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The Effect of Glycerol, Sugar, and Maleic Anhydride on Pectin-Cellulose Thin Films Prepared from Orange Waste
University of Borås, Faculty of Textiles, Engineering and Business.ORCID iD: 0000-0001-7103-4628
University of Borås, Faculty of Textiles, Engineering and Business.
University of Borås, Faculty of Textiles, Engineering and Business.ORCID iD: 0000-0002-7377-0765
University of Borås, Faculty of Textiles, Engineering and Business.ORCID iD: 0000-0003-3418-1762
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2019 (English)In: POLYMERS, Vol. 11, no 3Article in journal (Refereed) Published
Sustainable development
According to the author(s), the content of this publication falls within the area of sustainable development.
Abstract [en]

This study was conducted to improve the properties of thin films prepared from orange waste by the solution casting method. The main focus was the elimination of holes in the film structure by establishing better cohesion between the major cellulosic and pectin fractions. For this, a previously developed method was improved first by the addition of sugar to promote pectin gelling, then by the addition of maleic anhydride. Principally, maleic anhydride was introduced to the films to induce cross-linking within the film structure. The effects of concentrations of sugar and glycerol as plasticizers and maleic anhydride as a cross-linking agent on the film characteristics were studied. Maleic anhydride improved the structure, resulting in a uniform film, and morphology studies showed better adhesion between components. However, it did not act as a cross-linking agent, but rather as a compatibilizer. The middle level (0.78%) of maleic anhydride content resulted in the highest tensile strength (26.65 +/- 3.20 MPa) at low (7%) glycerol and high (14%) sugar levels and the highest elongation (28.48% +/- 4.34%) at high sugar and glycerol levels. To achieve a uniform film surface with no holes present, only the lowest (0.39%) level of maleic anhydride was necessary.

Place, publisher, year, edition, pages
2019. Vol. 11, no 3
Keywords [en]
bio-based, film, mechanical properties, polysaccharides, resource recovery, solution casting, orange waste
National Category
Industrial Biotechnology
Research subject
Resource Recovery; Resource Recovery
Identifiers
URN: urn:nbn:se:hb:diva-21529DOI: 10.3390/polym11030392ISI: 000464512900002Scopus ID: 2-s2.0-85066752753OAI: oai:DiVA.org:hb-21529DiVA, id: diva2:1340812
Available from: 2019-08-06 Created: 2019-08-06 Last updated: 2019-08-07

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Bátori, VeronikaLundin, MagnusÅkesson, DanLennartsson, Patrik R.Taherzadeh, Mohammad JZamani, Akram

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Bátori, VeronikaLundin, MagnusÅkesson, DanLennartsson, Patrik R.Taherzadeh, Mohammad JZamani, Akram
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