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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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Autores principales: Chuetor, Santi, Panakkal, Elizabeth Jayex, Ruensodsai, Thanagorn, Cheenkachorn, Kraipat, Kirdponpattara, Suchata, Cheng, Yu-Shen, Sriariyanun, Malinee
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8944977/
https://www.ncbi.nlm.nih.gov/pubmed/35324804
http://dx.doi.org/10.3390/bioengineering9030115
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author Chuetor, Santi
Panakkal, Elizabeth Jayex
Ruensodsai, Thanagorn
Cheenkachorn, Kraipat
Kirdponpattara, Suchata
Cheng, Yu-Shen
Sriariyanun, Malinee
author_facet Chuetor, Santi
Panakkal, Elizabeth Jayex
Ruensodsai, Thanagorn
Cheenkachorn, Kraipat
Kirdponpattara, Suchata
Cheng, Yu-Shen
Sriariyanun, Malinee
author_sort Chuetor, Santi
collection PubMed
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.
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spelling pubmed-89449772022-03-25 Improvement of Enzymatic Saccharification and Ethanol Production from Rice Straw Using Recycled Ionic Liquid: The Effect of Anti-Solvent Mixture Chuetor, Santi Panakkal, Elizabeth Jayex Ruensodsai, Thanagorn Cheenkachorn, Kraipat Kirdponpattara, Suchata Cheng, Yu-Shen Sriariyanun, Malinee Bioengineering (Basel) Article 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. MDPI 2022-03-11 /pmc/articles/PMC8944977/ /pubmed/35324804 http://dx.doi.org/10.3390/bioengineering9030115 Text en © 2022 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Chuetor, Santi
Panakkal, Elizabeth Jayex
Ruensodsai, Thanagorn
Cheenkachorn, Kraipat
Kirdponpattara, Suchata
Cheng, Yu-Shen
Sriariyanun, Malinee
Improvement of Enzymatic Saccharification and Ethanol Production from Rice Straw Using Recycled Ionic Liquid: The Effect of Anti-Solvent Mixture
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 Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8944977/
https://www.ncbi.nlm.nih.gov/pubmed/35324804
http://dx.doi.org/10.3390/bioengineering9030115
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