The influence of different types of ß-glucans on the gut microbiota of rats fed milk gels
2022
Marek Aljewicz | Beata Nalepa | Sławomir Ciesielski
The effect of glucans on gut microbiota functions is still unclear. Therefore, this study was undertaken to describe the influence of structurally different ß-glucans (oat ß-glucan, curdlan and scleroglucan) on the structure of the gut microbiome in rats. The structure of intestinal microbiota was evaluated by high-throughput sequencing of the16S rRNA gene. Firmicutes and Bacteroidetes were the dominant bacterial phyla in all animals. Oat ß-glucan contributed to a higher prevalence of bacterial genera Clostridium sensu stricto and Blautia, whereas curdlan increased the relative abundance of Akkermansia muciniphila. A positive correlation was noted between the relative abundance of Streptococcus bacteria and the growth rate of rats. The present study demonstrated that the consumption of non-acidified milk gels or acidified milk gels with a β-glucan dose recommended by EFSA (3.0–4.0 g per day) for 28 days did not induce significant changes in the structure of the gut microbiome in rats.
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