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Production of Pectin-Cellulose Biofilms: A New Approach for Citrus Waste Recycling
University of Borås, Faculty of Textiles, Engineering and Business. (Swedish Centre for Resource Recovery)ORCID iD: 0000-0001-7103-4628
University of Borås, Faculty of Textiles, Engineering and Business. (Swedish Centre for Resource Recovery)ORCID iD: 0000-0002-1404-9134
University of Borås, Faculty of Textiles, Engineering and Business. (Swedish Centre for Resource Recovery)ORCID iD: 0000-0002-7377-0765
University of Borås, Faculty of Textiles, Engineering and Business. (Swedish Centre for Resource Recovery)
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2017 (English)In: International Journal of Polymer Science, ISSN 1687-9422, E-ISSN 1687-9430, Vol. 2017, p. 1-9, article id 9732329Article in journal (Refereed) Published
Abstract [en]

While citrus waste is abundantly generated, the disposal methods used today remain unsatisfactory: they can be deleterious for ruminants, can cause soil salinity, or are not economically feasible; yet citrus waste consists of various valuable polymers. This paper introduces a novel environmentally safe approach that utilizes citrus waste polymers as a biobased and biodegradable film, for example, for food packaging. Orange waste has been investigated for biofilm production, using the gelling ability of pectin and the strength of cellulosic fibres. A casting method was used to form a film from the previously washed, dried, and milled orange waste. Two film-drying methods, a laboratory oven and an incubator shaker, were compared. FE-SEM images confirmed a smoother film morphology when the incubator shaker was used for drying. The tensile strength of the films was 31.67 ± 4.21 and 34.76 ± 2.64 MPa, respectively, for the oven-dried and incubator-dried films, which is within the range of different commodity plastics. Additionally, biodegradability of the films was confirmed under anaerobic conditions. Films showed an opaque appearance with yellowish colour.

Place, publisher, year, edition, pages
2017. Vol. 2017, p. 1-9, article id 9732329
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Engineering and Technology
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URN: urn:nbn:se:hb:diva-12981DOI: 10.1155/2017/9732329ISI: 000414729600001OAI: oai:DiVA.org:hb-12981DiVA, id: diva2:1155880
Available from: 2017-11-09 Created: 2017-11-09 Last updated: 2017-12-14Bibliographically approved

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Bátori, VeronikaJabbari, MostafaÅkesson, DanLennartsson, Patrik R.Taherzadeh, Mohammad JZamani, Akram
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