Cited by 247Probiotics and Fermented FoodsInfant Nutrition and HealthGut microbiota and health

Culture-dependent and culture-independent qualitative analysis of probiotic products claimed to contain bifidobacteria

Masco, L., Huys, G., De Brandt, E., Temmerman, R., Swings, J.·2005·International Journal of Food Microbiology

Abstract

A total of 58 probiotic products obtained worldwide, which were claimed to contain Bifidobacterium strains (including 22 yoghurts, 5 dairy fruit drinks, 28 food supplements and 3 pharmaceutical preparations) were investigated in parallel using a culture-dependent and a culture-independent approach. Three isolation media previously reported as selective for Bifidobacterium were evaluated for their suitability in the quality analysis of these products. Subsequently, possible bifidobacterial colonies were picked from the best medium and identified by means of rep-PCR fingerprinting using the BOX primer (BOX-PCR). Bifidobacterium animalis subsp. lactis, formerly classified as Bifidobacterium lactis, was most frequently found, but strains belonging to Bifidobacterium longum biotypes longum and infantis, Bifidobacterium bifidum and Bifidobacterium breve were recovered also. In parallel, all products were also subjected to culture-independent analysis which involved a nested-PCR step on total bacterial DNA extracted directly from the product, followed by separation of the amplicons by Denaturing Gradient Gel Electrophoresis (DGGE) and subsequent identification of species from the band patterns. By conventional cultivation, 70.7% of the products analysed were found to contain culturable bifidobacteria whereas by culture-independent DGGE analysis members of the genus Bifidobacterium could be detected in 96.5% of the analysed products. Genotypic characterization of a number of bifidobacterial isolates at the strain level by means of Pulsed-Field Gel Electrophoresis (PFGE) revealed a relatively high degree of genomic homogeneity among the Bifidobacterium strains currently used in the probiotic industry.

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Crossref · 10.1016/j.ijfoodmicro.2004.11.018

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  • In the human gut the most commonly found species of Bifidobacterium genus include B. adolescentis, B. angulatum, B. bifidum, B. breve, B. catenulatum, B. dentium, B. longum, B. pseudocatenulatum, and B. pseudolongum, whereas B. animalis subsp. lactis is the species most often included in functional foods and food supplements.

    “In the human gut the most commonly found species of Bifidobacterium genus include B. adolescentis, B. angulatum, B. bifidum, B. breve, B. catenulatum, B. dentium, B. longum, B. pseudocatenulatum, and B. pseudolongum [91] , whereas B. animalis subsp.lactis is the species most often included in functional foods and food supplements [92] .”

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Authors
Masco, L., Huys, G., De Brandt, E., Temmerman, R., & Swings, J.
Affiliations
Ghent University (BE)
Corresponding author
Masco, L.
Venue
International Journal of Food Microbiology
Publisher
Elsevier BV
Published
2005-07
Volume
102
Issue
2
Pages
221-230
ISSN
0168-1605 (ISSN-L)
OpenAlex
W2045664599
Cited by
247
References
22
Citations by year
2026: 2 · 2025: 3 · 2024: 4 · 2023: 9 · 2022: 4 · 2021: 7 · 2020: 10 · 2019: 5 · 2018: 5 · 2017: 15 · 2016: 9 · 2015: 14 · 2014: 22 · 2013: 16 · 2012: 22
FWCI
24.50
Type
journal article
Language
en
Open access
closed
Locations
  • International Journal of Food Microbiology (publishedVersion)
  • PubMed (publishedVersion)
  • Ghent University Academic Bibliography (Ghent University) (submittedVersion)
Topics
  • Life Sciences › Agricultural and Biological Sciences › Food Science › Probiotics and Fermented Foods
  • Health Sciences › Nursing › Nutrition and Dietetics › Infant Nutrition and Health
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Gut microbiota and health
Keywords
probiotic products, Bifidobacterium, yogurt, dietary supplements, pharmaceutical preparations, selective isolation media, BOX-PCR fingerprinting, denaturing gradient gel electrophoresis, pulsed-field gel electrophoresis, Bifidobacterium animalis subsp. lactis, Bifidobacterium longum, Bifidobacterium bifidum, Bifidobacterium breve, probiotic quality control
MeSH terms
Bifidobacterium, Culture Media, DNA, Bacterial, Electrophoresis, Agar Gel, Food Labeling, Humans, Colony Count, Microbial, Polymerase Chain Reaction, Electrophoresis, Gel, Pulsed-Field, Probiotics

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