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Title

Heteropolysaccharide-producing bifidobacteria for the development of functional dairy products

AuthorsLlamas, M. G.; Peirotén, Ángela; Puertas, A. I.; Prieto, Alicia ; López, Paloma ; Pardo, Miguel Ángel; Rodríguez, Eva; Dueñas, María Teresa
KeywordsBifidobacteria
Exopolysaccharide
Immunomodulation
Zebrafish
Technological properties
Adhesion
Issue DateMar-2019
PublisherElsevier
CitationLWT-Food Science and Technology 102:295-303 (2019)
AbstractBifidobacterium longum INIA P132 and Bifidobacterium infantis INIA P731, isolated from infant-faeces, were investigated in this work. Regarding the probiotic and technological potential of the bifidobacteria, both were resistant to gastrointestinal tract simulated conditions. B. longum showed high survival upon freezing and thawing as well as lyophilisation and was able to grow in milk. B. infantis had higher adhesion capacity to human Caco-2 cells than the commercial probiotic Bifidobacterium animalis BB12 strain. Moreover, both bacteria secrete heteropolysaccharides (HePS) composed of rhamnose, galactose and glucose. In a dextran sodium sulphate-induced enterocolitis model in zebra fish larvae, treatment with each HePS preparation resulted in a decrease of the larval mortality. In addition, the HePS from B. longum immunomodulated in vitro human macrophages treated with the inflammatory Escherichia coli O111:B4 lipopolysaccharide. Thus, both studied bifidobacteria and their HePS have potential beneficial effects on health and thus, to their application in functional foods.
Publisher version (URL)https://doi.org/10.1016/j.lwt.2018.12.044
URIhttp://hdl.handle.net/10261/186409
DOI10.1016/j.lwt.2018.12.044
ISSN0023-6438
Appears in Collections:(CIB) Artículos
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