Matouskova, P.; Hoova, J.; Rysavka, P.; Marova, I. Stress Effect of Food Matrices on Viability of Probiotic Cells during Model Digestion. Microorganisms2021, 9, 1625.
Matouskova, P.; Hoova, J.; Rysavka, P.; Marova, I. Stress Effect of Food Matrices on Viability of Probiotic Cells during Model Digestion. Microorganisms 2021, 9, 1625.
Matouskova, P.; Hoova, J.; Rysavka, P.; Marova, I. Stress Effect of Food Matrices on Viability of Probiotic Cells during Model Digestion. Microorganisms2021, 9, 1625.
Matouskova, P.; Hoova, J.; Rysavka, P.; Marova, I. Stress Effect of Food Matrices on Viability of Probiotic Cells during Model Digestion. Microorganisms 2021, 9, 1625.
Abstract
The aim was to evaluate the influence of model (alcohol, sugar, salt, protein and acid) and real foods and beverages on the viability of probiotics during incubation and artificial digestion. Viability of monocultures Lactobacillus acidophilus CCM4833 and Bifidobacterium breve CCM7825T and commercial mixture of 9 probiotic bacterial strains were tested by cultivation assay and flow cytometry. In model foods, the best viability was determined in the presence of 0.2 g/L glucose, 10% albumin and 10% ethanol. As the most suitable real food for probiotic survival complex protein and carbohydrate substrates were found, such as beef broth, potato salad with pork, chicken with rice, chocolate spread, porridge and yoghurt. The best liquid was milk and meat broth, followed by coca-cola, beer and coffee. Viability of probiotics was higher when consumed with meals than with beverages only. Addition of prebiotics increased the viability of probiotics especially in presence of instant and fast foods. Generally, the highest viability of probiotics during artificial digestion was observed in mixed culture in presence of protein, sugar and fat or their combination. The increase of cell viability observed in such foods during model digestion may further contribute to the positive effect of probiotics on human health.
Keywords
Probiotics; food matrices; food stress; cell viability; model digestion
Subject
Biology and Life Sciences, Biochemistry and Molecular Biology
Copyright:
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
