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Abstract:

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.

Registro:

Documento: Artículo
Título:Physical characterization of cassava starch biofilms with special reference to dynamic mechanical properties at low temperatures
Autor:Famá, L.; Flores, S.K.; Gerschenson, L.; Goyanes, S.
Filiación:Departamento de Física, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Ciudad Universitaria, 1428 Buenos Aires, Argentina
Departamento de Industrias, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Ciudad Universitaria, 1428 Buenos Aires, Argentina
Palabras clave:Biofilms; Cassava starch; Physical characterization; Glass transition; Glycerol; pH effects; Plasticizers; Potassium compounds; Starch; Cassava starch; Glycerol glass transition; Physical characterization; Biofilms; Manihot esculenta
Año:2006
Volumen:66
Número:1
Página de inicio:8
Página de fin:15
DOI: http://dx.doi.org/10.1016/j.carbpol.2006.02.016
Título revista:Carbohydrate Polymers
Título revista abreviado:Carbohydr Polym
ISSN:01448617
CODEN:CAPOD
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_01448617_v66_n1_p8_Fama

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Citas:

---------- APA ----------
Famá, L., Flores, S.K., Gerschenson, L. & Goyanes, S. (2006) . Physical characterization of cassava starch biofilms with special reference to dynamic mechanical properties at low temperatures. Carbohydrate Polymers, 66(1), 8-15.
http://dx.doi.org/10.1016/j.carbpol.2006.02.016
---------- CHICAGO ----------
Famá, L., Flores, S.K., Gerschenson, L., Goyanes, S. "Physical characterization of cassava starch biofilms with special reference to dynamic mechanical properties at low temperatures" . Carbohydrate Polymers 66, no. 1 (2006) : 8-15.
http://dx.doi.org/10.1016/j.carbpol.2006.02.016
---------- MLA ----------
Famá, L., Flores, S.K., Gerschenson, L., Goyanes, S. "Physical characterization of cassava starch biofilms with special reference to dynamic mechanical properties at low temperatures" . Carbohydrate Polymers, vol. 66, no. 1, 2006, pp. 8-15.
http://dx.doi.org/10.1016/j.carbpol.2006.02.016
---------- VANCOUVER ----------
Famá, L., Flores, S.K., Gerschenson, L., Goyanes, S. Physical characterization of cassava starch biofilms with special reference to dynamic mechanical properties at low temperatures. Carbohydr Polym. 2006;66(1):8-15.
http://dx.doi.org/10.1016/j.carbpol.2006.02.016