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Cellulose Nanofibrils from Sugarcane Bagasse as a Reinforcing Element in Polyvinyl Alcohol Composite Films for Food Packaging

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dc.contributor.authorOtenda Brian Victor
dc.contributor.authorKareru Patrick Gachoki
dc.contributor.authorMadivoli Edwin Shigwenya
dc.contributor.authorMaina Ernest Gachui
dc.contributor.authorWanakai Sammy Indire
dc.contributor.authorWanyonyi Wycliffe Chisutia
dc.date.accessioned2024-07-09T22:49:15Z
dc.date.issued2022
dc.descriptionArticle
dc.description.abstractDue to a high aspect ratio and enhanced mechanical strength, cellulose nanofibrils can be used as reinforcing elements in biocomposite films. In this study, cellulose nanofibrils were isolated from sugarcane bagasse using TEMPO-mediated oxidation and used to reinforce polyvinyl alcohol (PVA) films. The carboxyl group content, functional groups, crystallinity, thermal properties, and morphology of the nanofibrils were investigated. The influence of TOCNF content on the transmittance, swelling, and tensile strength of PVA-TOCNF films were investigated by varying the TOCNF content of PVA films. The fibrils had a carboxyl content of 12.2 ± 0.6 mg/g CE due to the presence of carboxylic groups, an increased degree of crystallinity, and highly porous nanofibrils with lengths between 150 nm and 600 nm. Incorporation of the isolated fiber on PVA films increased the swelling capacity, tensile strength, and UV absorption but a decrease in the solubility of the composite. An increase in the TOCNF content increased the tensile strength of the films with the highest tensile strength of 6.6 ± 2.2 kPa being observed when the TOCNF content was 30%. The improvement in films properties implies that the films can be used as a packaging material due to enhanced water absorption and light-barrier properties.
dc.description.sponsorshipNational research fund, AFRICA-aiJAPAN project JFY 2018/2019, Jomo Kenyatta University of Agriculture, and Technology
dc.identifier.citationOtenda, B. V., Kareru, P. G., Madivoli, E. S., Maina, E. G., Wanakai, S. I., & Wanyonyi, W. C. (2022). Cellulose nanofibrils from sugarcane bagasse as a reinforcing element in polyvinyl alcohol composite films for food packaging. Journal of Natural Fibers, 19(10), 3585-3597.
dc.identifier.urihttps://doi.org/10.1080/15440478.2020.1848712
dc.identifier.urihttps://repository.nrf.go.ke/handle/123456789/1224
dc.language.isoen
dc.publisherTaylor and Francis
dc.subjectCellulose
dc.subjecttempo
dc.subjectcharacterization
dc.subjectmorphology
dc.titleCellulose Nanofibrils from Sugarcane Bagasse as a Reinforcing Element in Polyvinyl Alcohol Composite Films for Food Packaging
dc.typeArticle
dspace.entity.typePublication

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