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Influence of Chitosan Coating on Mechanical Stability of Biopolymer Carriers with Probiotic Starter Culture in Fermented Whey Beverages

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2015
732858.pdf (2.499Mb)
Authors
Obradović, Nataša
Krunić, Tanja
Trifković, Kata T.
Bulatović, Maja
Rakin, Marko
Rakin, Marica
Bugarski, Branko
Article (Published version)
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Abstract
The aim of this study was to improve the mechanical stability of biopolymer carriers and cell viability with addition of chitosan coating during fermentation process and product storage. Dairy starter culture (1% (w/v)) was diluted in whey and mixed with sodium alginate solution and the beads were made using extrusion technique. The mechanical stability of coated and uncoated beads, the release behavior, and the viability of encapsulated probiotic dairy starter culture in fermented whey beverages were analyzed. The mechanical properties of the beads were determined according to force-displacement and engineering stress-strain curves obtained after compression testing. It was observed that addition of chitosan as a coating on the beads as well as the fermentation process increased the elastic modulus of the calcium alginate-whey beads and cell survival. The current study revealed that the coating did not significantly improve the viability of probiotics during the fermentation but had a...n important influence on preservation of the strength of the carrier during storage. Our results indicate that whey-based substrate has positive effect on the mechanical stability of biopolymer beads with encapsulated probiotics.

Source:
International Journal of Polymer Science, 2015, 2015
Publisher:
  • Hindawi Ltd, London
Funding / projects:
  • Novel encapsulation and enzyme technologies for designing of new biocatalysts and biologically active compounds targeting enhancement of food quality, safety and competitiveness (RS-46010)
  • Micromechanical criteria of damage and fracture (RS-174004)

DOI: 10.1155/2015/732858

ISSN: 1687-9422

WoS: 000364084800001

Scopus: 2-s2.0-84947967337
[ Google Scholar ]
21
11
URI
http://TechnoRep.tmf.bg.ac.rs/handle/123456789/3067
Collections
  • Radovi istraživača / Researchers’ publications (TMF)
  • Radovi istraživača (Inovacioni centar) / Researchers’ publications (Innovation Centre)
Institution/Community
Tehnološko-metalurški fakultet
TY  - JOUR
AU  - Obradović, Nataša
AU  - Krunić, Tanja
AU  - Trifković, Kata T.
AU  - Bulatović, Maja
AU  - Rakin, Marko
AU  - Rakin, Marica
AU  - Bugarski, Branko
PY  - 2015
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/3067
AB  - The aim of this study was to improve the mechanical stability of biopolymer carriers and cell viability with addition of chitosan coating during fermentation process and product storage. Dairy starter culture (1% (w/v)) was diluted in whey and mixed with sodium alginate solution and the beads were made using extrusion technique. The mechanical stability of coated and uncoated beads, the release behavior, and the viability of encapsulated probiotic dairy starter culture in fermented whey beverages were analyzed. The mechanical properties of the beads were determined according to force-displacement and engineering stress-strain curves obtained after compression testing. It was observed that addition of chitosan as a coating on the beads as well as the fermentation process increased the elastic modulus of the calcium alginate-whey beads and cell survival. The current study revealed that the coating did not significantly improve the viability of probiotics during the fermentation but had an important influence on preservation of the strength of the carrier during storage. Our results indicate that whey-based substrate has positive effect on the mechanical stability of biopolymer beads with encapsulated probiotics.
PB  - Hindawi Ltd, London
T2  - International Journal of Polymer Science
T1  - Influence of Chitosan Coating on Mechanical Stability of Biopolymer Carriers with Probiotic Starter Culture in Fermented Whey Beverages
VL  - 2015
DO  - 10.1155/2015/732858
ER  - 
@article{
author = "Obradović, Nataša and Krunić, Tanja and Trifković, Kata T. and Bulatović, Maja and Rakin, Marko and Rakin, Marica and Bugarski, Branko",
year = "2015",
abstract = "The aim of this study was to improve the mechanical stability of biopolymer carriers and cell viability with addition of chitosan coating during fermentation process and product storage. Dairy starter culture (1% (w/v)) was diluted in whey and mixed with sodium alginate solution and the beads were made using extrusion technique. The mechanical stability of coated and uncoated beads, the release behavior, and the viability of encapsulated probiotic dairy starter culture in fermented whey beverages were analyzed. The mechanical properties of the beads were determined according to force-displacement and engineering stress-strain curves obtained after compression testing. It was observed that addition of chitosan as a coating on the beads as well as the fermentation process increased the elastic modulus of the calcium alginate-whey beads and cell survival. The current study revealed that the coating did not significantly improve the viability of probiotics during the fermentation but had an important influence on preservation of the strength of the carrier during storage. Our results indicate that whey-based substrate has positive effect on the mechanical stability of biopolymer beads with encapsulated probiotics.",
publisher = "Hindawi Ltd, London",
journal = "International Journal of Polymer Science",
title = "Influence of Chitosan Coating on Mechanical Stability of Biopolymer Carriers with Probiotic Starter Culture in Fermented Whey Beverages",
volume = "2015",
doi = "10.1155/2015/732858"
}
Obradović, N., Krunić, T., Trifković, K. T., Bulatović, M., Rakin, M., Rakin, M.,& Bugarski, B.. (2015). Influence of Chitosan Coating on Mechanical Stability of Biopolymer Carriers with Probiotic Starter Culture in Fermented Whey Beverages. in International Journal of Polymer Science
Hindawi Ltd, London., 2015.
https://doi.org/10.1155/2015/732858
Obradović N, Krunić T, Trifković KT, Bulatović M, Rakin M, Rakin M, Bugarski B. Influence of Chitosan Coating on Mechanical Stability of Biopolymer Carriers with Probiotic Starter Culture in Fermented Whey Beverages. in International Journal of Polymer Science. 2015;2015.
doi:10.1155/2015/732858 .
Obradović, Nataša, Krunić, Tanja, Trifković, Kata T., Bulatović, Maja, Rakin, Marko, Rakin, Marica, Bugarski, Branko, "Influence of Chitosan Coating on Mechanical Stability of Biopolymer Carriers with Probiotic Starter Culture in Fermented Whey Beverages" in International Journal of Polymer Science, 2015 (2015),
https://doi.org/10.1155/2015/732858 . .

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