Effect of Acid Hydrolysis and Thermal Hydrolysis on Solubility and Properties of Oil Palm Empty Fruit Bunch Fiber Cellulose Hydrogel
Cellulose hydrogel was produced from pretreated oil palm empty fruit bunch fiber (EFB) that went through acid hydrolysis and thermal hydrolysis. The pretreated EFB was dissolved in LiOH/urea aqueous solution using the rapid dissolution method and was subjected to a crosslinking process with the aid...
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| Format: | Article |
| Language: | English |
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North Carolina State University
2015-11-01
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| Series: | BioResources |
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| Online Access: | http://ojs.cnr.ncsu.edu/index.php/BioRes/article/view/BioRes_11_1_126_Gan_Hydrolysis_Acid_Thermal_Fiber_Hydrogel |
| _version_ | 1828887799862919168 |
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| author | Sinyee Gan Sarani Zakaria Peivun Ng Chin Hua Chia Ruey Shan Chen |
| author_facet | Sinyee Gan Sarani Zakaria Peivun Ng Chin Hua Chia Ruey Shan Chen |
| author_sort | Sinyee Gan |
| collection | DOAJ |
| description | Cellulose hydrogel was produced from pretreated oil palm empty fruit bunch fiber (EFB) that went through acid hydrolysis and thermal hydrolysis. The pretreated EFB was dissolved in LiOH/urea aqueous solution using the rapid dissolution method and was subjected to a crosslinking process with the aid of epichlorohydrin to form hydrogel. The effects of both hydrolyses’ time on average molecular weight (Mŋ), solubility, and properties of EFB hydrogels were evaluated. Both hydrolyses led to lower Mŋ, lower crystallinity index (CrI) and hence, resulted in higher cellulose solubility. X-ray diffraction (XRD) characterization revealed the CrI and transition of crystalline structure of EFB from cellulose I to II. The effects of hydrolysis time on the transparency, degree of swelling (DS), and morphology of the regenerated cellulose hydrogel were also investigated using an ultraviolet-visible (UV-Vis) spectrophotometer and a Field emission scanning electron microscope (FESEM), respectively. These findings provide an efficient method to improve the solubility and properties of regenerated cellulose products. |
| first_indexed | 2024-12-13T12:11:07Z |
| format | Article |
| id | doaj.art-04f1519c81fa4424bd5d0f9954c46946 |
| institution | Directory Open Access Journal |
| issn | 1930-2126 1930-2126 |
| language | English |
| last_indexed | 2024-12-13T12:11:07Z |
| publishDate | 2015-11-01 |
| publisher | North Carolina State University |
| record_format | Article |
| series | BioResources |
| spelling | doaj.art-04f1519c81fa4424bd5d0f9954c469462022-12-21T23:46:50ZengNorth Carolina State UniversityBioResources1930-21261930-21262015-11-0111112613910.15376/biores.11.1.126-139Effect of Acid Hydrolysis and Thermal Hydrolysis on Solubility and Properties of Oil Palm Empty Fruit Bunch Fiber Cellulose HydrogelSinyee Gan0Sarani Zakaria1Peivun Ng2Chin Hua Chia3Ruey Shan Chen4Universiti Kebangsaan Malaysia; MalaysiaUniversiti Kebangsaan Malaysia; MalaysiaUniversiti Kebangsaan Malaysia; MalaysiaUniversiti Kebangsaan Malaysia; Malaysiainformation: School of Applied Physics, Faculty of Science and Technology, Universiti Kebangsaan Malaysia; MalaysiaCellulose hydrogel was produced from pretreated oil palm empty fruit bunch fiber (EFB) that went through acid hydrolysis and thermal hydrolysis. The pretreated EFB was dissolved in LiOH/urea aqueous solution using the rapid dissolution method and was subjected to a crosslinking process with the aid of epichlorohydrin to form hydrogel. The effects of both hydrolyses’ time on average molecular weight (Mŋ), solubility, and properties of EFB hydrogels were evaluated. Both hydrolyses led to lower Mŋ, lower crystallinity index (CrI) and hence, resulted in higher cellulose solubility. X-ray diffraction (XRD) characterization revealed the CrI and transition of crystalline structure of EFB from cellulose I to II. The effects of hydrolysis time on the transparency, degree of swelling (DS), and morphology of the regenerated cellulose hydrogel were also investigated using an ultraviolet-visible (UV-Vis) spectrophotometer and a Field emission scanning electron microscope (FESEM), respectively. These findings provide an efficient method to improve the solubility and properties of regenerated cellulose products.http://ojs.cnr.ncsu.edu/index.php/BioRes/article/view/BioRes_11_1_126_Gan_Hydrolysis_Acid_Thermal_Fiber_HydrogelUrea alkaline aqueous solutionMolecular weightCellulose pretreatmentRapid dissolutionRegenerated cellulose |
| spellingShingle | Sinyee Gan Sarani Zakaria Peivun Ng Chin Hua Chia Ruey Shan Chen Effect of Acid Hydrolysis and Thermal Hydrolysis on Solubility and Properties of Oil Palm Empty Fruit Bunch Fiber Cellulose Hydrogel BioResources Urea alkaline aqueous solution Molecular weight Cellulose pretreatment Rapid dissolution Regenerated cellulose |
| title | Effect of Acid Hydrolysis and Thermal Hydrolysis on Solubility and Properties of Oil Palm Empty Fruit Bunch Fiber Cellulose Hydrogel |
| title_full | Effect of Acid Hydrolysis and Thermal Hydrolysis on Solubility and Properties of Oil Palm Empty Fruit Bunch Fiber Cellulose Hydrogel |
| title_fullStr | Effect of Acid Hydrolysis and Thermal Hydrolysis on Solubility and Properties of Oil Palm Empty Fruit Bunch Fiber Cellulose Hydrogel |
| title_full_unstemmed | Effect of Acid Hydrolysis and Thermal Hydrolysis on Solubility and Properties of Oil Palm Empty Fruit Bunch Fiber Cellulose Hydrogel |
| title_short | Effect of Acid Hydrolysis and Thermal Hydrolysis on Solubility and Properties of Oil Palm Empty Fruit Bunch Fiber Cellulose Hydrogel |
| title_sort | effect of acid hydrolysis and thermal hydrolysis on solubility and properties of oil palm empty fruit bunch fiber cellulose hydrogel |
| topic | Urea alkaline aqueous solution Molecular weight Cellulose pretreatment Rapid dissolution Regenerated cellulose |
| url | http://ojs.cnr.ncsu.edu/index.php/BioRes/article/view/BioRes_11_1_126_Gan_Hydrolysis_Acid_Thermal_Fiber_Hydrogel |
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