Please use this identifier to cite or link to this item: http://hdl.handle.net/10261/221964
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Title

Valorisation of vine shoots for the development of cellulose-based biocomposite films with improved performance and bioactivity

AuthorsBenito González, Isaac; Jaén Cano, C.M.; López-Rubio, Amparo CSIC ORCID; Martínez-Abad, Antonio CSIC ORCID CVN; Martínez Sanz, Marta CSIC ORCID
KeywordsCellulosic fractions
Bio-based packaging
Vine shoots
Waste biomass
Agar
Issue Date3-Oct-2020
PublisherElsevier
CitationInternational Journal of Biological Macromolecules 165: 1540-1551 (2020)
AbstractThis work reports on the valorization of Tempranillo vine shoots for the development of bio-based packaging materials. Cellulose (F3) and nanocellulose (NANO F3) were produced by the conventional method, while less purified cellulosic fractions (F2A) and nanocrystals (NANO F2A) were extracted by simplified protocols (omitting Soxhlet and alkaline treatments) to reduce production costs and environmental impact and evaluate the potential added functionalities of these less purified materials. Although most of the hemicelluloses in F2A were digested upon acid hydrolysis, a small fraction remained in NANO F2A. On the other hand, the presence of a minor xylan fraction in F3 limited the access of sulphuric acid towards the cellulose microfibrils, hindering hydrolysis and producing heterogeneous fibrillar structures in NANO F3. The obtained materials were used to produce cellulosic films, as well as blends with agar, and their performance properties were evaluated. Overall, NANO F2A films showed the best compromise between performance and sustainability and presented additional antioxidant capacity. The properties of the films could be adjusted by the incorporation of agar, improving their ductility and water permeability.
Publisher version (URL)https://doi.org/10.1016/j.ijbiomac.2020.09.240
URIhttp://hdl.handle.net/10261/221964
DOI10.1016/j.ijbiomac.2020.09.240
ISSN0141-8130
Appears in Collections:(IATA) Artículos




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