Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 52 for “"Bifidobacteria"”.
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Comparative genomics of Bifidobacteria
… thesis describes the sequence analysis of 14 bifidobacterial genomes from various species of the genus Bifidobacterium, and the determination of their open pan-genome trend. This analysis first determined the total number of genes to be considered as the reservoir of functions available to …
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Resistance to antimicrobial agents in bifidobacteria
For bifidobacteria to survive and achieve colonisation, they have to interact with inhibitory host-produced substances such as bile salts. Another aspect which should be studied is the safety of the probiotic bacterium and risks of acquisition of genes for resistance to antimicrobial agents. …
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Growth Characteristics of Bifidobacteria in Ultrafiltered Milk
… had on growth, acid production and activity of bifidobacteria.</p>
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Growth Characteristics of Bifidobacteria in Infant Formulas
<p>Four strains of bifidobacteria; B. bifidum (ATCC 15696), B. longum (ATCC 15708), B. breve (ATCC 15700), and B. infantis (ATCC 15697) were rehydrated in MRS broth and inoculated at 2.5% into three types of infant formula: soy-based (SB), milk-based (MB), casein-hydrolyzed (CH), and control, non …
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Interactions between bifidobacteria and other human intestinal microbial populations
… mediante cultivos fecales, que los EPS de bifidobacterias tienen la capacidad de modular la microbiota intestinal. Aumentaron las poblaciones de bifidobacterias y Bacteroides, obteniéndose mayores niveles de ácido propiónico respecto a los cultivos con glucosa. Por otro lado, algunos …
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Identification, antimicrobial susceptibility and functionality of potentially probiotic bifidobacteria
Om een wetenschappelijk verantwoord probiotisch product op de markt te introduceren is het van uitermate groot belang dat de gebruikte probiotische stammen correct geïdentificeerd zijn en onderworpen worden aan grondig onderzoek naar hun veiligheid en functionaliteit vooraleer klinische studies …
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Comparative genome analysis of human bifidobacteria with commercial potential
… data revealed a closed pan-genome for this bifidobacterial species and furthermore facilitated the definition of the B. longum core genome. The comparative analysis also highlights differences in the potential metabolic abilities of all three sub-species. Interestingly, phylogenetic analysis …
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Metabolism of human milk oligosaccharides by infant-associated bifidobacteria
Bifidobacteria are Gram-positive, anaerobic bacteria belonging to the Actinobacteria phylum, and are commensals of the mammalian, avian and occasionally insect gastrointestinal tracts. In humans, bifidobacteria are typically highly abundant in the intestinal microbiota of healthy breastfed infants, …
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In-Vivo and In-Vitro Cholesterol Removal by Lactobacilli and Bifidobacteria
… bile. Most strains of lactobacilli and bifidobacteria exhibited highest total BSH activity (1.60-1.99 U/mL for lactobacilli and 0.87-1.39 U/mL for bifidobacteria) in bile salt mixture (2.8 mM sodium glucocholate and 1.2 mM sodium taurocholate) than individual conjugated bile. …
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Isolation and characterisation of bifidobacteria populations in infants in the Khomas region, Namibia
Bacteria belonging to the genus bifidobacteria are reported to be the most abundant gut endosymbiotic flora in the intestinal tract of new-born infants, particularly those that have been exclusively breast-fed. This high concentration of this gram-positive anaerobic bacteria has been attributed to …
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Evaluation of survival and recovery characteristics of bifidobacteria as indicators of fecal pollution of water
… in use today meet all of these requirements. Bifidobacteria show promise as indicators of fecal pollution in water with the additional ability of potentially distinguishing between fecal pollution of human and animal origin. In laboratory microcosm experiments, the survival of the …
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Viability and therapeutic properties of probiotic bacteria
… bacteria {Lactobacillus acidophilus and bifidobacteria) in yogurt products obtained from 5 major manufacturers was carriedout at 3-day interval over a 5-week period. The results showed that most products contained low numbers of L. acidophilus and bifidobacteria. Based on this screening, …
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The effects of oligosaccharides and probiotic bacteria on the intestinal microflora and vancomycin-resistant enterococcus
… this study were: 1) to investigate the effect of bifidobacteria and oligosaccharides on their role in suppressing the growth of pathogenic bacteria in vitro, 2) to investigate the growth, viability and activity of Bifidobacterium spp. in skim milk containing prebiotics, 3) to investigate the …
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Characterization of the vaginal microbiome in pregnancy
… has been gradually increasing. Although bifidobacteria play an important role in gut health, vaginal bifidobacteria have not yet been fully characterized. In this study, a baseline description of the "healthy" vaginal microbiome in pregnancy has been established based on cpn60 gene …
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Probiotic characterization of Bifidobacterium spp. isolated from commercial fermented milk in the UK
… to study the identity and survival of probiotic bifidobacteria in fermented dairy products from the UK market throughout their shelf- life and carry out in vitro studies on some of the probiotic criteria and potential functional properties of the isolates including resistance to stomach-intestine …
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Probiotic metabolism of human milk oligosaccharides (HMOs) and prebiotics
… serve as prebiotics by promoting the growth of bifidobacteria in the infant gastrointestinal tract (GIT). In this study, the first aim was to investigate the probiotic metabolism of HMOs and HMO precursors. Growth parameters were determined by inoculating glucose-grown cultures into basal deMan …
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Bifidobacterial interactions with human milk oligosaccharides and their combined potential for the advancement of infant nutrition
… HMO combinations, cooperative metabolism of bifidobacteria, the impact of these factors on gut microbiota composition and functionality, and the ability of HMOs to enhance bifidobacterial intestinal adhesion. Addressing these topics is of importance in order to advance infant nutrition, as …
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Influence of oligosaccharides and fish oil on gastrointestinal tract characteristics and metabolic profiles of humans, pigs, and rats
… (FA) with a concomitant decrease in n-6 FA. Bifidobacteria were unaffected by treatment. Experiment 2, forty-eight barrows were assigned to the enteral diets used in the human study to assess effects on bifidobacteria, serum metabolites, hematology, urinalysis, phospholipid FA, and …
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Bacterial production of poly-γ-glutamic acid and evaluation of its effect on the viability of probiotic microorganisms
… (orange juice) for delivery of probiotics. Two Bifidobacteria strains protected with γ-PGA survived significantly better (P < 0.05) in orange juice for 39 days, with a log reduction in viability of less than 2.99 CFU/ml, when compared to unprotected cells, which showed complete loss in viability …
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Factors affecting viability of yoghurt and probiotic bacteria in commercial starter cultures
… bacteria (Lactobacillus acidophilus and bifidobacteria) in commercial starter cultures. T o achieve the objectives of the study, it was essential to standardise the protocols for selective/differential enumeration of yoghurt and probiotic bacteria in yoghurt containing all the four …
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