VT000217

Listeria monocytogenes serovar 4b WDCM 00021 Vitroids

50,000-150,000 CFU mean value range, certified reference material, suitable for microbiology, Manufactured by: Sigma-Aldrich Production GmbH, Switzerland

• Synonym(s): L. monocytogenes WDCM 00021 Vitroids, Listeria monocytogenes serovar 4b WDCM 00021 Vitroids, Certified reference material, Microbiological standards
• UNSPSC Code: 41116107
• NACRES: NA.24

Properties

• grade: certified reference material
• Quality Level: 300
• Agency: ISO 17034; ISO/IEC 17025
• form: solid
• shelf life: limited shelf life, expiry date on the label
• packaging: pack of 10 discs
• manufacturer/tradename: Manufactured by: Sigma-Aldrich Production GmbH, Switzerland
• application(s): microbiology
• storage temp.: −20°C
• suitability: Listeria monocytogenes; Listeria spp.

Description

General description

Listeria monocytogenes serovar 4b WDCM 00021 Vitroids 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 50,000-150,000 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 CECT^®. 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. Vitroids are derived from a traceable culture obtained freeze-dried from CECT^®.

Application

Listeria monocytogenes serovar 4b WDCM 00021 Vitroids 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.

Features and Benefits

• Ready-to-use at convenient CFU ranges
• No dilution required
• Quick rehydration in 10 minutes
• 2-3 years of 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

Other Notes

Strain origin: CECT^® 935

Strain History: < CIP, 1959 < H. Seeliger

Other cell culture collections:

• DSM 27575
• ATCC^® 13932
• NCTC 10527

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

Legal Information

Derived from CECT^® strains

ATCC is a registered trademark of American Type Culture Collection

CECT is a registered trademark of Universitat de Valencia

Safety Information

• Storage Class Code: 11 - Combustible Solids
• WGK: WGK 3