Publication
Obtention and characterization of microcrystalline cellulose from industrial melon residues following a biorefinery approach
| dc.contributor.author | Gómez-García, Ricardo | |
| dc.contributor.author | Sousa, Sérgio C. | |
| dc.contributor.author | Ramos, Óscar L. | |
| dc.contributor.author | Campos, Débora A. | |
| dc.contributor.author | Aguilar, Cristóbal N. | |
| dc.contributor.author | Madureira, Ana R. | |
| dc.contributor.author | Pintado, Manuela | |
| dc.date.accessioned | 2024-08-08T10:30:00Z | |
| dc.date.available | 2024-08-08T10:30:00Z | |
| dc.date.issued | 2024-07-11 | |
| dc.description.abstract | Residual melon by-products were explored for the first time as a bioresource of microcrystalline cellulose (MCC) obtention. Two alkaline extraction methods were employed, the traditional (4.5% NaOH, 2 h, 80 °C) and a thermo-alkaline in the autoclave (2% NaOH, 1 h, 100 °C), obtaining a yield of MCC ranging from 4.76 to 9.15% and 2.32 to 3.29%, respectively. The final MCCs were characterized for their chemical groups by Fourier-transform infrared spectroscopy (FTIR), crystallinity with X-ray diffraction, and morphology analyzed by scanning electron microscope (SEM). FTIR spectra showed that the traditional protocol allows for a more effective hemicellulose and lignin removal from the melon residues than the thermo-alkaline process. The degree of crystallinity of MCC ranged from 51.51 to 61.94% and 54.80 to 55.07% for the thermo-alkaline and traditional processes, respectively. The peaks detected in X-ray diffraction patterns indicated the presence of Type I cellulose. SEM analysis revealed microcrystals with rough surfaces and great porosity, which could remark their high-water absorption capacity and drug-carrier capacities. Thus, these findings could respond to the need to valorize industrial melon by-products as raw materials for MCC obtention with potential applications as biodegradable materials. | pt_PT |
| dc.description.version | info:eu-repo/semantics/publishedVersion | pt_PT |
| dc.identifier.doi | 10.3390/molecules29143285 | pt_PT |
| dc.identifier.eid | 85199628949 | |
| dc.identifier.issn | 1420-3049 | |
| dc.identifier.pmid | 39064864 | |
| dc.identifier.uri | http://hdl.handle.net/10400.14/46112 | |
| dc.identifier.wos | 001277564000001 | |
| dc.language.iso | eng | pt_PT |
| dc.peerreviewed | yes | pt_PT |
| dc.rights.uri | http://creativecommons.org/licenses/by/4.0/ | pt_PT |
| dc.subject | Biopolymer | pt_PT |
| dc.subject | Circular bioeconomy | pt_PT |
| dc.subject | Crystalline cellulose | pt_PT |
| dc.subject | Food-waste biorefinery | pt_PT |
| dc.subject | Melon residues | pt_PT |
| dc.subject | X-ray diffraction | pt_PT |
| dc.title | Obtention and characterization of microcrystalline cellulose from industrial melon residues following a biorefinery approach | pt_PT |
| dc.type | journal article | |
| dspace.entity.type | Publication | |
| oaire.citation.issue | 14 | pt_PT |
| oaire.citation.title | Molecules | pt_PT |
| oaire.citation.volume | 29 | pt_PT |
| rcaap.rights | openAccess | pt_PT |
| rcaap.type | article | pt_PT |