Improving the viability and metabolism of intestinal probiotic bacteria using fibre obtained from vegetable by-products
2021
Rivas Muñoz, María Ángeles | Benito Bernáldez, María José | Ruiz-Moyano Seco de Herrera, Santiago | Martín González, Alberto | Córdoba Ramos, María Guía | Vázquez Merchán, Almudena | Casquete Palencia, Rocío | Universidad de Extremadura. Instituto Universitario de Investigación de Recursos Agrarios (INURA) | Universidad de Extremadura. Departamento de Producción Animal y Ciencias de los Alimentos
This study evaluated the effect of dietary fibre obtained from pomegranate, tomato, grape and broccoli by-products on the gastrointestinal transit survival, growth, and metabolism of six probiotic strains. The results showed that the studied by-products contained variable amounts of polysaccharides that affected the six probiotic microorganisms in different ways. In addition, the protective effect of the fibre obtained on the probiotic strains was more effective in the case of the fibre obtained from tomato peel. In terms of growth, grape stems showed the best results, favouring the growth of lactic acid bacteria. Finally, all fibres were able to increase the content of short-chain fatty acids in the in vitro test, but broccoli stems and pomegranate peel stimulated higher production of short-chain fatty acids. The results of this study demonstrate that plant by-product fibres can improve survival, growth, and metabolism in terms of the fatty acid profiles of probiotic strains, highlighting the desirability of harnessing these by-product fibres to develop new high-value-added ingredients as probiotic carriers.
Afficher plus [+] Moins [-]Junta de Extremadura with the projects IB16158, TA18007 and GR18165.
Afficher plus [+] Moins [-]peerReviewed
Afficher plus [+] Moins [-]Mots clés AGROVOC
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