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Campo DC | Valor | Idioma |
---|---|---|
dc.creator | Oliveira, Natália Leite | - |
dc.creator | Rodrigues, Adrise Aparecida | - |
dc.creator | Neves, Isabelle Cristina Oliveira | - |
dc.creator | Lago, Amanda Maria Teixeira | - |
dc.creator | Borges, Soraia Vilela | - |
dc.creator | Resende, Jaime Vilela de | - |
dc.date.accessioned | 2020-04-17T12:07:00Z | - |
dc.date.available | 2020-04-17T12:07:00Z | - |
dc.date.issued | 2019-04 | - |
dc.identifier.citation | OLIVEIRA, 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.uri | https://www.sciencedirect.com/science/article/abs/pii/S0926669019300147#! | pt_BR |
dc.identifier.uri | http://repositorio.ufla.br/jspui/handle/1/40134 | - |
dc.description.abstract | Ora-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.language | en_US | pt_BR |
dc.publisher | Elsevier | pt_BR |
dc.rights | restrictAccess | pt_BR |
dc.source | Industrial Crops and Products | pt_BR |
dc.subject | Cross-linking agent | pt_BR |
dc.subject | Glycerol | pt_BR |
dc.subject | Rheology | pt_BR |
dc.subject | Edible films | pt_BR |
dc.subject | Arabinogalactan | pt_BR |
dc.subject | Agente de reticulação | pt_BR |
dc.subject | Glicerol | pt_BR |
dc.subject | Reologia | pt_BR |
dc.subject | Filmes comestíveis | pt_BR |
dc.title | Development and characterization of biodegradable films based on Pereskia aculeata Miller mucilage | pt_BR |
dc.type | Artigo | pt_BR |
Aparece nas coleções: | DCA - Artigos publicados em periódicos |
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