Escherichia coli NCTC 9001 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 500-50000 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 to maintain control strains in the test laboratory ａnd guarantee 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). They are manufactured by Sigma-Aldrich under license from UK Health Security Agency.

Escherichia coli NCTC 9001 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 use in research studies ａnd educational purposes.

Strain origin: NCTC 9001

Other cell culture collections:

DSM 30083

ATCC^® 11775

CECT 515
Click here to access the BacDive database for more info on metabolism, genome, growth media, ａnd more

Strain History - Accessioned into the NCTC in 1952 < Dr F. Kauffmann (Statens Seruminstitut, Copenhagen, Denmark). Isolated from human urine (case of cystitis), geographic origin unknown, before 1953.

ATCC is a registered trademark of American Type Culture Collection

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