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Artículo

Food prospects of selenium enriched-Lactobacillus acidophilus CRL 636 and Lactobacillus reuteri CRL 1101

Pescuma, MicaelaIcon ; Gomez Gomez, Beatríz; Perez Corona, Teresa; Font, Graciela MariaIcon ; Madrid Albarrn, Yolanda; Mozzi, Fernanda BeatrizIcon
Fecha de publicación: 08/2017
Editorial: Elsevier Ltd
Revista: Journal of Functional Foods
ISSN: 1756-4646
Idioma: Inglés
Tipo de recurso: Artículo publicado
Clasificación temática:
Otras Ciencias Biológicas

Resumen

Selenium, which is present as SeCys in selenoproteins, is involved in cancer prevention, thyroid functioning, and pathogen inhibition. Lactobacilli can biotransform inorganic Se into seleno-amino acids. Growth, Se accumulation and seleno-amino acid formation by Lactobacillus acidophilus CRL636 and L. reuteri CRL1101 in a Se-supplemented medium were studied. Moreover, survival of Se-enriched strains to different pH values and bile salts was analyzed. L. acidophilus CRL636 showed low growth rate in the presence of Se while differences were less evident for L. reuteri CRL1101, which displayed higher amounts of intracellular SeCys and SeMet than the CRL636 strain. Interestingly, both lactobacilli could produce Se-nanoparticles. Se-enriched lactobacilli showed lower growth rates than non-Se exposed cells. The adverse effect of bile salts and the ability to survive at pH 4.0 diminished for the Se-enriched L. reuteri strain. The studied lactobacilli could be used as Se-enriched probiotics or as a vehicle for manufacturing Se-containing fermented foods.
Palabras clave: Lactic Acid Bacteria , Lactobacillus , Nanoparticles , Selenium , Selenium Resistance , Selenocysteine
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info:eu-repo/semantics/openAccess Excepto donde se diga explícitamente, este item se publica bajo la siguiente descripción: Atribución-NoComercial-SinDerivadas 2.5 Argentina (CC BY-NC-ND 2.5 AR)
Identificadores
URI: http://hdl.handle.net/11336/40073
DOI: http://dx.doi.org/10.1016/j.jff.2017.06.009
URL: https://www.sciencedirect.com/science/article/pii/S1756464617303250
Colecciones
Articulos(CERELA)
Articulos de CENTRO DE REFERENCIA PARA LACTOBACILOS (I)
Citación
Pescuma, Micaela; Gomez Gomez, Beatríz; Perez Corona, Teresa; Font, Graciela Maria; Madrid Albarrn, Yolanda; et al.; Food prospects of selenium enriched-Lactobacillus acidophilus CRL 636 and Lactobacillus reuteri CRL 1101; Elsevier Ltd; Journal of Functional Foods; 35; 8-2017; 466-473
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