<abstract xmlns="http://www.w3.org/1999/xhtml">

<p>In an <italic>in vitro</italic> experiment commercially available probiotic products were tested for the survival of bacteria under conditions of simulated human digestion either when used alone or mixed into yogurt. In the <italic>in vivo</italic> experiment the effects of feeding a whey- and milk-based yogurt prepared with the probiotic strain showing adequate survival in the <italic>in vitro</italic> experiment, was measured on body weight, feed consumption and immune response of rats (IgG and IgA level after immunisation), on the composition and volatile fatty acid production of the intestinal microbiota and on the structure of intestinal villi. The <italic>Lactobacillus acidophilus</italic> (LA-15) strain had inadequate surviving ability in rats. <italic>Bifidobacterium animalis</italic> ssp<italic>. lactis</italic> (BB-12) improved the composition of the intestinal microflora, whereas whey-containing product had a mild immunostimulating effect and exerted a favourable influence on the morphology of intestinal villi. The consumption of yogurts increased the depth of crypts in the ileum, which resulted in enhanced secretion and thus softer faeces.</p>
</abstract>

In an in vitro experiment commercially available probiotic products were tested for the survival of bacteria under conditions of simulated human digestion either when used alone or mixed into yogurt. In the in vivo experiment the effects of feeding a whey- and milk-based yogurt prepared with the probiotic strain showing adequate survival in the in vitro experiment, was measured on body weight, feed consumption and immune response of rats (IgG and IgA level after immunisation), on the composition and volatile fatty acid production of the intestinal microbiota and on the structure of intestinal villi. The Lactobacillus acidophilus (LA-15) strain had inadequate surviving ability in rats. Bifidobacterium animalis ssp. lactis (BB-12) improved the composition of the intestinal microflora, whereas whey-containing product had a mild immunostimulating effect and exerted a favourable influence on the morphology of intestinal villi. The consumption of yogurts increased the depth of crypts in the ileum, which resulted in enhanced secretion and thus softer faeces.

Physiological Effects of Whey- and Milk-Based Probiotic Yogurt in Rats

Faculty of Agricultural and Environmental Sciences

Polish Journal of Microbiology

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

{"article-title":"Physiological Effects of Whey- and Milk-Based Probiotic Yogurt in Rats"}

In an in vitro experiment commercially available probiotic products were tested for the survival of bacteria under conditions of simulated human digestion...

Physiological Effects of Whey- and Milk-Based Probiotic Yogurt in Rats

Published Online: Dec 04, 2017

Page range: 483 - 490

Received: Mar 27, 2017

Accepted: May 17, 2017

DOI: https://doi.org/10.5604/pjm-2017-483

Keywords
rat intestine physiology, physiological effect of whey and yogurt

© 2017 JUDIT SZABÓ-FODOR et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Physiological Effects of Whey- and Milk-Based Probiotic Yogurt in Rats

Published Online: Dec 04, 2017

Page range: 483 - 490

Received: Mar 27, 2017

Accepted: May 17, 2017

DOI: https://doi.org/10.5604/pjm-2017-483

Keywordsrat intestine physiology, physiological effect of whey and yogurt

© 2017 JUDIT SZABÓ-FODOR et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Keywords
rat intestine physiology, physiological effect of whey and yogurt