Physical characterization of cassava starch biofilms with special reference to dynamic mechanical properties at low temperatures

Biofilms based on cassava starch and containing glycerol as a plasticizer were characterized with respect to the effect of potassium sorbate concentration and pH on color, crystallinity and mechanical performance al low temperature. It could be observed that a lower pH resulted in lower values of ye...

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Autor principal: Famá, L.
Otros Autores: Flores, S.K, Gerschenson, L., Goyanes, Silvia Nair
Formato: Capítulo de libro
Lenguaje:Inglés
Publicado: 2006
Acceso en línea:Registro en Scopus
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040 |a Scopus  |b spa  |c AR-BaUEN  |d AR-BaUEN 
100 1 |a Famá, L. 
245 1 0 |a Physical characterization of cassava starch biofilms with special reference to dynamic mechanical properties at low temperatures 
260 |c 2006 
270 1 0 |m Goyanes, S.; Departamento de Física, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Ciudad Universitaria, 1428 Buenos Aires, Argentina; email: goyanes@df.uba.ar 
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506 |2 openaire  |e Política editorial 
520 3 |a Biofilms based on cassava starch and containing glycerol as a plasticizer were characterized with respect to the effect of potassium sorbate concentration and pH on color, crystallinity and mechanical performance al low temperature. It could be observed that a lower pH resulted in lower values of yellow index and tan δ and higher crystallinities. Crystallinity decreased with sorbate addition, which also resulted, in general, an increase in yellow index and moisture content and a decrease of storage modulus for temperatures higher than the glycerol glass transition. Increase in sorbate content displaced the glass transition temperature of a glycerol-rich phase toward lower temperatures and increased the difference between the value that E′ took in the glassy region and the value that it took in the rubbery region. It is concluded that the physical properties of edible films can be affected by the antimicrobial agent, sorbate potentially compromising biofilm performance. © 2006 Elsevier Ltd. All rights reserved.  |l eng 
536 |a Detalles de la financiación: Consejo Nacional para Investigaciones Científicas y Tecnológicas 
536 |a Detalles de la financiación: Consejo Nacional de Investigaciones Científicas y Técnicas 
536 |a Detalles de la financiación: Universidad de Buenos Aires 
536 |a Detalles de la financiación: We acknowledge the financial support from Fundación Antorchas, Universidad de Buenos Aires, Consejo Nacional de Investigaciones Científicas y Técnicas de la República Argentina and Agencia Nacional de Investigaciones Científicas y Tecnológicas de la República Argentina. 
593 |a Departamento de Física, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Ciudad Universitaria, 1428 Buenos Aires, Argentina 
593 |a Departamento de Industrias, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Ciudad Universitaria, 1428 Buenos Aires, Argentina 
690 1 0 |a BIOFILMS 
690 1 0 |a CASSAVA STARCH 
690 1 0 |a PHYSICAL CHARACTERIZATION 
690 1 0 |a GLASS TRANSITION 
690 1 0 |a GLYCEROL 
690 1 0 |a PH EFFECTS 
690 1 0 |a PLASTICIZERS 
690 1 0 |a POTASSIUM COMPOUNDS 
690 1 0 |a STARCH 
690 1 0 |a CASSAVA STARCH 
690 1 0 |a GLYCEROL GLASS TRANSITION 
690 1 0 |a PHYSICAL CHARACTERIZATION 
690 1 0 |a BIOFILMS 
690 1 0 |a MANIHOT ESCULENTA 
700 1 |a Flores, S.K. 
700 1 |a Gerschenson, L. 
700 1 |a Goyanes, Silvia Nair 
773 0 |d 2006  |g v. 66  |h pp. 8-15  |k n. 1  |p Carbohydr Polym  |x 01448617  |w (AR-BaUEN)CENRE-603  |t Carbohydrate Polymers 
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856 4 0 |u https://doi.org/10.1016/j.carbpol.2006.02.016  |y DOI 
856 4 0 |u https://hdl.handle.net/20.500.12110/paper_01448617_v66_n1_p8_Fama  |y Handle 
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