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dc.contributor.authorRamos Andrés, Marta 
dc.contributor.authorHu, Liqiu
dc.contributor.authorGrénman, Henrik
dc.contributor.authorXu, Chunlin
dc.contributor.authorGarcía Serna, Juan 
dc.date.accessioned2024-12-20T11:30:48Z
dc.date.available2024-12-20T11:30:48Z
dc.date.issued2024
dc.identifier.citationJournal of Environmental Chemical Engineering,vol. 12, n. 3, 112645es
dc.identifier.issn2213-3437es
dc.identifier.urihttps://uvadoc.uva.es/handle/10324/72949
dc.descriptionProducción Científicaes
dc.description.abstractDiscarded carrots were repurposed to produced bio-based films through a pilot-scale hydrothermal treatment of the pulp. The process, conducted at 140 °C and 180 °C using single and multiple flow-through reactors, successfully extracted high molecular weight pectin-containing arabinogalactan (P-AG). Separation and purification through ultrafiltration and diafiltration yielded fractions with molecular weights ranging from 3.48 to 102.75 kDa. The solid residue from the hydrothermal process was subjected to mechanical treatments to obtain lignin-containing cellulose nanofibers (L-CNFs). Comparative analysis showed the P-AG film possessed superior oxygen barrier properties (67.73 vs. 239.83 cm3·µm/m2/kPa/day), while the L-CNFs film displayed higher tensile strength (7.74 vs. 3.14 MPa). Combining both fractions revealed that L-CNFs could be incorporated at percentages exceeding 15% (w/w) without compromising the P-AG-based film’s integrity, resulting in a 57.5% increase in water contact angle (125.8°). In examining P-AG samples, a higher molecular weight reduced oxygen permeability by 14.6% (41.14 cm3·µm/m2/kPa/day) but increased the water vapor permeability by 11.4% (2.78·10−10 g·m/m2/s/Pa). Tensile strength showed a 150.9% increase at lower molecular weights and higher pectin content (2.84 MPa), attributed to arabinogalactan’s pronounced branching. Elongation increased by 157.9% at higher arabinogalactan content (15.28%). This study achieved a groundbreaking milestone by obtaining purified fractions of P-AG and L-CNFs from carrot waste, demonstrating promising film properties suitable for food packaging applications.es
dc.format.mimetypeapplication/pdfes
dc.language.isoenges
dc.publisherElsevieres
dc.rights.accessRightsinfo:eu-repo/semantics/openAccesses
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/*
dc.subject.classificationFood-packaginges
dc.subject.classificationHemicellulosees
dc.subject.classificationHomogalacturonanes
dc.subject.classificationCNFses
dc.subject.classificationPurificationes
dc.subject.classificationBiorefineryes
dc.titleUpcycling of carrot waste into pectin-arabinogalactan and lignin-cellulose films via hydrothermal treatment, ultrafiltration/diafiltration, and castinges
dc.typeinfo:eu-repo/semantics/articlees
dc.rights.holder© 2024 The Authorses
dc.identifier.doi10.1016/j.jece.2024.112645es
dc.relation.publisherversionhttps://www.sciencedirect.com/science/article/pii/S2213343724007759es
dc.identifier.publicationfirstpage112645es
dc.identifier.publicationissue3es
dc.identifier.publicationtitleJournal of Environmental Chemical Engineeringes
dc.identifier.publicationvolume12es
dc.peerreviewedSIes
dc.description.projectMinisterio de Ciencia e Innovación (PID2019–105975GB-I00)es
dc.description.projectJunta de Castilla y León/FEDER (CLU-2019–04)es
dc.description.projectMinisterio de Educación, Culturay Deporte (FPU15/06366)es
dc.description.projectChina Scholarship Council (Student ID 201908120107)es
dc.rightsAtribución 4.0 Internacional*
dc.type.hasVersioninfo:eu-repo/semantics/publishedVersiones


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