Utilize este identificador para referenciar este registo: http://hdl.handle.net/10400.14/9960
Título: Evaluation of chitoligosaccharides effect upon probiotic bacteria
Autor: Fernandes, João C.
Eaton, Peter
Franco, M. I.
Ramos, Óscar S.
Sousa, Sérgio
Nascimento, Henrique
Gomes, Ana M. P.
Santos-Silva, Alice
Xavier, Malcata F.
Pintado, M. E.
Palavras-chave: Chitosan
Probiotic bacteria
Atomic force microscopy
Chitooligosaccharides
Data: 2012
Editora: Elsevier
Citação: FERNANDES, João C... [et al.] - Evaluation of chitoligosaccharides effect upon probiotic bacteria. International Journal of Biological Macromolecules. ISSN 0141-8130. Vol. 50, n.º1 (2012), p. 148–152
Resumo: The main objective of the present study was to evaluate the antibacterial effect – through the determination of minimum inhibitory (and lethal) concentrations, as well as the possible prebiotic potential of chitooligosaccharides (COS) – through the determination of growth curves, on Bifidobacterium animalis Bb12, Bifidobacterium animalis Bo and Lactobacillus acidophilus Ki. Atomic force microscopy was further used to obtain high resolution images of COS effects upon the cell morphology. Our results demonstrate that COS do not stimulate the growth of those strains, neither the strains are capable of using COS as a primary source of carbon. Analysis of morphology when exposed to inhibitory/bactericidal concentrations, suggested that COS do not exert any direct damage upon the bacteria structure, instead the bacteria are apparently covered by COS, which likely prevent nutrient uptake.
Peer review: yes
URI: http://hdl.handle.net/10400.14/9960
Versão do Editor: doi:10.1016/j.ijbiomac.2011.10.011
Aparece nas colecções:CBQF - Artigos em revistas internacionais com Arbitragem / Papers in international journals with Peer-review

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