Potentiality of yeasts obtained as beer fermentation residue to be used as probiotics

Beer is the most consumed alcoholic beverage worldwide and brewery is a growing industry. Biomass by-product of beer production is constituted by viable and non-viable flocculated yeasts which are discarded. To increase the value of this waste, the potential applications of the beer fermentation res...

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Autores principales: Sampaolesi, Sofía, Gamba, Raúl Ricardo, De Antoni, Graciela Liliana, León Peláez, Ángela María
Formato: Articulo Preprint
Lenguaje:Inglés
Publicado: 2019
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Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/128560
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id I19-R120-10915-128560
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Bioquímica
Brewing yeast
Beer fermentation residue
Aflatoxin B1 binding
Probiotic
spellingShingle Bioquímica
Brewing yeast
Beer fermentation residue
Aflatoxin B1 binding
Probiotic
Sampaolesi, Sofía
Gamba, Raúl Ricardo
De Antoni, Graciela Liliana
León Peláez, Ángela María
Potentiality of yeasts obtained as beer fermentation residue to be used as probiotics
topic_facet Bioquímica
Brewing yeast
Beer fermentation residue
Aflatoxin B1 binding
Probiotic
description Beer is the most consumed alcoholic beverage worldwide and brewery is a growing industry. Biomass by-product of beer production is constituted by viable and non-viable flocculated yeasts which are discarded. To increase the value of this waste, the potential applications of the beer fermentation residue (BFR) as probiotic and bio-preservative were studied. Strains isolated from commercial brewing starters and BFRs were identified. The M6 BFR and its constituent strains, Saccharomyces cerevisiae CMUNLPY6.2 and Pichia kudriavzevii CMUNLPY6.1, proved to be the most resistant to gastrointestinal conditions in vitro. The cell-free supernatants obtained from micro-fermentations were capable to reduce Aspergillus flavus and Aspergillus parasiticus germination, two species well-known to produce the potent carcinogenic aflatoxin B1 (AFB1). A cytoprotective effect of the BFRs against AFB1 on HepG2 cells was observed. Brewing yeasts bound AFB1 in vitro, thus reducing the cell damage induced by the toxin. Throughout the study, yeasts grown in brewing wort showed better probiotic properties than the same yeasts grown in YPD broth. These results suggest that the wastes obtained from brewery would become a high-value probiotic product.
format Articulo
Preprint
author Sampaolesi, Sofía
Gamba, Raúl Ricardo
De Antoni, Graciela Liliana
León Peláez, Ángela María
author_facet Sampaolesi, Sofía
Gamba, Raúl Ricardo
De Antoni, Graciela Liliana
León Peláez, Ángela María
author_sort Sampaolesi, Sofía
title Potentiality of yeasts obtained as beer fermentation residue to be used as probiotics
title_short Potentiality of yeasts obtained as beer fermentation residue to be used as probiotics
title_full Potentiality of yeasts obtained as beer fermentation residue to be used as probiotics
title_fullStr Potentiality of yeasts obtained as beer fermentation residue to be used as probiotics
title_full_unstemmed Potentiality of yeasts obtained as beer fermentation residue to be used as probiotics
title_sort potentiality of yeasts obtained as beer fermentation residue to be used as probiotics
publishDate 2019
url http://sedici.unlp.edu.ar/handle/10915/128560
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