CRM11994M
Listeria monocytogenes NCTC 11994 Lenticule® discs
500-50000 CFU, suitable for microbiology, certified reference material, Manufactured by: Sigma-Aldrich Production GmbH, Switzerland
别名:
Microbiological standards, Certified reference material, Listeria NCTC 11994 Lenticule® discs
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About This Item
分類程式碼代碼:
41116107
NACRES:
NA.24
推荐产品
等級
certified reference material
品質等級
agency
ISO 17034
ISO/IEC 17025
形狀
disc (hydrosoluble)
solid
儲存期限
limited shelf life, expiry date on the label
包裝
package of 10 discs
製造商／商標名
Manufactured by: Sigma-Aldrich Production GmbH, Switzerland
雜質
500-50000 CFU
應用
environmental
food and beverages
microbiology
儲存溫度
−20°C
適合性
Listeria monocytogenes
Listeria spp.
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一般說明
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 500-50000 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). They are manufactured by Sigma-Aldrich under license from UK Health Security Agency.
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). They are manufactured by Sigma-Aldrich under license from UK Health Security Agency.
應用
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 use in research studies and educational purposes.
特點和優勢
- Ready-to-use at convenient CFU ranges
- No dilution required
- Quick rehydration in 10 minutes
- At least 16 months 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
其他說明
Strain origin: NCTC 11994
Other cell culture collections:
Other cell culture collections:
- DSM 15675
- CECT® 4032
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.
法律資訊
Strain derived from NCTC
CECT is a registered trademark of Universitat de Valencia
Lenticule is a registered trademark of The Secretary of State for Health (United Kingdom)
儲存類別代碼
11 - Combustible Solids
水污染物質分類（WGK）
WGK 3
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Medicinal chemistry (Shariqah (United Arab Emirates)), 12(1), 22-29 (2015-08-11)
Sucrose octa(N-ethyl)carbamate was synthesized directly from sucrose and ethyl isocyanate, and its structure was confirmed by various analytical methods, such as (1)H and (13)C NMR, FTIR, m.p., MS, and optical rotation. Its antibacterial, antifungal and cytotoxic activities were investigated. It
Krasimira T Petrova et al.
Carbohydrate research, 417, 66-71 (2015-10-04)
A library of 1-(1',2,3,3',4,4',6-hepta-O-acetyl-6'-deoxy-sucros-6'-yl)-1,2,3-triazoles have been investigated for their antibacterial, antifungal and cytotoxic activities. Most of the target compounds showed good inhibitory activity against a variety of clinically and food contaminant important microbial pathogens. In particular, 1-(1',2,3,3',4,4',6-hepta-O-acetyl-6'-deoxy-sucros-6'-yl)-4-(4-pentylphenyl)-1,2,3-triazole (5) was highly
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