Enterococcus faecalis NCTC 775 Lenticule^® discs are Certified Microorganisms Standards (Certified Microbiological Reference Materials) which can be used as quantitative and qualitative control organisms. They contain colony forming units (CFUs) in the range of >100000 CFU per disc. The technology allows long-term conservation and renders the organisms resistant to temperature changes. They are intended to be used as daily internal quality control organisms. These microorganisms are certified according to ISO/IEC 17025 and produced under reproducible conditions compliant with ISO 17034 using authenticated strains from NCTC. These ready-to-use microbiological controls minimize the need for maintaining control strains in the test laboratory and guarantee the use of an authenticated control culture for every quality control test. Lenticule^® discs are prepared from a traceable culture obtained freeze-dried from the National Collection of Type Cultures (NCTC) or National Collection of Pathogenic Fungi (NCPF) and are manufactured by Sigma-Aldrich under license from UK Health Security Agency.

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Enterococcus faecalis NCTC 775 Lenticule^® discs are used as reference strains in routine quality control for food, beverage, water, and environmental testing. Additionally, they are excellent for use in method development and validations, as starter cultures, and for research studies and educational purposes.

Strain origin: NCTC 775

Other cell culture collections:

• DSM 20478
• ATCC^® 19433
• CECT^® 481

Click here to access the BacDive database for more info on metabolism, genome, growth media, and more

Strain History - Accessioned into the NCTC in 1920 < Dr C. L. Hannay (National Institute for Research in Dairying, Shinfield, UK). Isolation substrate unknown, geographic orgin unknown, before 1921.

ATCC is a registered trademark of American Type Culture Collection

CECT is a registered trademark of Universitat de Valencia

Lenticule is a registered trademark of The Secretary of State for Health (United Kingdom)