Resistant starch utilization by Bifidobacterium, the beneficial human gut bacteria

Resistant starch (RS) reaches the large intestine largely intact, where it is fermented by the gut microbiota, resulting in the production of short-chain fatty acids (SCFAs) that have beneficial effects on the human body. Bifidobacteria are a major species widely used in the probiotic field, and are...

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Bibliographic Details
Published in:Food science and biotechnology 2023-03, Vol.32 (4), p.441-452
Main Authors: Jung, Dong-Hyun, Park, Cheon-Seok
Format: Article
Language:English
Subjects:
Bifidobacterium
Biochemical characteristics
Biochemistry
Chemistry
Chemistry and Materials Science
Degradation
Digestive system
Enzymes
Fatty acids
Food Science
Gastrointestinal tract
Intestinal microflora
Intestine
Large intestine
Metabolism
Nutrition
Probiotics
Review
Starch
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Summary:Resistant starch (RS) reaches the large intestine largely intact, where it is fermented by the gut microbiota, resulting in the production of short-chain fatty acids (SCFAs) that have beneficial effects on the human body. Bifidobacteria are a major species widely used in the probiotic field, and are increased in the gut by RS, indicating their importance in RS metabolism in the intestine. Bifidobacteria have a genetic advantage in starch metabolism as they possess a significant number of starch-degrading enzymes and extraordinary three RS-degrading enzymes, allowing them to utilize RS. However, to date, only three species of RS-degrading bifidobacteria have been reported as single isolates B. adolescentis, B. choerinum , and B. pseudolongum . In this review, we describe recent studies on RS utilization by Bifidobacterium , based on their biochemical characteristics and genetic findings. This review provides a crucial understanding of how bifidobacteria survive in specific niches with abundant RS such as the human gut.
ISSN:1226-7708
2092-6456
DOI:10.1007/s10068-023-01253-w