Impact of bacterial genomics on determining quality and safety in the dairy production chain

Marco, Maria L.; Wells-Bennik, M.H.J.

doi:10.1016/j.idairyj.2007.11.017

Cited by 15 publications

(5 citation statements)

References 114 publications

(120 reference statements)

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“…As for E. coli and coliforms, although present in the milk samples, their levels were acceptable. These findings although not the main scope of this study, indicate a possible health risk because S. aureus may produce a heat stable toxin in raw milk [35,36]. Furthermore, S. aureus has been known to be the most prevalent pathogen to cause intramammary infections in dairy ruminants leading to major economic losses [37,38].…”

Section: Microbiological Analysis Of Milk Samplesmentioning

confidence: 77%

Quantification of Antibiotic Residues and Determination of Antimicrobial Resistance Profiles of Microorganisms Isolated from Bovine Milk in Lebanon

Zeina¹,

Pamela²,

Fawwak³

2013

FNS

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The rapid growth of dairy sectors in the Middle East, particularly in Lebanon, led to extensive use of antibiotics to enhance the health and productivity of animals. Prolonged usage may lead to antibiotic residues in foods of animal origin; hence, the emergence of antimicrobial resistant microorganisms. Accurate data on the antibiotic usage in livestock treatment, antibiotic residues and antimicrobial resistances in raw milk in Lebanon are lacking. This study aimed to investigate the types and usages of antibiotics in cattle, their residual levels and the potential microbial resistances in raw milk samples. A questionnaire-based survey identified Gentamicin and Streptomycin as the most frequently used antibiotics. Selected raw milk samples from main dairy farms were then analyzed in duplicate by quantitative ELISA for the antibiotics residual levels. The mean residual levels of Gentamicin and Streptomycin were 90 and 80 μg/L, respectively; which are below the allowable maximum residue limit of 200 μg/L as set by the FAO/WHO. Staphylococcus aureus, Listeria monocytogenes, E. coli and total aerobic microorganisms isolated from the milk samples were then tested for resistance against Gentamicin and Streptomycin by the disc agar diffusion method. All the S. aureus, E. coli, and L. monocytogenes isolates showed high resistance to Gentamicin. However, 95% of S. aureus, 60% of E. coli and 58% of L. monocytogenes isolates were resistant to Streptomycin. The obtained results provide evidence that antimicrobial resistant strains of the above pathogens have become remarkably widespread in raw milk. This requires better management for antibiotic usages among livestock farmers to control sources of food contamination and reduce the health risks associated with the development of resistant microbial strains.

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Section: Microbiological Analysis Of Milk Samplesmentioning

confidence: 77%

Quantification of Antibiotic Residues and Determination of Antimicrobial Resistance Profiles of Microorganisms Isolated from Bovine Milk in Lebanon

Zeina¹,

Pamela²,

Fawwak³

2013

FNS

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“…It has been implicated, however, as an important vehicle for pathogens in humans (30). Microorganisms that may be present in raw cow's milk include Campylobacter jejuni, Shiga toxinproducing Escherichia coli, Listeria monocytogenes, Citrobacter spp., Klebsiella spp., Enterobacter spp., Pseudomonas spp., Serratia spp., Salmonella spp., Salmonella enterica serovar Typhimurium, and Y. enterocolitica (17,20).…”

Section: Discussionmentioning

confidence: 99%

Prevalence of Yersinia enterocolitica in Raw Cow's Milk Collected from Stables of Mexico City

Bernardino-Varo

Quiñones-Ramírez

Fernandez

et al. 2013

Journal of Food Protection

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Yersinia enterocolitica has been isolated from a batch of pork-derived products, from healthy and diseased animals, and from different types of milk and dairy products, among others. We studied the prevalence and diversity of Y. enterocolitica isolated from raw cow's milk collected from stables in Mexico City. Of the 1,300 samples analyzed, Y. enterocolitica was isolated in 454, with an average of 25% positive samples for each stable. Of the total isolated bacteria of the Yersinia genus, 44.25% were Y. enterocolitica, 18.28% were Y. kristensenii, 13.65% were Y. intermedia, 14.85% were Y. frederiksenii, and 9.14% were Y. aldovae. Among the different strains of Y. enterocolitica, biotype 1A was present in 70%, biotype 2 in 13.2%, biotype 3 in 8.54%, and biotype 4 in 8.15% of samples. Serotypes O:5, O:3, O:2, and O:9 were found in all biotypes identified. There were no statistically significant differences in the isolation of this bacterium with respect to the stables where they were found, although there was significant difference regarding the time of year. The data obtained in this work show the need to protect public health in Mexico against infections transmitted by raw cow's milk.

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“…Milking process as well as milk handling procedures play an important role in the contamination of raw milk [46]. Many pathogens as E. coli, Salmonella, Pseudomonas, Klebsiella, Y. enterocolitica could contaminate milk [47] and subsequently affecting its quality.…”

Section: Disscusionmentioning

confidence: 99%

Incidence of Yersinia enterocolitica in raw farm and market milk sample

EL-Toukhy

El-Sayed

Shoeib

2021

Mansoura Veterinary Medical Journal

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Impact of bacterial genomics on determining quality and safety in the dairy production chain

Cited by 15 publications

References 114 publications

Quantification of Antibiotic Residues and Determination of Antimicrobial Resistance Profiles of Microorganisms Isolated from Bovine Milk in Lebanon

Quantification of Antibiotic Residues and Determination of Antimicrobial Resistance Profiles of Microorganisms Isolated from Bovine Milk in Lebanon

Prevalence of Yersinia enterocolitica in Raw Cow's Milk Collected from Stables of Mexico City

Incidence of Yersinia enterocolitica in raw farm and market milk sample

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