Study of the effect of bleaching agents on the crystalline index of cellulose-based materials derived from corn husk by CP/MAS 13C NMR and FT-IR spectroscopies

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datacite.alternateIdentifier.citationCarbohydrate Polymers, 346, 2024
datacite.alternateIdentifier.doi10.1016/j.carbpol.2024.122593
datacite.alternateIdentifier.issn0144-8617
datacite.creatorHuamani-Palomino, Ronny G.
datacite.creatorMayta, Sergio
datacite.creatorCórdova, Bryan M.
datacite.creatorYáñez-S, Mauricio
datacite.creatorVenâncio, Tiago
datacite.creatorRivera, Ernesto
datacite.creatorQuintana, María E.
datacite.date2024
datacite.rightsRegistro Bibliográfico
datacite.subjectBleaching Agents
datacite.subjectCellulose
datacite.subjectCorn Husk
datacite.subjectCrystalline Index
datacite.subjectCellulose
datacite.subjectPeracetic Acid
datacite.subjectBleaching
datacite.subjectFourier Transform Infrared Spectroscopy
datacite.subjectMercerization
datacite.subjectNear Infrared Spectroscopy
datacite.subjectNuclear Magnetic Resonance Spectroscopy
datacite.subjectBleaching Agents
datacite.subjectBleaching Process
datacite.subjectCellulose Based Materials
datacite.subjectCellulose Extraction
datacite.subjectCorn Husks
datacite.subjectCrystalline Index
datacite.subjectCrystalline Regions
datacite.subjectIndex Values
datacite.subjectIr-spectroscopy
datacite.subjectXrd
datacite.subjectCrystalline Materials
datacite.subjectCellulose Ii
datacite.subjectCorn Husks
datacite.subjectCrystalline Regions
datacite.subjectDiameter
datacite.subjectNuclear Magnetic Resonance
datacite.subjectProcesses
datacite.subjectBleaching Agent
datacite.subjectCellulose
datacite.subjectPeracetic Acid
datacite.subjectArticle
datacite.subjectBleaching
datacite.subjectCarbon Nuclear Magnetic Resonance
datacite.subjectDifferential Scanning Calorimetry
datacite.subjectDifferential Thermal Analysis
datacite.subjectFibril
datacite.subjectGlass Transition Temperature
datacite.subjectMaize
datacite.subjectNonhuman
datacite.subjectSolid State
datacite.subjectThermostability
datacite.titleStudy of the effect of bleaching agents on the crystalline index of cellulose-based materials derived from corn husk by CP/MAS 13C NMR and FT-IR spectroscopies
dc.description.abstractThis work proposes an evaluation of the Crystalline Index (CrI) in function of the bleaching process employed during cellulose extraction from corn husk, for further characterization using CP/MAS 13C NMR, XRD, and FT-IR. In that sense, CrI values were calculated by FT-IR and the bands associated with the crystalline and amorphous regions were observed at 1424 cm?1 and 896 cm?1, respectively. Similarly, the signals due to ordered (89.1 ppm) and disordered (84.2 ppm) cellulose chains were detected by solid-state 13C NMR, while the Segal equation was only used for comparison purposes. Additionally, PCA studies showed consistent results attributed to the crystalline region in cellulose domains analyzed by both, FT-IR and solid-state 13C NMR. The results revealed the coexistence of cellulose I/cellulose II and its effect on CrI, as well as the incomplete mercerization process, in some cases non-cellulosic residues can cause an overestimation of CrI. Additionally, the thermal stability and the glass transition temperature were determined by TGA/DTA and DSC analyses. Finally, a partially fibrillated-network morphology with a diameter of 20.47 ± 2.77 ?m was observed in cellulose bleached with peracetic acid, whereas organosolv method provides flexible and clean microfibrils with diameter sizes between 10 and 9 ?m. © 2024 Elsevier B.V., All rights reserved.
dc.identifier.issn1879-1344
dc.language.isoen
dc.publisherElsevier BV
dc.sourceCarbohydrate Polymers
dspace.entity.typePublication
oaire.citationEdition2024
oaire.citationTitleCarbohydrate Polymers
oaire.citationVolume346
oaire.fundingReferencePROCIENCIA Perú 204-FONDECYT-2020
oaire.licenseConditionCopyright © Elsevier Ltd, 2024
oaire.resourceTypeArtículo
oaire.resourceType.enArticle
uct.catalogadorjvu
uct.comunidadRecursos Naturalesen_US
uct.departamentoDepartamento de Ciencias Biológicas y Químicas
uct.facultadFacultad de Recursos Naturales
uct.indizacionScience Citation Index Expanded - SCIE
uct.indizacionScopus
uct.indizacionEi Compendex
uct.indizacionPubMed
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