Survival of bifidobacteria in adult intestinal tract

Grmanová, M.; Vlková, Eva; Rada, V.; Homutová, I.

doi:10.1007/s12223-010-0042-5

Cited by 9 publications

(2 citation statements)

References 21 publications

(16 reference statements)

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“…The results of the survival under acidic conditions confirmed bifidobacteria sensitivity towards low pH, as reported by literature [11,12].…”

Section: Cell Numbers Of Bifidobacteria (Log Cfu/ml) In Saline Solusupporting

confidence: 88%

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Bifidobacteria as Potential Functional Starter Cultures: A Case Study by MSc Students in Food Science and Technology (University of Foggia, Southern Italy)

Bevilacqua¹,

Cagnazzo²,

Caldarola³

et al. 2012

FNS

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This research paper was the results of activity of MSc students of Food Science and Technology, attending the class “Biotechnology of Functional Starter”. Five strains of bifidobacteria (Bifidobacterium animalis subsp. lactis; B. longum subsp. infantis; B. breve; B. animalis subsp. animalis; B. bifidum) were evaluated in order to assess their suitability as functional starter cultures, by studying the following technological and probiotic traits: growth at different temperatures, NaCl amounts and pH values; acidifying ability; metabolism (arginin deamination, esculin hydrolysis, acetoin production); survival at low pH and in presence of bile salts; hydrophobic properties; antibiotic resistance. After laboratory assays and strain selection through a multivariate analyses, it was highlighted that B. longum subsp. infantis and B. animalis subsp. lactis represent a good compromise as potential functional starter cultures, as B. animalis subp. lactis showed a high growth index at pH 5 and good values at 25?C and 30?C, as well as the minimal viability loss at pH 2.5. B. longum subsp. infantis DSMZ 20088 was the best microorganism for its growth index in presence of 6.5% of salt added and at 25?C and 30?C

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“…The results of the survival under acidic conditions confirmed bifidobacteria sensitivity towards low pH, as reported by literature [11,12].…”

Section: Cell Numbers Of Bifidobacteria (Log Cfu/ml) In Saline Solusupporting

confidence: 88%

“…Finally, bifidobacteria showed an hydrophobic index of 0% -5%, thus confirming the idea of Gramovà et al [12], i.e. although bifidobacteria can survive the passage through the gastrointestinal tract, they do not colonize the gastrointestinal tract permanently.…”

Section: Cell Numbers Of Bifidobacteria (Log Cfu/ml) In Saline Solusupporting

confidence: 85%

Bifidobacteria as Potential Functional Starter Cultures: A Case Study by MSc Students in Food Science and Technology (University of Foggia, Southern Italy)

Bevilacqua¹,

Cagnazzo²,

Caldarola³

et al. 2012

FNS

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Anaerobic Probiotics: The Key Microbes for Human Health

Enshasy

Malik

Malek

et al. 2015

Advances in Biochemical Engineering/Biotechnology

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Human gastrointestinal microbiota (HGIM) incorporate a large number of microbes from different species. Anaerobic bacteria are the dominant organisms in this microbial consortium and play a crucial role in human health. In addition to their functional role as the main source of many essential metabolites for human health, they are considered as biotherapeutic agents in the regulation of different human metabolites. They are also important in the prevention and in the treatment of different physical and mental diseases. Bifidobacteria are the dominant anaerobic bacteria in HGIM and are widely used in the development of probiotic products for infants, children and adults. To develop bifidobacteria-based bioproducts, therefore, it is necessary to develop a large-scale biomass production platform based on a good understanding of the ideal medium and bioprocessing parameters for their growth and viability. In addition, high cell viability should be maintained during downstream processing and storage of probiotic cell powder or the final formulated product. In this work we review the latest information about the biology, therapeutic activities, cultivation and industrial production of bifidobacteria.

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In vitro Utilization of Gold and Green Kiwifruit Oligosaccharides by Human Gut Microbial Populations

Parkar

Rosendale

Paturi

et al. 2012

Plant Foods Hum Nutr

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We examined the effects of whole kiwifruit on gut microbiota using an in vitro batch model of gastric-ileal digestion and colonic fermentation. Faecal fermentations of gold and green kiwifruit, inulin and water (control) digests were performed for up to 48 h. As compared to the control, gold and green kiwifruit increased Bifidobacterium spp. by 0.9 and 0.8 log(10) cfu/ml, respectively (P < 0.001), and the Bacteroides-Prevotella-Porphyromonas group by 0.4 and 0.5 log(10) cfu/ml, respectively. Inulin only had a bifidogenic effect (+0.4 log(10) cfu/ml). This was accompanied with increases in microbial glycosidases, especially those with substrate specificities relating to the breakdown of kiwifruit oligosaccharides, and with increased generation of short chain fatty acids. The microbial metabolic activity was sustained for up to 48 h, which we attribute to the complexity of the carbohydrate substrate provided by whole kiwifruit. Kiwifruit fermenta supernatant was also separately shown to affect the in vitro proliferation of Bifidobacterium longum, and its adhesion to Caco-2 intestinal epithelial cells. Collectively, these data suggest that whole kiwifruit may modulate human gut microbial composition and metabolism to produce metabolites conducive to increased bifidobacteria-host association.

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Survival of bifidobacteria in adult intestinal tract

Cited by 9 publications

References 21 publications

Bifidobacteria as Potential Functional Starter Cultures: A Case Study by MSc Students in Food Science and Technology (University of Foggia, Southern Italy)

Bifidobacteria as Potential Functional Starter Cultures: A Case Study by MSc Students in Food Science and Technology (University of Foggia, Southern Italy)

Anaerobic Probiotics: The Key Microbes for Human Health

In vitro Utilization of Gold and Green Kiwifruit Oligosaccharides by Human Gut Microbial Populations

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