Thermo Scientific™ Culti-Loops™ Enterococcus faecalis ATCC™ 33186™
Confidently carry out testing of media, reagents, and identification & antimicrobial susceptibility kits and evaluate bacteriological procedures with ready-to-use Thermo Scientific™ Culti-Loops™ QC organisms.
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Enterococcus faecalis™ ATCC™ 33186™ can be used to assess Mueller-Hinton medium suitability for sulfonamide and trimethoprim testing.
Mueller-Hinton agar or broth medium containing excessive amounts of thymidine or thymine can reverse the inhibitory effect of sulfonamides and trimethoprim, which may result in smaller and less distinct disc diffusion zones and false-resistance reports.
With broth microdilution MIC testing, suitability of Mueller-Hinton broth for sulfonamide & trimethoprim tests can be evaluated by reviewing ease of reading the results: the end points should be clear at 80% or greater reduction in growth compared to the control.
Technique:
The loop can be streaked directly onto appropriate media.
Alternatively, it may be dissolved in a liquid medium, Culti-Loops Aerobic Set Rehydration Fluid, Part No. R4631000.
Includes:
Culti-Loops are individually sealed in a foil pouch and packaged five loops per package.
Quality matters: Stock culture maintenance protocol
Quality control organisms are a fundamental part of any quality assessment program for microbiology laboratories. Proper maintenance of these organisms is critical to achieving accurate control results for culture media and reagents.
In this application note, Thermo Fisher Scientific highlights industry guidelines and best practices to ensure compliance to various standards, at the same time as making optimum use of materials.
Ensuring detection of novel antimicrobial resistant strains
Carbapenemase-producing strains continue to strive and develop various mechanisms of antimicrobial resistance. Incorporating resistant strains into routine Quality Control testing processes ensures antimicrobial susceptibility testing solutions can recognize different resistance patterns.
In this application note, learn more about Carbapenem-resistant strains and explore Thermo Scientific’s full Culti-Loops portfolio of QC strains for antimicrobial susceptibility testing following CLSI and EUCAST recommendations.
