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 | Acesso ao texto completo restrito à biblioteca da Embrapa Instrumentação. Para informações adicionais entre em contato com cnpdia.biblioteca@embrapa.br. |
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Registro Completo |
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Biblioteca(s): |
Embrapa Instrumentação. |
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Data corrente: |
30/11/2020 |
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Data da última atualização: |
16/08/2022 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
FERREIRA, L. F.; OLIVEIRA, A. C. S.; BEGALI, D. O.; SENA NETO, A. R.; MARTINS, M. A.; OLIVEIRA, J. E.; BORGES, S. V.; YOSHIDA, M. I.; TONOLI, G. H. D.; DIAS, M. V. |
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Afiliação: |
MARIA ALICE MARTINS, CNPDIA. |
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Título: |
Characterization of cassava starch/soy protein isolate blends obtained by extrusion and thermocompression. |
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Ano de publicação: |
2021 |
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Fonte/Imprenta: |
Industrial Crops & Products, v. 160, 113092, 2021. |
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Páginas: |
1 - 11 |
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ISSN: |
0926-6690 |
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DOI: |
https://doi.org/10.1016/j.indcrop.2020.113092 |
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Idioma: |
Inglês |
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Conteúdo: |
To develop biodegradable food packaging, different biopolymer blend ratios of cassava starch (S) and soy protein isolate (P) (S100, S85P15, S70P30, S55P45, S40P60, and P100) were prepared by the extrusion method and then characterized. Before their application in foods, these blends must be characterized to enable the selection of the optimum materials for different packaging applications. For this purpose, the thermal and structural properties of the blends and possible interactions between the polymers were analyzed by thermogravimetric analysis (TG), dynamic mechanical analysis (DMA), X-ray diffraction (XRD), and Fourier-transform infrared (FTIR) spectros- copy. The moisture and oil resistance (surface energy, water vapor permeability (WVP), moisture content and solubility, and oil permeability), mechanical properties (tensile and puncture strength), and transparency of the blends were also investigated. The addition of protein resulted in crosslinking between the starch and protein chains and increased the crystallinity, as observed by FTIR, XRD, and DMA. Consequently, the stiffness of S40P60 increased, presenting a 120 % higher elastic modulus, and the WVP decreased 25 % compared to S100, likely due to the crosslinking of the polymer chains promoted by the addition of protein. In contrast, the S70P30 blend had greater hydrophilicity, leading to 68 % increase in moisture content and WVP, respectively. The S40P60 blend presented 22 % higher water solubility than the other blends. The S85P15 blend exhibited higher dispersive energy ability, and consequently, higher permeability to oil. P100 was 19 % less transparent than the other samples. Concerning the studied blends, S40P60 presented a low water vapor and oil permeability and low dispersive energy, while also presenting low transparency. Therefore, the use of this blend should be considered for packaging for foods with high lipid contents MenosTo develop biodegradable food packaging, different biopolymer blend ratios of cassava starch (S) and soy protein isolate (P) (S100, S85P15, S70P30, S55P45, S40P60, and P100) were prepared by the extrusion method and then characterized. Before their application in foods, these blends must be characterized to enable the selection of the optimum materials for different packaging applications. For this purpose, the thermal and structural properties of the blends and possible interactions between the polymers were analyzed by thermogravimetric analysis (TG), dynamic mechanical analysis (DMA), X-ray diffraction (XRD), and Fourier-transform infrared (FTIR) spectros- copy. The moisture and oil resistance (surface energy, water vapor permeability (WVP), moisture content and solubility, and oil permeability), mechanical properties (tensile and puncture strength), and transparency of the blends were also investigated. The addition of protein resulted in crosslinking between the starch and protein chains and increased the crystallinity, as observed by FTIR, XRD, and DMA. Consequently, the stiffness of S40P60 increased, presenting a 120 % higher elastic modulus, and the WVP decreased 25 % compared to S100, likely due to the crosslinking of the polymer chains promoted by the addition of protein. In contrast, the S70P30 blend had greater hydrophilicity, leading to 68 % increase in moisture content and WVP, respectively. The S40P60 blend presented 22 % higher water solubility than the other... Mostrar Tudo |
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Palavras-Chave: |
Surface energy; Thermocompression; Water vapor permeability. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 02836naa a2200301 a 4500
001 2127232
005 2022-08-16
008 2021 bl uuuu u00u1 u #d
022 $a0926-6690
024 7 $ahttps://doi.org/10.1016/j.indcrop.2020.113092$2DOI
100 1 $aFERREIRA, L. F.
245 $aCharacterization of cassava starch/soy protein isolate blends obtained by extrusion and thermocompression.$h[electronic resource]
260 $c2021
300 $a1 - 11
520 $aTo develop biodegradable food packaging, different biopolymer blend ratios of cassava starch (S) and soy protein isolate (P) (S100, S85P15, S70P30, S55P45, S40P60, and P100) were prepared by the extrusion method and then characterized. Before their application in foods, these blends must be characterized to enable the selection of the optimum materials for different packaging applications. For this purpose, the thermal and structural properties of the blends and possible interactions between the polymers were analyzed by thermogravimetric analysis (TG), dynamic mechanical analysis (DMA), X-ray diffraction (XRD), and Fourier-transform infrared (FTIR) spectros- copy. The moisture and oil resistance (surface energy, water vapor permeability (WVP), moisture content and solubility, and oil permeability), mechanical properties (tensile and puncture strength), and transparency of the blends were also investigated. The addition of protein resulted in crosslinking between the starch and protein chains and increased the crystallinity, as observed by FTIR, XRD, and DMA. Consequently, the stiffness of S40P60 increased, presenting a 120 % higher elastic modulus, and the WVP decreased 25 % compared to S100, likely due to the crosslinking of the polymer chains promoted by the addition of protein. In contrast, the S70P30 blend had greater hydrophilicity, leading to 68 % increase in moisture content and WVP, respectively. The S40P60 blend presented 22 % higher water solubility than the other blends. The S85P15 blend exhibited higher dispersive energy ability, and consequently, higher permeability to oil. P100 was 19 % less transparent than the other samples. Concerning the studied blends, S40P60 presented a low water vapor and oil permeability and low dispersive energy, while also presenting low transparency. Therefore, the use of this blend should be considered for packaging for foods with high lipid contents
653 $aSurface energy
653 $aThermocompression
653 $aWater vapor permeability
700 1 $aOLIVEIRA, A. C. S.
700 1 $aBEGALI, D. O.
700 1 $aSENA NETO, A. R.
700 1 $aMARTINS, M. A.
700 1 $aOLIVEIRA, J. E.
700 1 $aBORGES, S. V.
700 1 $aYOSHIDA, M. I.
700 1 $aTONOLI, G. H. D.
700 1 $aDIAS, M. V.
773 $tIndustrial Crops & Products$gv. 160, 113092, 2021.
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Registro original: |
Embrapa Instrumentação (CNPDIA) |
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Registro Completo
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Biblioteca(s): |
Embrapa Pantanal. |
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Data corrente: |
05/01/2004 |
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Data da última atualização: |
05/01/2004 |
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Autoria: |
BARROS, L. F.; OLIVEIRA, M. D.; SILVA, L. C. R.; EILERS, V.; TAKEDA, A. M. |
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Afiliação: |
Embrapa Pantanal (Corumba, MS). UEM/NUPELIA (Maringa, PR). |
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Título: |
Ocorrencia do Mexilhao Dourado (Limnoperna fortunei) no rio Miranda, Pantanal-MS, Brasil. |
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Ano de publicação: |
2003 |
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Fonte/Imprenta: |
In: CONGRESSO BRASILEIRO DE LIMNOLOGIA, 9., 2003, Juiz de Fora. Anais. Juiz de Fora: ICB / UFJF, 2003. nao paginado. CD-ROM. |
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Idioma: |
Português |
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Conteúdo: |
A introducao de especies exoticas tem chamado a atencao da comunidade cientifica como um importante elemento de mudanca global e grande ameaca ao ambiente receptor. O mexilhao dourado, Limnoperna fortunei (Dunker, 1857), e uma especie de agua doce pertencente a familia Mytilidae, nativa dos rios da China. E uma especie dioica, de fecundacao externa, passando por varios estagios larvais ate sua fixacao em algum substrato duro. Ea terceira especie aquatica introduzida na America do Sul, atraves do rio da Prata (Pastorino et al., 1993) onde foi registrada em 1991. Em abril de 1997, foi coletado no rio Paraguai no Porto de Assuncao, Paraguai (darrigran, 2000). Em 1998 foi registrado no rio Paraguai, na regiao do Pantanal Sul-Matogrossense (Oliveira et al., 2000), ocorrendo em ambientes loticos, lenticos e semi-loticos. |
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Palavras-Chave: |
Bivalve; Especie exotica; Exotic species; Gold mussel; Mexilhado dourado; Rio Paraguai. |
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Thesaurus NAL: |
Brazil; Pantanal; Paraguay River. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 01641naa a2200277 a 4500
001 1803667
005 2004-01-05
008 2003 bl --- 0-- u #d
100 1 $aBARROS, L. F.
245 $aOcorrencia do Mexilhao Dourado (Limnoperna fortunei) no rio Miranda, Pantanal-MS, Brasil.
260 $c2003
520 $aA introducao de especies exoticas tem chamado a atencao da comunidade cientifica como um importante elemento de mudanca global e grande ameaca ao ambiente receptor. O mexilhao dourado, Limnoperna fortunei (Dunker, 1857), e uma especie de agua doce pertencente a familia Mytilidae, nativa dos rios da China. E uma especie dioica, de fecundacao externa, passando por varios estagios larvais ate sua fixacao em algum substrato duro. Ea terceira especie aquatica introduzida na America do Sul, atraves do rio da Prata (Pastorino et al., 1993) onde foi registrada em 1991. Em abril de 1997, foi coletado no rio Paraguai no Porto de Assuncao, Paraguai (darrigran, 2000). Em 1998 foi registrado no rio Paraguai, na regiao do Pantanal Sul-Matogrossense (Oliveira et al., 2000), ocorrendo em ambientes loticos, lenticos e semi-loticos.
650 $aBrazil
650 $aPantanal
650 $aParaguay River
653 $aBivalve
653 $aEspecie exotica
653 $aExotic species
653 $aGold mussel
653 $aMexilhado dourado
653 $aRio Paraguai
700 1 $aOLIVEIRA, M. D.
700 1 $aSILVA, L. C. R.
700 1 $aEILERS, V.
700 1 $aTAKEDA, A. M.
773 $tIn: CONGRESSO BRASILEIRO DE LIMNOLOGIA, 9., 2003, Juiz de Fora. Anais. Juiz de Fora: ICB / UFJF, 2003. nao paginado. CD-ROM.
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