Probiotic characteristics and in vitro compatibility of a combination of Bifidobacterium breve M-16 V, Bifidobacterium longum subsp. infantis M-63 and Bifidobacterium longum subsp. longum BB536

Marco Toscano, Elena De Vecchi, Arianna Gabrieli, Gian Vincenzo Zuccotti, Lorenzo Drago

Research output: Contribution to journalArticle

8 Citations (Scopus)

Abstract

The consumption of probiotic-based products has risen greatly in recent decades. Due to their probiotic characteristics, microorganisms such as lactobacilli and bifidobacteria are in daily use in the production of food supplements. In the present study, three bifidobacterial strains (Bifidobacterium breve M-16 V, Bifidobacterium longum subsp. infantis M-63 and Bifidobacterium longum subsp. longum BB536) were tested for growth compatibility, resistance to antimicrobial agents, antibacterial activity against pathogens, resistance to gastric acidity, bile salt hydrolysis and adhesion to the human intestinal epithelial cell line HT29. All of these strains were resistant to gentamycin, but none showed in vitro growth incompatibility or the presence of known resistance determinants. B. breve M-16 V had the best probiotic characteristics and, indeed, was the only strain possessing antibacterial activity against Escherichia coli and Klebsiella pneumoniae. All strains were resistant to simulated gastric juice, while only B. longum subsp. longum BB536 and B. breve M-16 V showed a bile salt hydrolytic activity. Interestingly, a strong adhesion to HT29 cells was observed in all Bifidobacterium strains. In conclusion, B. breve M-16 V, B. longum subsp. longum BB536 and B. longum subsp. infantis M-63 showed several promising characteristics as probiotic strains.

Original languageEnglish
Pages (from-to)1079-1086
Number of pages8
JournalAnnals of Microbiology
Volume65
Issue number2
DOIs
Publication statusPublished - Jun 26 2015

Fingerprint

Sulfalene
Probiotics
Bifidobacterium
Bile Acids and Salts
HT29 Cells
Gastric Juice
Klebsiella pneumoniae
Lactobacillus
Growth
Dietary Supplements
Anti-Infective Agents
Gentamicins
Stomach
Hydrolysis
Epithelial Cells
In Vitro Techniques
Bifidobacterium longum
EM 16
Bifidobacterium breve
Escherichia coli

Keywords

  • Bifidobacteria
  • Food supplement
  • Probiotic
  • Safety

ASJC Scopus subject areas

  • Applied Microbiology and Biotechnology

Cite this

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title = "Probiotic characteristics and in vitro compatibility of a combination of Bifidobacterium breve M-16 V, Bifidobacterium longum subsp. infantis M-63 and Bifidobacterium longum subsp. longum BB536",
abstract = "The consumption of probiotic-based products has risen greatly in recent decades. Due to their probiotic characteristics, microorganisms such as lactobacilli and bifidobacteria are in daily use in the production of food supplements. In the present study, three bifidobacterial strains (Bifidobacterium breve M-16 V, Bifidobacterium longum subsp. infantis M-63 and Bifidobacterium longum subsp. longum BB536) were tested for growth compatibility, resistance to antimicrobial agents, antibacterial activity against pathogens, resistance to gastric acidity, bile salt hydrolysis and adhesion to the human intestinal epithelial cell line HT29. All of these strains were resistant to gentamycin, but none showed in vitro growth incompatibility or the presence of known resistance determinants. B. breve M-16 V had the best probiotic characteristics and, indeed, was the only strain possessing antibacterial activity against Escherichia coli and Klebsiella pneumoniae. All strains were resistant to simulated gastric juice, while only B. longum subsp. longum BB536 and B. breve M-16 V showed a bile salt hydrolytic activity. Interestingly, a strong adhesion to HT29 cells was observed in all Bifidobacterium strains. In conclusion, B. breve M-16 V, B. longum subsp. longum BB536 and B. longum subsp. infantis M-63 showed several promising characteristics as probiotic strains.",
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T1 - Probiotic characteristics and in vitro compatibility of a combination of Bifidobacterium breve M-16 V, Bifidobacterium longum subsp. infantis M-63 and Bifidobacterium longum subsp. longum BB536

AU - Toscano, Marco

AU - De Vecchi, Elena

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AU - Zuccotti, Gian Vincenzo

AU - Drago, Lorenzo

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AB - The consumption of probiotic-based products has risen greatly in recent decades. Due to their probiotic characteristics, microorganisms such as lactobacilli and bifidobacteria are in daily use in the production of food supplements. In the present study, three bifidobacterial strains (Bifidobacterium breve M-16 V, Bifidobacterium longum subsp. infantis M-63 and Bifidobacterium longum subsp. longum BB536) were tested for growth compatibility, resistance to antimicrobial agents, antibacterial activity against pathogens, resistance to gastric acidity, bile salt hydrolysis and adhesion to the human intestinal epithelial cell line HT29. All of these strains were resistant to gentamycin, but none showed in vitro growth incompatibility or the presence of known resistance determinants. B. breve M-16 V had the best probiotic characteristics and, indeed, was the only strain possessing antibacterial activity against Escherichia coli and Klebsiella pneumoniae. All strains were resistant to simulated gastric juice, while only B. longum subsp. longum BB536 and B. breve M-16 V showed a bile salt hydrolytic activity. Interestingly, a strong adhesion to HT29 cells was observed in all Bifidobacterium strains. In conclusion, B. breve M-16 V, B. longum subsp. longum BB536 and B. longum subsp. infantis M-63 showed several promising characteristics as probiotic strains.

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