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 | Acesso ao texto completo restrito à biblioteca da Embrapa Florestas. Para informações adicionais entre em contato com cnpf.biblioteca@embrapa.br. |
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Biblioteca(s): |
Embrapa Florestas. |
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Data corrente: |
09/11/2018 |
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Data da última atualização: |
09/11/2018 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
HORNUNG, P. S.; ÁVILA, S.; MASISI, K.; MALUNGA, L. N.; LAZZAROTTO, M.; SCHNITZLER, E.; RIBANI, R. H.; BETA, T. |
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Afiliação: |
Polyanna S. Hornung, UFPR; Suelen Ávila, UFPR; Kabo Masisi, University of Manitoba; Lovemore N. Malunga, University of Manitoba; MARCELO LAZZAROTTO, CNPF; Egon Schnitzler, UEPG; Rosemary H. Ribani, UFPR; Trust Beta, University of Manitoba. |
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Título: |
Green development of biodegradable films based on native yam (Dioscoreaceae) starch mixtures. |
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Ano de publicação: |
2018 |
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Fonte/Imprenta: |
Starch, v. 70, n. 5/6, 1700234, May 2018. 12 p. |
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DOI: |
10.1002/star.201700234 |
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Idioma: |
Inglês |
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Conteúdo: |
Mixtures of starch comprising starches from different botanical origins and species can improve the mechanical properties of films and coatings. Here, the aim is to develop a sustainable process of starch modification to obtain enhanced starch films through mixing three Dioscoreaceae starches and to study the films resultant mechanical (tensile strength and elongation at break), thermal (glass transition and melting temperature), and physicochemical (moisture, solubility, thickness, color, transparency, light transmission, water vapor permeability, crystallinity, and surface uniformity) properties. The films obtained after the mixing process show low moisture content and high transparency, high solubility desirable for biodegradability, and significantly different thickness. An improved light barrier is achieved and water vapor permeability barrier properties are obtained. Using differential scanning calorimetry, it is observed that the glass transition temperature of the films decreased. The starch mixture improves the mechanical characteristics of the films by 200% for tensile strength and 232% for elongation at break. After mixing, the films show increased crystallinity and no crack or pinholes in their surface. These findings demonstrate that the yamstarch mixtures form strong and flexible films suitable for various industrial products through a simple green process. |
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Palavras-Chave: |
Biopolímero; Dioscorea starch; Processo sustentável; Sustainable processes. |
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Thesagro: |
Amido; Inhame. |
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Thesaurus Nal: |
Biodegradability; Biopolymers; Dioscoreaceae; Edible films; Starch; Yams. |
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Categoria do assunto: |
X Pesquisa, Tecnologia e Engenharia |
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Marc: |
LEADER 02374naa a2200361 a 4500
001 2099093
005 2018-11-09
008 2018 bl uuuu u00u1 u #d
024 7 $a10.1002/star.201700234$2DOI
100 1 $aHORNUNG, P. S.
245 $aGreen development of biodegradable films based on native yam (Dioscoreaceae) starch mixtures.$h[electronic resource]
260 $c2018
520 $aMixtures of starch comprising starches from different botanical origins and species can improve the mechanical properties of films and coatings. Here, the aim is to develop a sustainable process of starch modification to obtain enhanced starch films through mixing three Dioscoreaceae starches and to study the films resultant mechanical (tensile strength and elongation at break), thermal (glass transition and melting temperature), and physicochemical (moisture, solubility, thickness, color, transparency, light transmission, water vapor permeability, crystallinity, and surface uniformity) properties. The films obtained after the mixing process show low moisture content and high transparency, high solubility desirable for biodegradability, and significantly different thickness. An improved light barrier is achieved and water vapor permeability barrier properties are obtained. Using differential scanning calorimetry, it is observed that the glass transition temperature of the films decreased. The starch mixture improves the mechanical characteristics of the films by 200% for tensile strength and 232% for elongation at break. After mixing, the films show increased crystallinity and no crack or pinholes in their surface. These findings demonstrate that the yamstarch mixtures form strong and flexible films suitable for various industrial products through a simple green process.
650 $aBiodegradability
650 $aBiopolymers
650 $aDioscoreaceae
650 $aEdible films
650 $aStarch
650 $aYams
650 $aAmido
650 $aInhame
653 $aBiopolímero
653 $aDioscorea starch
653 $aProcesso sustentável
653 $aSustainable processes
700 1 $aÁVILA, S.
700 1 $aMASISI, K.
700 1 $aMALUNGA, L. N.
700 1 $aLAZZAROTTO, M.
700 1 $aSCHNITZLER, E.
700 1 $aRIBANI, R. H.
700 1 $aBETA, T.
773 $tStarch$gv. 70, n. 5/6, 1700234, May 2018. 12 p.
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| 1. |  | PRADO, R. B.; PENEDO-JULIEN, S.; SCHULER, A. E.; KÜNNE, A.; RODRÍGUEZ OSUNA, V. E.; PAIVA, M. H. R. de; RIBBE, L. Avaliação preliminar da qualidade da água em função do manejo agropecuário e cobertura vegetal na microbacia Batatal - Cachoeiras de Macacu, RJ. In: SEMINÁRIO DA REDE AGROHIDRO, 2., 2014, Campinas. Impactos da agricultura e das mudanças climáticas nos recursos hídricos: anais. Brasília, DF: Embrapa, 2014. p. 152-159.| Tipo: Artigo em Anais de Congresso |
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