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Recycling strategies for polyhydroxyalkanoate-based waste materials: An overview.
University of Borås, Faculty of Textiles, Engineering and Business. (Resursåtervinning)
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: 0000-0003-4887-2433
University of Borås, Faculty of Textiles, Engineering and Business.
2020 (English)In: Bioresource Technology, ISSN 0960-8524, E-ISSN 1873-2976, Vol. 298, article id 122393Article 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]

The plastics market is dominated by fossil-based polymers, but their gradual replacement by bioplastics (e.g., polyhydroxyalkanoates) is occurring. However, recycling strategies need to be developed to truly unveil the impact of bioplastics on waste accumulation. This review provides a state of the art of recycling strategies investigated for polyhydroxyalkanoate-based polymers and proposes future research avenues. Research on mechanical and chemical recycling is dominated by the use of extrusion and pyrolysis, respectively, while that on biodegradation of polyhydroxyalkanoates is related to soil and aquatic samples, and to anaerobic digestion towards biogas production. Research gaps exist in the relationships between polymer composition and ease of use of all recycling strategies investigated. This is of utmost importance since it will influence the need for separation at the source. Therefore, research emphasis needs to be given to the area to follow the continuous improvement of the process economics towards widespread commercial production of polyhydroxyalkanoates.

Place, publisher, year, edition, pages
2020. Vol. 298, article id 122393
Keywords [en]
Biodegradation, Extraction methods, Polyhydroxyalkanoates, Recycling methods, Wastes
National Category
Industrial Biotechnology
Research subject
Resource Recovery
Identifiers
URN: urn:nbn:se:hb:diva-22508DOI: 10.1016/j.biortech.2019.122393ISI: 000505201600041PubMedID: 31757612OAI: oai:DiVA.org:hb-22508DiVA, id: diva2:1386151
Available from: 2020-01-16 Created: 2020-01-16 Last updated: 2020-01-17Bibliographically approved

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Vu, Hoang DanhÅkesson, DanTaherzadeh, Mohammad JFerreira, Jorge

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