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VT000213

Millipore

Listeria monocytogenes serovar 4b WDCM 00021 Vitroids

80-130 CFU mean value range, certified reference material, suitable for microbiology, Manufactured by: Sigma-Aldrich Production GmbH, Switzerland

Synonym(s):

Certified reference material, Microbiological standards, Listeria WDCM 00021 Vitroids

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About This Item

UNSPSC Code:
41116107
NACRES:
NA.24

grade

certified reference material

Quality Level

agency

ISO 17034
ISO/IEC 17025

form

solid

shelf life

limited shelf life, expiry date on the label

packaging

package of 10 discs

manufacturer/tradename

Manufactured by: Sigma-Aldrich Production GmbH, Switzerland

application(s)

environmental
food and beverages

microbiology

storage temp.

−20°C

suitability

Listeria monocytogenes
Listeria spp.

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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 80-130 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 use in 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

Other cell culture collections:

  • DSM 27575
  • ATCC® 13932
  • NCTC 10527
Click here to access BacDive database for more info on metabolism, genome, growth media and more
Strain History: < CIP, 1959 < H. Seeliger

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
Vitroids is a trademark of Merck KGaA, Darmstadt, Germany

Storage Class

11 - Combustible Solids

wgk_germany

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable


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