CRM11994L

Listeria monocytogenes NCTC 11994 Lenticule^® discs

30-120 CFU, suitable for microbiology, certified reference material, Manufactured by: Sigma-Aldrich Production GmbH, Switzerland

• Sinônimo(s): L. monocytogenes NCTC 11994 Lenticule^® discs, Listeria monocytogenes NCTC 11994 Lenticule^® discs, Certified reference material, Microbiological standards
• Código UNSPSC: 41116107
• NACRES: NA.24

Propriedades

• grau: certified reference material
• Nível de qualidade: 300
• Agency: ISO 17034; ISO/IEC 17025
• forma: disc (hydrosoluble); solid
• prazo de validade: limited shelf life, expiry date on the label
• embalagem: pack of 10
• fabricante/nome comercial: Manufactured by: Sigma-Aldrich Production GmbH, Switzerland
• aplicação(ões): environmental; food and beverages; microbiology
• temperatura de armazenamento: −20°C
• adequação: Listeria monocytogenes; Listeria spp.

Descrição

Descrição geral

Listeria monocytogenes NCTC 11994 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 30-120 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.

Aplicação

Listeria monocytogenes NCTC 11994 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.

Características e benefícios

• Ready-to-use at convenient CFU ranges
• No dilution required
• Quick rehydration in 10 minutes
• At least 16-month shelf life in a standard -20 °C freezer
• Complete with a comprehensive certificate of analysis
• No maintenance of stock cultures
• No recovery time or pre-enrichment step is necessary
• Robust, efficient, and reliable
• Easy-to-use
• Cost-effective

Outras notas

Strain origin: NCTC 11994

Other cell culture collections:

• DSM 15675
• CECT^® 4032

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

Strain History - Accessioned into the NCTC in 1986 < P. N. Pini (Food Hygine Laboratory, Central Public Health Laboratory, Colindale, London, UK). Isolated from soft cheese, UK, in 1986-85.

Informações legais

CECT is a registered trademark of Universitat de Valencia

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

Informações de segurança

• Código de classe de armazenamento: 11 - Combustible Solids
• Classe de risco de água (WGK): WGK 3