Agro-industrial residue from starch extraction of Pachyrhizus ahipa as filler of thermoplastic corn starch films

dc.creatorLopez, Olivia Valeria
dc.creatorVersino, Florencia
dc.creatorVillar, Marcelo Armando
dc.creatorGarcia, Maria Alejandra
dc.date.accessioned2016-12-29T18:30:49Z
dc.date.accessioned2018-11-06T14:27:26Z
dc.date.available2016-12-29T18:30:49Z
dc.date.available2018-11-06T14:27:26Z
dc.date.created2016-12-29T18:30:49Z
dc.date.issued2015-12-10
dc.identifierLopez, Olivia Valeria; Versino, Florencia; Villar, Marcelo Armando; Garcia, Maria Alejandra; Agro-industrial residue from starch extraction of Pachyrhizus ahipa as filler of thermoplastic corn starch films; Elsevier; Carbohydrate Polymers; 134; 10-12-2015; 324-332
dc.identifier0144-8617
dc.identifierhttp://hdl.handle.net/11336/10621
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/1886561
dc.description.abstractBiocomposites films based on thermoplastic corn starch (TPS) containing 0.5% w/w fibrous residue from Pachyrhizus ahipa starchextraction(PASR) were obtainedbymelt-mixing andcompressionmolding. PASR ismainly constituted by remaining cell walls and naturalfibers, revealed by Scanning ElectronMicroscopy (SEM). Chemical composition of the residue indicated that fiber and starch were the principal components. Biocomposites thermo-stability was determined by Thermo-Gravimetric Analysis. A continuous PASR-TPS interface was observed by SEM, as a result of a good adhesion of the fibrous residue to starch matrix. Likewise, films containing PASR presented fewer superficial cracks than TPS ones, whereas their fracture surfaces were more irregular. Besides, the presence of PASR increased starch films roughness, due to fibers agglomerates. Films reinforced with PASR showed significantly lower water vapor permeability (WVP). In addition, PARS filler increased maximum tensile strength and Young’s modulus of TPS films, thus leading to more resistant starch matrixes.
dc.languageeng
dc.publisherElsevier
dc.relationinfo:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1016/j.carbpol.2015.07.081
dc.relationinfo:eu-repo/semantics/altIdentifier/url/http://www.sciencedirect.com/science/article/pii/S0144861715007109
dc.rightshttps://creativecommons.org/licenses/by-nc-nd/2.5/ar/
dc.rightsinfo:eu-repo/semantics/restrictedAccess
dc.subjectThermoplastic starch
dc.subjectFibrous residue
dc.subjectBiocomposite films
dc.subjectStructure characterization
dc.subjectBarrier and mechanical properties
dc.titleAgro-industrial residue from starch extraction of Pachyrhizus ahipa as filler of thermoplastic corn starch films
dc.typeArtículos de revistas
dc.typeArtículos de revistas
dc.typeArtículos de revistas


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