Development of non-derivatizing hydrate salt pre-treatment solvent for pre-treatment and fractionation of corn cob
Major concern in beneficiating lignocellulose is overcoming biomass recalcitrance through pre-treatment. Molten hydrate salts (MHS) is a green solvent with ability to swell and dissolve cellulose and biomass in a non-derivatizing way. Over the last decade, MHSs have been used for isolated cellulose...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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Taylor & Francis Group
2021-01-01
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| Series: | Cogent Engineering |
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| Online Access: | http://dx.doi.org/10.1080/23311916.2021.1947444 |
| _version_ | 1797706935399612416 |
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| author | Olayile Ejekwu Augustine Omoniyi Ayeni Olawumi Sadare Michael Olawale Daramola |
| author_facet | Olayile Ejekwu Augustine Omoniyi Ayeni Olawumi Sadare Michael Olawale Daramola |
| author_sort | Olayile Ejekwu |
| collection | DOAJ |
| description | Major concern in beneficiating lignocellulose is overcoming biomass recalcitrance through pre-treatment. Molten hydrate salts (MHS) is a green solvent with ability to swell and dissolve cellulose and biomass in a non-derivatizing way. Over the last decade, MHSs have been used for isolated cellulose dissolution, however very few studies have been reported on their effectiveness in pre-treating lignocellulosic biomass. Therefore, effectiveness of their application as solvent for pre-treating and fractionating corn cob is presented in this article. In this study, seven molten hydrate salt pre-treatment solvent systems such as unary, binary and ternary mixtures of ZnCl2.4H2O, LiClO4.3H2O and Urea were investigated for their ability to pre-treat and fractionate biomass. The pre-treatment experiments were carried out in a shaking incubator at 70°C for 60 minutes at a biomass: solvent ratio of 1:10. The surface chemistry of the biomass was checked before and after pre-treatment using Fourier Transform infrared spectroscopy. X-ray diffraction and scanning electron microscopy were employed to check the crystallinity and surface morphology of the biomass. Physicochemical analysis consistently indicated a disruption in the structure of corncob due to removal of lignin and hemicellulose during the pre-treatment process. Additionally, results showed a decrease in crystallinity and a change in surface morphology after the pre-treatment using all the seven solvent systems (MHS solvents). The use of ZnCl2.4H2O/ Urea solvent displayed 100% recovery of cellulose, 42% recovery of hemicellulose and 44% recovery of lignin from the corn-cob when compared to the performance of the other proposed solvent systems in this study. |
| first_indexed | 2024-03-12T05:58:46Z |
| format | Article |
| id | doaj.art-9270a3107c1245fdbfc41b589f2a043a |
| institution | Directory Open Access Journal |
| issn | 2331-1916 |
| language | English |
| last_indexed | 2024-03-12T05:58:46Z |
| publishDate | 2021-01-01 |
| publisher | Taylor & Francis Group |
| record_format | Article |
| series | Cogent Engineering |
| spelling | doaj.art-9270a3107c1245fdbfc41b589f2a043a2023-09-03T04:21:28ZengTaylor & Francis GroupCogent Engineering2331-19162021-01-018110.1080/23311916.2021.19474441947444Development of non-derivatizing hydrate salt pre-treatment solvent for pre-treatment and fractionation of corn cobOlayile Ejekwu0Augustine Omoniyi Ayeni1Olawumi Sadare2Michael Olawale Daramola3The Built Environment, and Information Technology, University of PretoriaCollege of Engineering, Covenant UniversityThe Built Environment, and Information Technology, University of PretoriaThe Built Environment, and Information Technology, University of PretoriaMajor concern in beneficiating lignocellulose is overcoming biomass recalcitrance through pre-treatment. Molten hydrate salts (MHS) is a green solvent with ability to swell and dissolve cellulose and biomass in a non-derivatizing way. Over the last decade, MHSs have been used for isolated cellulose dissolution, however very few studies have been reported on their effectiveness in pre-treating lignocellulosic biomass. Therefore, effectiveness of their application as solvent for pre-treating and fractionating corn cob is presented in this article. In this study, seven molten hydrate salt pre-treatment solvent systems such as unary, binary and ternary mixtures of ZnCl2.4H2O, LiClO4.3H2O and Urea were investigated for their ability to pre-treat and fractionate biomass. The pre-treatment experiments were carried out in a shaking incubator at 70°C for 60 minutes at a biomass: solvent ratio of 1:10. The surface chemistry of the biomass was checked before and after pre-treatment using Fourier Transform infrared spectroscopy. X-ray diffraction and scanning electron microscopy were employed to check the crystallinity and surface morphology of the biomass. Physicochemical analysis consistently indicated a disruption in the structure of corncob due to removal of lignin and hemicellulose during the pre-treatment process. Additionally, results showed a decrease in crystallinity and a change in surface morphology after the pre-treatment using all the seven solvent systems (MHS solvents). The use of ZnCl2.4H2O/ Urea solvent displayed 100% recovery of cellulose, 42% recovery of hemicellulose and 44% recovery of lignin from the corn-cob when compared to the performance of the other proposed solvent systems in this study.http://dx.doi.org/10.1080/23311916.2021.1947444molten hydrate saltspre-treatmentfractionationcorn cob |
| spellingShingle | Olayile Ejekwu Augustine Omoniyi Ayeni Olawumi Sadare Michael Olawale Daramola Development of non-derivatizing hydrate salt pre-treatment solvent for pre-treatment and fractionation of corn cob Cogent Engineering molten hydrate salts pre-treatment fractionation corn cob |
| title | Development of non-derivatizing hydrate salt pre-treatment solvent for pre-treatment and fractionation of corn cob |
| title_full | Development of non-derivatizing hydrate salt pre-treatment solvent for pre-treatment and fractionation of corn cob |
| title_fullStr | Development of non-derivatizing hydrate salt pre-treatment solvent for pre-treatment and fractionation of corn cob |
| title_full_unstemmed | Development of non-derivatizing hydrate salt pre-treatment solvent for pre-treatment and fractionation of corn cob |
| title_short | Development of non-derivatizing hydrate salt pre-treatment solvent for pre-treatment and fractionation of corn cob |
| title_sort | development of non derivatizing hydrate salt pre treatment solvent for pre treatment and fractionation of corn cob |
| topic | molten hydrate salts pre-treatment fractionation corn cob |
| url | http://dx.doi.org/10.1080/23311916.2021.1947444 |
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