Production from Rice Straw Using Recycled Ionic Liquid: The Effect of Anti-Solvent Mixture
One of the major concerns for utilizing ionic liquid on an industrial scale is the cost involved in the production. Despite its proven pretreatment efficiency, expenses involved in its usage hinder its utilization. A better way to tackle this limitation could be overcome by studying the recyclabilit...
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| Format: | Article |
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MDPI AG
2022-03-01
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| Series: | Bioengineering |
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| Online Access: | https://www.mdpi.com/2306-5354/9/3/115 |
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| author | Santi Chuetor Elizabeth Jayex Panakkal Thanagorn Ruensodsai Kraipat Cheenkachorn Suchata Kirdponpattara Yu-Shen Cheng Malinee Sriariyanun |
| author_facet | Santi Chuetor Elizabeth Jayex Panakkal Thanagorn Ruensodsai Kraipat Cheenkachorn Suchata Kirdponpattara Yu-Shen Cheng Malinee Sriariyanun |
| author_sort | Santi Chuetor |
| collection | DOAJ |
| description | One of the major concerns for utilizing ionic liquid on an industrial scale is the cost involved in the production. Despite its proven pretreatment efficiency, expenses involved in its usage hinder its utilization. A better way to tackle this limitation could be overcome by studying the recyclability of ionic liquid. The current study has applied the Box–Behnken design (BBD) to optimize the pretreatment condition of rice straw through the usage of 1-ethyl-3-methylimidazolium acetate (EMIM-Ac) as an ionic liquid. The model predicted the operation condition with 5% solid loading at 128.4 °C for 71.83 min as an optimum pretreatment condition. Under the optimized pretreatment condition, the necessity of the best anti-solvent was evaluated among water, acetone methanol, and their combinations. The study revealed that pure methanol is the suitable choice of anti-solvent, enhancing the highest sugar yield. Recyclability of EMIM-Ac coupled with anti-solvent was conducted up to five recycles following the predicted pretreatment condition. Fermentation studies evaluated the efficacy of recycled EMIM-Ac for ethanol production with 89% more ethanol production than the untreated rice straw even after five recycles. This study demonstrates the potential of recycled ionic liquid in ethanol production, thereby reducing the production cost at the industrial level. |
| first_indexed | 2024-03-09T13:49:51Z |
| format | Article |
| id | doaj.art-2a8ea081765b4291bb8ef216e48cb1b5 |
| institution | Directory Open Access Journal |
| issn | 2306-5354 |
| language | English |
| last_indexed | 2024-03-09T13:49:51Z |
| publishDate | 2022-03-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Bioengineering |
| spelling | doaj.art-2a8ea081765b4291bb8ef216e48cb1b52023-11-30T20:51:03ZengMDPI AGBioengineering2306-53542022-03-019311510.3390/bioengineering9030115Improvement of Enzymatic Saccharification and Ethanol Production from Rice Straw Using Recycled Ionic Liquid: The Effect of Anti-Solvent MixtureSanti Chuetor0Elizabeth Jayex Panakkal1Thanagorn Ruensodsai2Kraipat Cheenkachorn3Suchata Kirdponpattara4Yu-Shen Cheng5Malinee Sriariyanun6Department of Chemical Engineering, Faculty of Engineering, King Mongkut’s University of Technology North Bangkok, Bangkok 10800, ThailandDepartment of Chemical and Process Engineering, The Sirindhorn International Thai-German Graduate School of Engineering, King Mongkut’s University of Technology North Bangkok, Bangkok 10800,ThailandDepartment of Chemical and Process Engineering, The Sirindhorn International Thai-German Graduate School of Engineering, King Mongkut’s University of Technology North Bangkok, Bangkok 10800,ThailandDepartment of Chemical Engineering, Faculty of Engineering, King Mongkut’s University of Technology North Bangkok, Bangkok 10800, ThailandDepartment of Chemical Engineering, Faculty of Engineering, King Mongkut’s University of Technology North Bangkok, Bangkok 10800, ThailandDepartment of Chemical and Materials Engineering, National Yunlin University of Science and Technology, Yunlin 640, TaiwanDepartment of Chemical and Process Engineering, The Sirindhorn International Thai-German Graduate School of Engineering, King Mongkut’s University of Technology North Bangkok, Bangkok 10800,ThailandOne of the major concerns for utilizing ionic liquid on an industrial scale is the cost involved in the production. Despite its proven pretreatment efficiency, expenses involved in its usage hinder its utilization. A better way to tackle this limitation could be overcome by studying the recyclability of ionic liquid. The current study has applied the Box–Behnken design (BBD) to optimize the pretreatment condition of rice straw through the usage of 1-ethyl-3-methylimidazolium acetate (EMIM-Ac) as an ionic liquid. The model predicted the operation condition with 5% solid loading at 128.4 °C for 71.83 min as an optimum pretreatment condition. Under the optimized pretreatment condition, the necessity of the best anti-solvent was evaluated among water, acetone methanol, and their combinations. The study revealed that pure methanol is the suitable choice of anti-solvent, enhancing the highest sugar yield. Recyclability of EMIM-Ac coupled with anti-solvent was conducted up to five recycles following the predicted pretreatment condition. Fermentation studies evaluated the efficacy of recycled EMIM-Ac for ethanol production with 89% more ethanol production than the untreated rice straw even after five recycles. This study demonstrates the potential of recycled ionic liquid in ethanol production, thereby reducing the production cost at the industrial level.https://www.mdpi.com/2306-5354/9/3/115anti-solventenzymatic saccharificationEMIM-Acethanolionic liquidlignocellulosic biomass |
| spellingShingle | Santi Chuetor Elizabeth Jayex Panakkal Thanagorn Ruensodsai Kraipat Cheenkachorn Suchata Kirdponpattara Yu-Shen Cheng Malinee Sriariyanun Improvement of Enzymatic Saccharification and Ethanol Production from Rice Straw Using Recycled Ionic Liquid: The Effect of Anti-Solvent Mixture Bioengineering anti-solvent enzymatic saccharification EMIM-Ac ethanol ionic liquid lignocellulosic biomass |
| title | Improvement of Enzymatic Saccharification and Ethanol Production from Rice Straw Using Recycled Ionic Liquid: The Effect of Anti-Solvent Mixture |
| title_full | Improvement of Enzymatic Saccharification and Ethanol Production from Rice Straw Using Recycled Ionic Liquid: The Effect of Anti-Solvent Mixture |
| title_fullStr | Improvement of Enzymatic Saccharification and Ethanol Production from Rice Straw Using Recycled Ionic Liquid: The Effect of Anti-Solvent Mixture |
| title_full_unstemmed | Improvement of Enzymatic Saccharification and Ethanol Production from Rice Straw Using Recycled Ionic Liquid: The Effect of Anti-Solvent Mixture |
| title_short | Improvement of Enzymatic Saccharification and Ethanol Production from Rice Straw Using Recycled Ionic Liquid: The Effect of Anti-Solvent Mixture |
| title_sort | improvement of enzymatic saccharification and ethanol production from rice straw using recycled ionic liquid the effect of anti solvent mixture |
| topic | anti-solvent enzymatic saccharification EMIM-Ac ethanol ionic liquid lignocellulosic biomass |
| url | https://www.mdpi.com/2306-5354/9/3/115 |
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