Effects of Hydrothermal Processing on <i>Miscanthus × giganteus</i> Polysaccharides: A Kinetic Assessment
<i>Miscanthus × giganteus</i> samples were characterized for composition and treated with hot compressed water (hydrothermal or autohydrolysis treatments) at temperatures in the range of 190–240 °C. The liquid phases from treatments were analyzed to assess the breakdown of susceptible po...
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| Format: | Article |
| Language: | English |
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MDPI AG
2022-11-01
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| Series: | Polymers |
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| Online Access: | https://www.mdpi.com/2073-4360/14/21/4732 |
| _version_ | 1797466705862066176 |
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| author | Sandra Rivas Valentín Santos Juan Carlos Parajó |
| author_facet | Sandra Rivas Valentín Santos Juan Carlos Parajó |
| author_sort | Sandra Rivas |
| collection | DOAJ |
| description | <i>Miscanthus × giganteus</i> samples were characterized for composition and treated with hot compressed water (hydrothermal or autohydrolysis treatments) at temperatures in the range of 190–240 °C. The liquid phases from treatments were analyzed to assess the breakdown of susceptible polysaccharides into a scope of soluble intermediates and reaction products. The experimental concentration profiles determined for the target compounds (monosaccharides, higher saccharides, acetic acid and sugar-decomposition products) were interpreted using a pseudohomogeneous kinetic mechanism involving 27 reactions, which were governed by kinetic coefficients showing an Arrhenius-type temperature dependence. The corresponding activation energies were calculated and compared with data from the literature. The kinetic equations allowed a quantitative assessment of the experimental results, providing key information for process simulation and evaluation. |
| first_indexed | 2024-03-09T18:43:32Z |
| format | Article |
| id | doaj.art-d459c9e289fc4d1e9b204daa85440dcb |
| institution | Directory Open Access Journal |
| issn | 2073-4360 |
| language | English |
| last_indexed | 2024-03-09T18:43:32Z |
| publishDate | 2022-11-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Polymers |
| spelling | doaj.art-d459c9e289fc4d1e9b204daa85440dcb2023-11-24T06:31:00ZengMDPI AGPolymers2073-43602022-11-011421473210.3390/polym14214732Effects of Hydrothermal Processing on <i>Miscanthus × giganteus</i> Polysaccharides: A Kinetic AssessmentSandra Rivas0Valentín Santos1Juan Carlos Parajó2Faculty of Science, Chemical Engineering Department, University of Vigo (Campus Ourense), Polytechnical Building, As Lagoas, 32004 Ourense, SpainFaculty of Science, Chemical Engineering Department, University of Vigo (Campus Ourense), Polytechnical Building, As Lagoas, 32004 Ourense, SpainFaculty of Science, Chemical Engineering Department, University of Vigo (Campus Ourense), Polytechnical Building, As Lagoas, 32004 Ourense, Spain<i>Miscanthus × giganteus</i> samples were characterized for composition and treated with hot compressed water (hydrothermal or autohydrolysis treatments) at temperatures in the range of 190–240 °C. The liquid phases from treatments were analyzed to assess the breakdown of susceptible polysaccharides into a scope of soluble intermediates and reaction products. The experimental concentration profiles determined for the target compounds (monosaccharides, higher saccharides, acetic acid and sugar-decomposition products) were interpreted using a pseudohomogeneous kinetic mechanism involving 27 reactions, which were governed by kinetic coefficients showing an Arrhenius-type temperature dependence. The corresponding activation energies were calculated and compared with data from the literature. The kinetic equations allowed a quantitative assessment of the experimental results, providing key information for process simulation and evaluation.https://www.mdpi.com/2073-4360/14/21/4732<i>Miscanthus</i>autohydrolysiskinetic modelingpolysaccharidesvalue-added compounds |
| spellingShingle | Sandra Rivas Valentín Santos Juan Carlos Parajó Effects of Hydrothermal Processing on <i>Miscanthus × giganteus</i> Polysaccharides: A Kinetic Assessment Polymers <i>Miscanthus</i> autohydrolysis kinetic modeling polysaccharides value-added compounds |
| title | Effects of Hydrothermal Processing on <i>Miscanthus × giganteus</i> Polysaccharides: A Kinetic Assessment |
| title_full | Effects of Hydrothermal Processing on <i>Miscanthus × giganteus</i> Polysaccharides: A Kinetic Assessment |
| title_fullStr | Effects of Hydrothermal Processing on <i>Miscanthus × giganteus</i> Polysaccharides: A Kinetic Assessment |
| title_full_unstemmed | Effects of Hydrothermal Processing on <i>Miscanthus × giganteus</i> Polysaccharides: A Kinetic Assessment |
| title_short | Effects of Hydrothermal Processing on <i>Miscanthus × giganteus</i> Polysaccharides: A Kinetic Assessment |
| title_sort | effects of hydrothermal processing on i miscanthus giganteus i polysaccharides a kinetic assessment |
| topic | <i>Miscanthus</i> autohydrolysis kinetic modeling polysaccharides value-added compounds |
| url | https://www.mdpi.com/2073-4360/14/21/4732 |
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