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dc.creatorOliveira, Natália Leite-
dc.creatorRodrigues, Adrise Aparecida-
dc.creatorNeves, Isabelle Cristina Oliveira-
dc.creatorLago, Amanda Maria Teixeira-
dc.creatorBorges, Soraia Vilela-
dc.creatorResende, Jaime Vilela de-
dc.date.accessioned2020-04-17T12:07:00Z-
dc.date.available2020-04-17T12:07:00Z-
dc.date.issued2019-04-
dc.identifier.citationOLIVEIRA, N. L. et al. Development and characterization of biodegradable films based on Pereskia aculeata Miller mucilage. Industrial Crops and Products, [S. l.], v. 130, p. 499-510, Apr. 2019.pt_BR
dc.identifier.urihttps://www.sciencedirect.com/science/article/abs/pii/S0926669019300147#!pt_BR
dc.identifier.urihttp://repositorio.ufla.br/jspui/handle/1/40134-
dc.description.abstractOra-pro-nobis mucilage (MOPN) is a polysaccharide extracted from the leaves of Pereskia aculeata Miller (Cactaceae family), and is composed of the biopolymer arabinogalactan. The aim of this study was to evaluate the viability of MOPN-based films supplemented with glycerol. The films were developed using the casting technique in five treatments: 1.5% MOPN with 20% glycerol (w/w), 1.5% MOPN with 25% glycerol, 1.8% MOPN with 22.5% glycerol, 2.0% MOPN with 20% glycerol, and 2.0% MOPN with 25% glycerol. The films were characterized according to their rheological, optical, mechanical, thermal, and water vapor permeability (WVP) properties. The film-forming solution presented shear thinning and elastic behavior (G'>G"). Films with 1.5% MOPN and 20% glycerol presented greater elongation (46.10%), higher puncture strength 13.8 N, and lower WVP (8.288 g water·mm·day−1·m-²·kPa−1) than the other evaluated films. Glycerol acted as a cross-linking agent, increasing the bond between the MOPN chains, generating more rigid films. These films presented two glass transition temperatures, below 0 °C and around 60 °C. Thermogravimetry indicated that MOPN contributes to better thermal stability of the films. MOPN is a promising alternative for the use of biodegradable and/or edible packagings, and the best formulation studied was 1.5% MOPN and 20% glycerol.pt_BR
dc.languageen_USpt_BR
dc.publisherElsevierpt_BR
dc.rightsrestrictAccesspt_BR
dc.sourceIndustrial Crops and Productspt_BR
dc.subjectCross-linking agentpt_BR
dc.subjectGlycerolpt_BR
dc.subjectRheologypt_BR
dc.subjectEdible filmspt_BR
dc.subjectArabinogalactanpt_BR
dc.subjectAgente de reticulaçãopt_BR
dc.subjectGlicerolpt_BR
dc.subjectReologiapt_BR
dc.subjectFilmes comestíveispt_BR
dc.titleDevelopment and characterization of biodegradable films based on Pereskia aculeata Miller mucilagept_BR
dc.typeArtigopt_BR
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