Please use this identifier to cite or link to this item:
http://hdl.handle.net/10773/25444
Title: | Influence of l-cysteine, oxygen and relative humidity upon survival throughout storage of probiotic bacteria in whey protein-based microcapsules |
Author: | Rodrigues, D. Sousa, S. Rocha-Santos, T. Silva, J. P. Sousa Lobo, J. M. Costa, P. Amaral, M. H. Pintado, M. M. Gomes, A. M. Malcata, F. X. Freitas, A. C. |
Issue Date: | 2011 |
Publisher: | Elsevier |
Abstract: | The survival rates of Lactobacilus acidophilus Ki, Lactobacillus paracasei L26 and Bifidobacterium animalis BB-12 were studied after whey protein microencapsulation via spray-drying, with or without l-cysteine-HCl, and storage up to 6 months at 5 °C and 22 °C, with variation in relative air humidity and oxygen levels. Lb. paracasei L26 was the least susceptible to storage conditions: above 106 cfu g−1 were recorded by 180 d at 22 °C, irrespective of relative humidity, and the presence/absence of oxygen and l-cysteine. Higher relative humidity, higher temperature and longer storage periods were deleterious to survival of both B. animalis BB-12 and Lb. acidophilus Ki; the effect of l-cysteine-HCl was dependent on the probiotic strain. The effect of overhead oxygen was not significant upon any probiotic strain studied. Whey protein microcapsules containing l-cysteine-HCl protected probiotic cultures from simulated gastrointestinal conditions. |
Peer review: | yes |
URI: | http://hdl.handle.net/10773/25444 |
DOI: | 10.1016/j.idairyj.2011.05.005 |
ISSN: | 0958-6946 |
Appears in Collections: | CESAM - Artigos DQ - Artigos |
Files in This Item:
File | Description | Size | Format | |
---|---|---|---|---|
Rodrigues et al. - 2011 - Influence of L-cysteine, oxygen and relative humid.pdf | 633.76 kB | Adobe PDF |
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.