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Artículo

Micro and nanoparticles of native and modified cassava starches as carriers of the antimicrobial potassium sorbat

Alzate Calderón, Paola CarolinaIcon ; Zalduendo, María MercedesIcon ; Gerschenson, Lia NoemiIcon ; Flores, Silvia KarinaIcon
Fecha de publicación: 10/2016
Editorial: Wiley VCH Verlag
Revista: Starch/starke
ISSN: 0038-9056
Idioma: Inglés
Tipo de recurso: Artículo publicado
Clasificación temática:
Recubrimientos y Películas; Alimentos y Bebidas; Nano-materiales

Resumen

Cross-linked and/or acetylated cassava starches were synthesized and characterized. The acetylation increased the water retention capacity and the solubility in water while the higher level of cross-linking produced the opposite effect on starch. Native (NCS) and acetylated cassava starches (ACS) were used to generate starch micro- and nanoparticles by the dialysis technique.The nanoparticle fraction was around 1.8 g 100 g1 and 12 g 100 g1 (starch dry basis) for NCS and ACS, respectively. The nanoparticle sizes were around 23?255nm with zeta potential extending from 4 to 44mV, while the microscopic fractions ranged 5?87mm. In addition, the capacity of particles to support potassium sorbate (KS) was tested. NCS and ACS particles supported a similar quantity of KS (1400 ppm) and the presence of antimicrobial decreased the particle size for NCS. The precipitation in ethanol technique was also used to generate microparticles where the particles generated from acetylated starches were smaller (8?58mm) than those from native ones (30?227 mm). The KS content that these particles could incorporate was around 2020 ppm. The applied technique modulated the average dimension of the particles obtained, as well as the antimicrobial retention capacity. These innovative materials could bepotentially helpful for shelf life extension by the contribution to the KS stabilization to be incorporated in the bulk of food products.
Palabras clave: Micro- And Nanoparticles , Native And Modified Cassava Starch , Potassium Sorbate , Starch Carriers , Antimicrobial
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info:eu-repo/semantics/openAccess Excepto donde se diga explícitamente, este item se publica bajo la siguiente descripción: Atribución-NoComercial-SinDerivadas 2.5 Argentina (CC BY-NC-ND 2.5 AR)
Identificadores
URI: http://hdl.handle.net/11336/46752
URL: https://onlinelibrary.wiley.com/doi/abs/10.1002/star.201600098
DOI: http://dx.doi.org/10.1002/star.201600098
Colecciones
Articulos(OCA CIUDAD UNIVERSITARIA)
Articulos de OFICINA DE COORDINACION ADMINISTRATIVA CIUDAD UNIVERSITARIA
Articulos(SEDE CENTRAL)
Articulos de SEDE CENTRAL
Citación
Alzate Calderón, Paola Carolina; Zalduendo, María Mercedes; Gerschenson, Lia Noemi; Flores, Silvia Karina; Micro and nanoparticles of native and modified cassava starches as carriers of the antimicrobial potassium sorbat; Wiley VCH Verlag; Starch/starke; 68; 11-12; 10-2016; 1038-1047
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