A Simultaneous Conversion and Extraction of Furfural from Pentose in Dilute Acid Hydrolysate of <i>Quercus mongolica</i> Using an Aqueous Biphasic System
This study optimizes furfural production from pentose released in the liquid hydrolysate of hardwood using an aqueous biphasic system. Dilute acid pretreatment with 4% sulfuric acid was conducted to extract pentose from liquid <i>Quercus mongolica</i> hydrolysate. To produce furfural fro...
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2020-12-01
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| author | Jong-Hwa Kim Seong-Min Cho June-Ho Choi Hanseob Jeong Soo Min Lee Bonwook Koo In-Gyu Choi |
| author_facet | Jong-Hwa Kim Seong-Min Cho June-Ho Choi Hanseob Jeong Soo Min Lee Bonwook Koo In-Gyu Choi |
| author_sort | Jong-Hwa Kim |
| collection | DOAJ |
| description | This study optimizes furfural production from pentose released in the liquid hydrolysate of hardwood using an aqueous biphasic system. Dilute acid pretreatment with 4% sulfuric acid was conducted to extract pentose from liquid <i>Quercus mongolica</i> hydrolysate. To produce furfural from xylose, a xylose standard solution with the same acid concentration of the liquid hydrolysate and extracting solvent (tetrahydrofuran) were applied to the aqueous biphasic system. A response surface methodology was adopted to optimize furfural production in the aqueous biphasic system. A maximum furfural yield of 72.39% was achieved at optimal conditions as per the RSM; a reaction temperature of 170 °C, reaction time of 120 min, and a xylose concentration of 10 g/L. Tetrahydrofuran, toluene, and dimethyl sulfoxide were evaluated to understand the effects of the solvent on furfural production. Tetrahydrofuran generated the highest furfural yield, while DMSO gave the lowest yield. A furfural yield of 68.20% from pentose was achieved in the liquid hydrolysate of <i>Quercus mongolica</i> under optimal conditions using tetrahydrofuran as the extracting solvent. The aqueous and tetrahydrofuran fractions were separated from the aqueous biphasic solvent by salting out using sodium chloride, and 94.63% of the furfural produced was drawn out through two extractions using tetrahydrofuran. |
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| last_indexed | 2024-03-10T13:45:51Z |
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| spelling | doaj.art-c71067afa0e54418ba5f8842d0290e832023-11-21T02:40:29ZengMDPI AGApplied Sciences2076-34172020-12-0111116310.3390/app11010163A Simultaneous Conversion and Extraction of Furfural from Pentose in Dilute Acid Hydrolysate of <i>Quercus mongolica</i> Using an Aqueous Biphasic SystemJong-Hwa Kim0Seong-Min Cho1June-Ho Choi2Hanseob Jeong3Soo Min Lee4Bonwook Koo5In-Gyu Choi6Department of Forest Sciences College of Agriculture and Life Sciences, Seoul National University, Seoul 08826, KoreaDepartment of Forest Sciences College of Agriculture and Life Sciences, Seoul National University, Seoul 08826, KoreaDepartment of Forest Sciences College of Agriculture and Life Sciences, Seoul National University, Seoul 08826, KoreaWood Chemistry Division, Forest Products Department, National Institute of Forest Science, Seoul 02455, KoreaWood Chemistry Division, Forest Products Department, National Institute of Forest Science, Seoul 02455, KoreaGreen and Sustainable Materials R & D Department, Korea Institute of Industrial Technology, Cheonan-si 31056, KoreaDepartment of Agriculture, Forestry, and Bioresources, College of Agriculture and Life Sciences, Seoul National University, Seoul 08826, KoreaThis study optimizes furfural production from pentose released in the liquid hydrolysate of hardwood using an aqueous biphasic system. Dilute acid pretreatment with 4% sulfuric acid was conducted to extract pentose from liquid <i>Quercus mongolica</i> hydrolysate. To produce furfural from xylose, a xylose standard solution with the same acid concentration of the liquid hydrolysate and extracting solvent (tetrahydrofuran) were applied to the aqueous biphasic system. A response surface methodology was adopted to optimize furfural production in the aqueous biphasic system. A maximum furfural yield of 72.39% was achieved at optimal conditions as per the RSM; a reaction temperature of 170 °C, reaction time of 120 min, and a xylose concentration of 10 g/L. Tetrahydrofuran, toluene, and dimethyl sulfoxide were evaluated to understand the effects of the solvent on furfural production. Tetrahydrofuran generated the highest furfural yield, while DMSO gave the lowest yield. A furfural yield of 68.20% from pentose was achieved in the liquid hydrolysate of <i>Quercus mongolica</i> under optimal conditions using tetrahydrofuran as the extracting solvent. The aqueous and tetrahydrofuran fractions were separated from the aqueous biphasic solvent by salting out using sodium chloride, and 94.63% of the furfural produced was drawn out through two extractions using tetrahydrofuran.https://www.mdpi.com/2076-3417/11/1/163aqueous biphasic systemdilute acid hydrolysatefurfural productionsolvent extractionresponse surface methodology |
| spellingShingle | Jong-Hwa Kim Seong-Min Cho June-Ho Choi Hanseob Jeong Soo Min Lee Bonwook Koo In-Gyu Choi A Simultaneous Conversion and Extraction of Furfural from Pentose in Dilute Acid Hydrolysate of <i>Quercus mongolica</i> Using an Aqueous Biphasic System Applied Sciences aqueous biphasic system dilute acid hydrolysate furfural production solvent extraction response surface methodology |
| title | A Simultaneous Conversion and Extraction of Furfural from Pentose in Dilute Acid Hydrolysate of <i>Quercus mongolica</i> Using an Aqueous Biphasic System |
| title_full | A Simultaneous Conversion and Extraction of Furfural from Pentose in Dilute Acid Hydrolysate of <i>Quercus mongolica</i> Using an Aqueous Biphasic System |
| title_fullStr | A Simultaneous Conversion and Extraction of Furfural from Pentose in Dilute Acid Hydrolysate of <i>Quercus mongolica</i> Using an Aqueous Biphasic System |
| title_full_unstemmed | A Simultaneous Conversion and Extraction of Furfural from Pentose in Dilute Acid Hydrolysate of <i>Quercus mongolica</i> Using an Aqueous Biphasic System |
| title_short | A Simultaneous Conversion and Extraction of Furfural from Pentose in Dilute Acid Hydrolysate of <i>Quercus mongolica</i> Using an Aqueous Biphasic System |
| title_sort | simultaneous conversion and extraction of furfural from pentose in dilute acid hydrolysate of i quercus mongolica i using an aqueous biphasic system |
| topic | aqueous biphasic system dilute acid hydrolysate furfural production solvent extraction response surface methodology |
| url | https://www.mdpi.com/2076-3417/11/1/163 |
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