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Exploring the prebiotic effect of cyclodextrins on probiotic bacteria entrapped in carboxymetyl cellulose-chitosan particles
University of Coimbra, Department of Chemistry, Coimbra, Portugal.
University of Algarve, Campus de Gambelas, Faro, Portugal.
University of Coimbra, Department of Chemistry, Coimbra, Portugal.
University of Coimbra, Department of Chemistry, Coimbra, Portugal.
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2017 (English)In: Colloids and Surfaces B: Biointerfaces, ISSN 0927-7765, E-ISSN 1873-4367Article in journal (Refereed) Epub ahead of print
Abstract [en]

In this work the prebiotic effect of different cyclodextrins, CDs, on the viability of model probiotic bacteria (Lactobacillus rhamnosus GG) encapsulated in carboxymethyl cellulose-chitosan (CMC-Cht) hybrid particles was studied. All the CDs tested were observed to considerably improve the viability (quantitatively like common prebiotics, such as corn starch) and encapsulation efficiency when compared to the CD-free particles, as inferred by plate counting method and fluorescence microscopy. The SEM data suggests that the morphology of the particles, the roughness of the surface and porosity, are dependent on the type of CD and may reflect different interactions between the CDs and the matrix components. The aging and stability of the samples with and without β-CD were further evaluated. Remarkably, the viability count of the CD-doped samples was still reasonably high after one month storage at room temperature with acceptable values for practical uses. Moreover, when the CMC-Cht particles were exposed to in vitro simulated digestion fluids, the cell survival was much enhanced when the particles contained β-CD. 

Place, publisher, year, edition, pages
2017.
Keywords [en]
Carboxylmethyl cellulose, Chitosan, Cyclodextrin, Prebiotic, Probiotic
National Category
Chemical Engineering
Identifiers
URN: urn:nbn:se:miun:diva-32764DOI: 10.1016/j.colsurfb.2017.12.014OAI: oai:DiVA.org:miun-32764DiVA, id: diva2:1178583
Note

Available online 11 December 2017

Available from: 2018-01-30 Created: 2018-01-30 Last updated: 2018-01-30Bibliographically approved

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Lindman, Björn

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