Subcritical water hydrolysis of soybean residues for obtaining fermentable sugars
| Autor: | Marcus V. Tres, Giovani L. Zabot, Felipe Vedovatto, Helen Treichel, Gustavo A. Ugalde, Suzana F. Bazoti, Marcio A. Mazutti, Charline Bonatto |
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| Rok vydání: | 2021 |
| Předmět: |
Chemistry
020209 energy General Chemical Engineering Solid mass 02 engineering and technology 010501 environmental sciences Straw Condensed Matter Physics 01 natural sciences Hydrolysate Hydrolysis Yield (chemistry) 0202 electrical engineering electronic engineering information engineering Composition (visual arts) Food science Physical and Theoretical Chemistry 0105 earth and related environmental sciences |
| Zdroj: | The Journal of Supercritical Fluids. 167:105043 |
| ISSN: | 0896-8446 |
| DOI: | 10.1016/j.supflu.2020.105043 |
| Popis: | The objective of this study was to evaluate subcritical water hydrolysis (SWH) of soybean straw and hull for obtaining fermentable sugars in a semi-continuous mode. The experimental conditions investigated were temperature (180, 220 and 260 °C) and liquid/solid mass (R) ratio (9 g and 18 g water/g straw and 7.5 g and 15 g water/g hull). The hydrolysis was performed for 15 min at 25 MPa. The characterization of residues after hydrolysis and reducing sugars yield (YRS), efficiency (E) and composition of hydrolysates were evaluated. The condition of 220 °C/R-18 and R-15 provided the highest YRS of 9.56 ± 0.53 g/100 g straw at 4 min and 10.15 ± 0.50 g/100 g hull at 3 min of hydrolysis. The efficiencies were 23.65 ± 1.32 g/100 g carbohydrates and 23.04 ± 1.14 g/100 g carbohydrates for soybean straw and hull, respectively. SWH modified the structure of the residues and allowed the production of fermentable sugars. |
| Databáze: | OpenAIRE |
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