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KMID : 0364820200560020118
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Korean Journal of Microbiology
2020 Volume.56 No. 2 p.118 ~ p.125
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Effects of probiotics on fiber depleted rat gut microbiota
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Kim Ji-Yeon
Hwang Nak-Won
Unno Tatsuya
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Abstract
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Probiotics are live microoganisms that are intended to have health benefits when consumed or applied to the body. These
probiotics have become very popular as a functional food supplement that improve intestinal health. Korean dietary habits had become more and more westernized since the modernization in this generation, which subsequently lead to an increase in the use of probiotics supplements. As probiotics are bacteria that obtain energy from digesting dietary fibers,
there is a need for investigation if probiotics are active in the gut of humans who are depleted with dietary habits. Here, we
investigated effects of probiotics on rat gut microbiota fed low-fiber diets for 4 weeks. Our results showed that feeding low fiber diet significantly shifted the gut microbiota to obese type of microbiota (high Firmicutes and low Bacteroidetes).
While the use of probiotics is supposed to shift it back, it did not shift the gut microbiota, but abundance of some species was significantly changed, leading to change the co-abundance patterns of several species of bacteria. The study presents the importance of fiber consumption for probiotics to work efficiently in the gut.
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KEYWORD
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dietary fiber, gut health, gut microbiota, probiotics
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