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Occurence of antibiotic resistant bacteria in raw cow milk from vending machines

Abstract

The prevalence of antibiotic resistant coliform bacteria and enterococci in fresh raw cow milk obtained from four vending machines in Slovakia was assessed. Also, differences in the number of antibiotic-resistant bacteria in milk according to season (winter and summer) were compared. Number of total coliform bacteria ranged from 2.45 to 4.18 log CFU/mL. Majority of them were resistant to ampicillin. This was expected due to their intrinsic resistance apart from Escherichia coli which is sensitive to ampicillin. In addition, we observed also tetracycline and gentamicin resistance. Each of our samples contained E.coli. Number of total enterococci ranged from 1.95 to 3.78 log CFU/mL. We have observed predominantly vancomycin resistance in all tested samples. In samples taken during winter we have found higher number of total and resistant coliforms as well as total enterococci compared to those taken during summer.

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Sewage sludge as a source of triclosan-resistant bacteria

Abbreviations AMP — ampicillin ATB — antibiotics CFU — colony forming units CIP — ciprofloxacin CLSI — Clinical Laboratory Standards Institute CMP — chloramphenicol EQ — equivalent inhabitants EU — European Union EUCAST — European Committee on Antimicrobial Susceptibility Testing GEN — gentamicin MALDI-TOF — Matrix–Assisted Laser Desorption/Ionization–Time of Flight MDR — multidrug-resistance MIC — minimal inhibitory concentration QAC — quaternary ammonium compounds TET — tetracycline WWTP — wastewater treatment

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Flavonoids – Small Molecules, High Hopes

.; Shiota, S.; Kuroda, T.; Hatano, T.; Yoshida, T.; Mizushima, T.; Tsuchiya, T. Remarkable synergies between baicalein and tetracycline, and baicalein and beta-lactams against methicillin-resistant Staphylococcus aureus. Microbiol. Immunol. 2005, 49, 391-396. 35. Bahrin, L. G.; Apostu, M. O.; Birsa, L. M.; Stefan, M. The antibacterial properties of sulfur containing flavonoids. Bioorg. Med. Chem. Lett. 2014, 24, 2315-2318. 36. Bahrin, L. G.; Sarbu, L. G.; Hopf, H.; Jones, P. G.; Babii, C.; Stefan, M.; Birsa, L. M. The influence of halogen

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Escherichia coli as Possible Agents of Spread of Multidrug Resistance in Port Harcourt, Rivers State.

.A., and Schwarz, S., 2003. Structural analysis of the tetracycline resistance gene region of a small multiresistance plasmid from uropathogenic Escherichia coli isolated in Nigeria. J Antimicrob Chemother., 52(6), 1043-1044. Ojo, K.K., Kehrenberg. C., Odelola. H.A., Schwarz. S., and Roberts, M.C., 2006. Tetracycline resistant plasmids from uropathogenic Escherichia coli from southwestern Nigeria. J Antimicrob Chemother., 18(1), 112-114. Ojo, S.K., Sargin, B.O., and Esumeh, F.I., 2014. Plasmid Curing Analysis of Antibiotic Resistance in beta

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Polycyclic aromatic hydrocarbons removal from produced water by electrochemical process optimization

. Hydrolytic reactions in hydrated iridium chloride coatings. J Electroanal Chem. 1997;434:99-104. DOI: 10.1016/S0022-0728(96)05068-1. [14] Miyata M, Ihara I, Yoshid G, Toyod K, Umetsu K. Electrochemical oxidation of tetracycline antibiotics using a Ti/IrO 2 anode for wastewater treatment of animal husbandry. Water Sci Technol. 2011;63(3):456-461. DOI: 10.2166/wst.2011.243. [15] Wang Y, Li M, Feng C, Zhang Z. Electrochemical oxidation of sulfide in oil wastewater using Ti/IrO 2 anode. Environ Prog Sust Energy. 2012;31(4):500-506. DOI 10.1002/ep.10565. [16

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Comparison of Tandem Quadrupole Mass Spectrometry and Orbitrap High Resolution Mass Spectrometry for Analysis of Pharmaceutical Residues in Biota Samples

Interpretation of Results”, Official Journal of the European Union, 2002, L221, pp. 8-36. [20] QuoData, InterVal software 3.00. [CD-ROM]. QuoData, 2014. [21] G. Siedlewicz, K. Pazdro, M. Borecka, K. Kornowska, A. Białk-Bielińska, P. Stepnowski, “Determination of Tetracyclines Residues in the Gulf of Gdańsk (Southern Baltic Sea) Sediments Using a Tandem Solid-Phase Extraction with Liquid Chromatography Coupled with Tandem Mass Spectrometry”, Insights on Environmental Changes pp. 33-48. Springer International Publishing. http://dx.doi.org/10

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Major Advances and Challenges in Heterogeneous Catalysis for Environmental Applications: A Review

, Hapgood K, Zhang X, Wang H. TiO 2 based photocatalytic membranes: A review. J Memb Sci. 2014;472:167-184. DOI: 10.1016/j.memsci.2014.08.016. [110] Wang W, Fang J, Shao S, Lai M, Lu C. Compact and uniform TiO 2 @g-C 3 N 4 core-shell quantum heterojunction for photocatalytic degradation of tetracycline antibiotics. Appl Catal B Environ. 2017;217:57-64. DOI: 10.1016/j.apcatb.2017.05.037. [111] Wang J, Yang Z, Gao X, Yao W, Wei W, Chen X, et al. Core-shell g-C 3 N 4 @ZnO composites as photoanodes with double synergistic effects for enhanced visible

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Fate and Removal of Pharmaceuticals and Illegal Drugs Present in Drinking Water and Wastewater

sorption-phytocatalysis-nanofiltration system. Annual Environ Protect. 2013;15:1929-1936. [33] Daghrir R, Drogui P. Tetracycline antibiotics in the environment: a review. Environ Chem Lett. 2013;11:209-227. DOI: 10.1007/s10311-013-0404-8. [34] He X, Wang Z, Nie X, Yang Y, Pan D, Leung AO, Cheng Z. Residues of fluoroquinolones in marine aquaculture environment of the Pearl River Delta, South China. Environ Geochem Health. 2012;34:323-335. DOI: 10.1007/s10653-011-9420-4. [35] Kasprzyk-Hordern B, Dinsdale RM, Guwy AJ. The

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