Cited by 53Probiotics and Fermented FoodsReproductive tract infections researchInfant Nutrition and Health

Aciduric Strains of Lactobacillus reuteri and Lactobacillus rhamnosus, Isolated from Human Feces, Have Strong Adhesion and Aggregation Properties

Klopper, Kyle B., Deane, Shelly M., Dicks, Leon M. T.·2018·Probiotics and Antimicrobial Proteins

Abstract

Human feces were streaked onto MRS Agar adjusted to pH 2.5, 3.0, and 6.4, respectively, and medium supplemented with 1.0% (w/v) bile salts. Two aciduric strains, identified as Lactobacillus reuteri HFI-LD5 and Lactobacillus rhamnosus HFI-K2 (based on 16S rDNA and recA sequences), were non-hemolytic and did not hydrolyze mucin. The surface of Lactobacillus reuteri HFI-LD5 cells has a weak negative charge, whereas Lactobacillus rhamnosus HFI-K2 has acidic and basic properties, and produces exopolysaccharides (EPS). None of the strains produce bacteriocins. Both strains are resistant to several antibiotics, including sulfamethoxazole-trimethoprim and sulphonamides. The ability of Lactobacillus reuteri HFI-LD5 and Lactobacillus rhamnosus HFI-K2 to grow at pH 2.5 suggests that they will survive passage through the stomach. EPS production may assist in binding to intestinal mucus, especially in the small intestinal tract, protect epithelial cells, and stimulate the immune system. Lactobacillus reuteri HFI-LD5 and Lactobacillus rhamnosus HFI-K2 may be used as probiotics, especially in the treatment of small intestinal bacterial overgrowth (SIBO).

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Crossref · 10.1007/s12602-017-9307-5

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Authors
Klopper, K. B., Deane, S. M., & Dicks, L. M. T.
Affiliations
Stellenbosch University (ZA)
Corresponding author
Dicks, Leon M. T.
Venue
Probiotics and Antimicrobial Proteins
Published
2017-07-29
Volume
10
Issue
1
Pages
89-97
ISSN
  • 1867-1306 (ISSN-L)
  • 1867-1314
OpenAlex
W2740560827
Cited by
53
References
72
Citations by year
2026: 7 · 2025: 4 · 2024: 5 · 2023: 11 · 2022: 7 · 2021: 4 · 2020: 3 · 2019: 7 · 2018: 5
FWCI
4.61
Type
journal article
Language
en
Open access
closed
Locations
  • Probiotics and Antimicrobial Proteins (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Life Sciences › Agricultural and Biological Sciences › Food Science › Probiotics and Fermented Foods
  • Life Sciences › Immunology and Microbiology › Microbiology › Reproductive tract infections research
  • Health Sciences › Nursing › Nutrition and Dietetics › Infant Nutrition and Health
Keywords
Lactobacillus reuteri, Lactobacillus rhamnosus, acid resistance, bile salt tolerance, bacterial adhesion, bacterial aggregation, exopolysaccharide production, cell surface charge, antibiotic resistance, probiotics, small intestinal bacterial overgrowth
MeSH terms
Acids, Bacterial Adhesion, Epithelial Cells, Feces, Humans, Intestine, Small, Mucus, Probiotics, Limosilactobacillus reuteri, Lacticaseibacillus rhamnosus

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