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Registro Completo |
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Biblioteca(s): |
Embrapa Agroindústria de Alimentos. |
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Data corrente: |
20/07/2015 |
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Data da última atualização: |
11/02/2016 |
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Tipo da produção científica: |
Resumo em Anais de Congresso |
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Autoria: |
CHÁVEZ, D.; ASCHERI, J. L. R.; MATTOS, M. da C.; CARVALHO, C. W. P. de. |
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Afiliação: |
DAVY CHÁVEZ, UFRRJ; JOSE LUIS RAMIREZ ASCHERI, CTAA; MARIANA DA COSTA MATTOS, CTAA; CARLOS WANDERLEI PILER DE CARVALHO, CTAA. |
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Título: |
Physicochemical properties of a novel extruded product using whole meal sorghum added of roasted coffee powder. |
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Ano de publicação: |
2015 |
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Fonte/Imprenta: |
In: ITALIAN ASSOCIATION FOR CEREAL SCIENCE AND TECHNOLOGY AISTEC CONFERENCE, 10., 2015, Milan. Grains for feeding the world : book of abastracts. Milan: University of Milan, 2015. Session 8 - Processing and analyses. |
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Páginas: |
1 p. |
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ISBN: |
978-88-906680-2-9 |
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Idioma: |
Inglês |
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Palavras-Chave: |
Antiooxidant property; Extrusion cooking; Rich fiber food ingredient; Whole cereal. |
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Categoria do assunto: |
X Pesquisa, Tecnologia e Engenharia |
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Marc: |
LEADER 00844nam a2200205 a 4500
001 2020063
005 2016-02-11
008 2015 bl uuuu u00u1 u #d
020 $a978-88-906680-2-9
100 1 $aCHÁVEZ, D.
245 $aPhysicochemical properties of a novel extruded product using whole meal sorghum added of roasted coffee powder.$h[electronic resource]
260 $aIn: ITALIAN ASSOCIATION FOR CEREAL SCIENCE AND TECHNOLOGY AISTEC CONFERENCE, 10., 2015, Milan. Grains for feeding the world : book of abastracts. Milan: University of Milan, 2015. Session 8 - Processing and analyses.$c2015
300 $a1 p.
653 $aAntiooxidant property
653 $aExtrusion cooking
653 $aRich fiber food ingredient
653 $aWhole cereal
700 1 $aASCHERI, J. L. R.
700 1 $aMATTOS, M. da C.
700 1 $aCARVALHO, C. W. P. de
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Embrapa Agroindústria de Alimentos (CTAA) |
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Registro Completo
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Biblioteca(s): |
Embrapa Instrumentação. |
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Data corrente: |
25/04/2003 |
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Data da última atualização: |
25/04/2003 |
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Autoria: |
PATERNO, L. G.; CONSTANTINO, C. J. L.; OLIVEIRA JR. O. N.; MATTOSO, L. H. C. |
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Afiliação: |
UFSCar-Departamento de Engenharia de Materiais, São Carlos, SP; USP-Instituto de Física de São Carlos, São Carlos, SP; Embrapa Instrumentação Agropecuária, São Carlos, SP. |
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Título: |
Self-assembled films of poly(o-ethoxyaniline) complexed with sulfonated lignin. |
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Ano de publicação: |
2002 |
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Fonte/Imprenta: |
Colloids and Subsurfaces B: Biointerfaces, Amsterdam, v. 23, p. 257-262, 2002. |
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Idioma: |
Inglês |
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Conteúdo: |
The interaction of poly)o-ethoxyaniline) (POEA) doped with HC1 and sulfonated lignin (SL) was investigated using UV-Vis spectroscopy in order to probe the influence of pH and quantity of SL on the formation of a polyelectrolyte complex. The introduction of SL into the HC1 doped POEA solution screens the positive charges of the protonated POEA allowing further protons to be pumped into the conducting polymers thus increasing its doping level. In addition, the strong interaction between these two electrolytes caused POEA to remain doped within a wid pH range. Layers were built from aqueous solutions of the complex formed by POEA and SL which were alternated with either pure POEA or sulfonated polystyrene in the form of layer-by-layer films. The resultin multilayer films remained doped even at pH 9.0, due to the strong complex formation, which prevents POEA from deprotonating. Surface potential measurements showed that the potential for the POEA + SL complex is more positive than for films with each layer investigated separately, thus confirming the strong interaction between POEA and SL. |
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Palavras-Chave: |
Complexes; Conducting polymers; Espectroscopia; Polianilina; Polímero; Polyanilines; Polyelectrolytes; Self-assembly. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 01830naa a2200253 a 4500
001 1024615
005 2003-04-25
008 2002 bl --- 0-- u #d
100 1 $aPATERNO, L. G.
245 $aSelf-assembled films of poly(o-ethoxyaniline) complexed with sulfonated lignin.
260 $c2002
520 $aThe interaction of poly)o-ethoxyaniline) (POEA) doped with HC1 and sulfonated lignin (SL) was investigated using UV-Vis spectroscopy in order to probe the influence of pH and quantity of SL on the formation of a polyelectrolyte complex. The introduction of SL into the HC1 doped POEA solution screens the positive charges of the protonated POEA allowing further protons to be pumped into the conducting polymers thus increasing its doping level. In addition, the strong interaction between these two electrolytes caused POEA to remain doped within a wid pH range. Layers were built from aqueous solutions of the complex formed by POEA and SL which were alternated with either pure POEA or sulfonated polystyrene in the form of layer-by-layer films. The resultin multilayer films remained doped even at pH 9.0, due to the strong complex formation, which prevents POEA from deprotonating. Surface potential measurements showed that the potential for the POEA + SL complex is more positive than for films with each layer investigated separately, thus confirming the strong interaction between POEA and SL.
653 $aComplexes
653 $aConducting polymers
653 $aEspectroscopia
653 $aPolianilina
653 $aPolímero
653 $aPolyanilines
653 $aPolyelectrolytes
653 $aSelf-assembly
700 1 $aCONSTANTINO, C. J. L.
700 1 $aOLIVEIRA JR. O. N.
700 1 $aMATTOSO, L. H. C.
773 $tColloids and Subsurfaces B: Biointerfaces, Amsterdam$gv. 23, p. 257-262, 2002.
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