Please use this identifier to cite or link to this item:
http://hdl.handle.net/10773/26690
Title: | Effects of encapsulation on the viability of probiotic strains exposed to lethal conditions |
Author: | Borges, Sandra Barbosa, Joana Camilo, Rute Carvalheira, Ana Silva, Joana Sousa, Sérgio Gomes, Ana M. Pintado, Maria M. Silva, José P. Costa, Paulo Amaral, Maria H. Teixeira, Paula Freitas, Ana C. |
Keywords: | Alginate Extrusion Lethal conditions Microencapsulation Probiotic bacteria |
Issue Date: | 2012 |
Publisher: | Institute of Food Science and Technology |
Abstract: | The effect of microencapsulation on the viability of Lactobacillus casei, L. paracasei, L. acidophilus Ki and Bifidobacterium animalis BB-12 during exposure to lethal conditions (25% NaCl, pH 3.0 and 55–60 C) was evaluated. Results demonstrated that survival of probiotic strains to the imposed lethal stress conditions was strain dependent. With the exception of exposure to 25% (w⁄v) NaCl, L. acidophilus Ki (free and encapsulated cells) demonstrated the highest survival rates through exposure to lethal conditions of temperature and pH. For this probiotic strain exposed to heat, microencapsulated cells expressed a higher heat tolerance at 55 C than free cells. For the other tested bacteria, in general, encapsulation had no positive effect on survival through the tested lethal conditions. |
Peer review: | yes |
URI: | http://hdl.handle.net/10773/26690 |
DOI: | 10.1111/j.1365-2621.2011.02855.x |
ISSN: | 0950-5423 |
Appears in Collections: | CESAM - Artigos DQ - Artigos |
Files in This Item:
File | Description | Size | Format | |
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Borges et al. - 2012 - Effects of encapsulation on the viability of probi.pdf | 697.1 kB | Adobe PDF |
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