Functionality of enterococci in dairy products

Giraffa, Giorgio

doi:10.1016/s0168-1605(03)00183-1

Cited by 594 publications

(545 citation statements)

References 42 publications

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“…has been reported for many researchers to be a source of lipolytic enzymes intestine of warm-blooded animals (MARTÍN-PLATERO et al, 2009;FRANZ et al, 2011). However, due to its aptitude to resist or grow in hostile environments such as extreme pH, temperatures, and salinity, Enterococcus can be found in many foods such as milk, cheese, fermented sausage, and fermented olives (GIRAFFA, 2003;MARTÍN-PLATERO et al, 2009). This explains the presence of enterococci in samples of CW and DDWG.…”

Section: Discussionmentioning

confidence: 99%

Isolation and characterization of bacterial strains with a hydrolytic profile with potential use in bioconversion of agroindustial by-products and waste

et al. 2013

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Section: Discussionmentioning

confidence: 99%

Isolation and characterization of bacterial strains with a hydrolytic profile with potential use in bioconversion of agroindustial by-products and waste

et al. 2013

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“…The resistance often determined among enterococci from food is that against vancomycin and teicoplanin (Giraffa 2003). Also, Riboldi et al (2009) isolated Enterococcus spp.…”

Section: Antibiotic Resistance Of Enterococci Strainsmentioning

confidence: 99%

Antibiotic resistance of enterococci, coagulase negative staphylococci and Staphylococcus aureus isolated from chicken meat

Yurdakul¹,

Erginkaya²,

Ünal³

2013

Czech J. Food Sci.

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Yurdakul N.E., Erginkaya Z., Ünal E. (2013): Antibiotic resistance of enterococci, coagulase negative staphylococci and Staphylococcus aureus isolated from chicken meat. Czech J. Food Sci., 31: 14-19.We determined the antibiotic resistance of enterococci, coagulase negative staphylococci, and Staphylococcus aureus isolated from chicken meat samples. The antibiotic resistance of the isolated strains was estimated by the KirbyBauer disk diffusion method (according to the NCCLS document M2-A9 suggestions). It was found that all strains of Enterococcus spp. were resistant to tetracycline, 75% of them were resistant to ciprofloxacin, and 50% of them were resistant to erythromycin, vancomycin, and chloramphenicol. Also all strains of S. aureus were resistant to tetracycline and 25% of S. aureus strains were resistant to erythromycin and chloramphenicol, whereas all strains of S. aureus were sensitive to teicoplanin and 25% of them were sensitive to vancomycin and ciprofloxacin. As for the isolate of coagulase negative staphylococci (CNS), 68.1% of them were resistant to erythromycin, 77.2% of them were resistant to tetracycline, 59% of them were resistant to vancomycin, 9% of them were resistant to teicoplanin, and 27.2% of them were resistant to both chloramphenicol and ciprofloxacin. As a result, it was found that most of the strains (all of S. aureus and Enterococcus spp., also 77.2% CNS) were resistant to tetracycline.

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“…Among the numerous intestinal microbes, Lactobacillus, Bifidobacterium and Enterococcus have been demonstrated to affect the host beneficially by improving the intestinal microbial balance and hence are categorized as probiotics (Ishibashi & Yamazaki, 2001). Among several enterococcal species, Enterococcus faecium and Enterococcus faecalis are the two predominant species in the human intestine (Giraffa, 2003). Enterococci are added to fermented foods as they contribute to organoleptic properties (Bhardwaj et al, 2009).…”

Section: Introductionmentioning

confidence: 99%

Probiotic attributes, antioxidant, anti-inflammatory and neuromodulatory effects of Enterococcus faecium CFR 3003: in vitro and in vivo evidence

Divyashri

Krishna

Muralidhara

et al. 2015

Journal of Medical Microbiology

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Accumulating evidence suggests that probiotic bacteria play a vital role in modulating various aspects integral to the health and well-being of humans. In the present study, probiotic attributes and the antioxidant, anti-inflammatory and neuromodulatory potential of Enterococcus faecium CFR 3003 were investigated by employing suitable model systems. E. faecium exhibited robust resistance to gastrointestinal stress conditions as it could withstand acid stress at pH 1.5, 2 and 3. The bacterium also survived at a bile salt concentration of 0.45 %, and better tolerance was observed towards pepsin and trypsin. E. faecium produced lactic acid as a major metabolic product, followed by butyric acid. Lyophilized cell-free supernatant (LCS) of E. faecium exhibited significant antioxidant capacity evaluated against 1,1-diphenyl-2-picryl-hydrazyl, ascorbate autooxidation, oxygen radical absorbance and reducing power. Interestingly, E. faecium, Lactobacillus rhamnosus GG MTCC 1408 and LCS showed a significant anti-inflammatory effect by negatively modulating TNF-a production and upregulating IL-10 levels in LPS-stimulated macrophage cell lines. In an in vivo mice model, the propensity of probiotic supplements to modulate endogenous oxidative markers and redox status in brain regions was assessed. Young mice provided with oral supplements (daily for 28 days) of E. faecium and L. rhamnosus exhibited diminished oxidative markers in the brain and enhanced activities of antioxidant enzymes with a concomitant increase in c-aminobutyric acid and dopamine levels. Collectively, our findings clearly suggest the propensity of these bacteria to protect against tissue damage mediated through free radicals and inflammatory cytokines. Although the underlying molecular mechanisms need further studies, it is tempting to speculate that probiotics confer a neuroprotective advantage in vivo against oxidative damage-mediated neurodegenerative conditions.

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Functionality of enterococci in dairy products

Cited by 594 publications

References 42 publications

Isolation and characterization of bacterial strains with a hydrolytic profile with potential use in bioconversion of agroindustial by-products and waste

Isolation and characterization of bacterial strains with a hydrolytic profile with potential use in bioconversion of agroindustial by-products and waste

Antibiotic resistance of enterococci, coagulase negative staphylococci and Staphylococcus aureus isolated from chicken meat

Probiotic attributes, antioxidant, anti-inflammatory and neuromodulatory effects of Enterococcus faecium CFR 3003: in vitro and in vivo evidence

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