DBCO-C2-alcohol is a linker containing a DBCO moiety and a terminal primary hydroxyl group. DBCO group can react with azides in copper-free Click Chemistry reactions. The hydroxyl can react with a variety of functional groups. Reagent grade, for research purpose. Please contact us for GMP-grade inquiries.
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DBCO-C2-alcohol is a linker containing a DBCO moiety and a terminal primary hydroxyl group. DBCO group can react with azides in copper-free Click Chemistry reactions. The hydroxyl can react with a variety of functional groups. Reagent grade, for research purpose. Please contact us for GMP-grade inquiries.
For pre-enrichment of Salmonella spp.
Principle:
Peptone provide carbon and nitrogen sources to meet the needs of bacterial growth; sodium chloride maintains osmotic equilibrium; potassium dihydrogen phosphate and disodium hydrogen phosphate as buffer.
Formulation(per liter):
Peptone: 10g
Sodium chloride:5g
Disodium hydrogen phosphate:3.5g
Potassium dihydrogen phosphate: 1.5g
Final pH7.2 ± 0.2
How to use:
1. Suspend 20g of product, adding 1L of distilled or deionized water, heated to boiling stirring until completely dissolved, dispensing into flask, autoclave at 121 ℃ for 15min, set aside.
2.Diluted and treated samples.
Quality control：
| Item | The name and number of strain | Growth | Colony Color |
| 1 | Salmonella typhi CMCC (B) 50071 | good | Cloudy broth |
| 2 | Salmonella typhimurium CMCC (B) 50115 | good | Cloudy broth |
| 3 | Paratyphoid Salmonella CMCC (B) 50093 | good | Cloudy broth |
Storage: Keep container tightly closed, store in a cool, dry place, away from bright light. Storage period of 3 years.
Specifications: 250g/bottle; 225ml*10bag/box
Reference:
1.GB/T4789.4-2003 People’s Republic of China national standards of food hygiene Examination of Salmonella microorganisms
2.GB/T4789.28-2003 People’s Republic of China national standards of food hygiene microbiological examination Staining, media and reagents
3.SN0170-92 People’s Republic of China Import and Export Commodity Inspection industry standard Salmonella food for export (including Arizona bacteria) test method
4.GB/T4789.4-2008 People’s Republic of China national standards of food hygiene Examination of Salmonella microorganisms
5.GB 4789.4-2010 national standards for food safety standards of food hygiene inspection and microbiological testing of salmonella People’s Republic of China
6.GB 13091-91 People’s Republic of China National Standard Test Method for Salmonella in feed
7.GB 4789.40-2010 national standards for food safety standards of food hygiene inspection microorganism People’s Republic of China E.sakazakii test
8. ISO 6579-2002 Microbiology of food and animal feeding stuffs —– Horizontal method for the detection of Salmonella spp.
9. ISO22964-2006 Milk and milk products —– Detection of Enterobacter sakazakii
10. ISO6785-2001 Milk and milk products —– Detection of Salmonella spp
250g
Norgen’s Fecal Swab Collection and Preservation System is designed for collection, ambient storage and transport of nucleic acids from stool specimens. The Fecal Swab Collection and Preservation System tubes contain Norgen’s Stool Preservative in a liquid format. The user simply collects the specimen using the provided swab, and then transfers the swab into the Stool Preservative. The Stool Preservative prevents the growth of Gram-negative and Gram-positive bacteria and fungi, and also inactivates viruses allowing the resulting non-infectious samples to be handled and shipped safely. In addition, the Stool Preservative eliminates the need to immediately process or freeze samples and allows the samples to be shipped to centralized testing facilities at ambient temperatures. The components of the Stool Preservative allow samples to be stored at room temperature for over 2 years for DNA and 7 days for RNA. To extend the stool RNA stability in the preservative, storage at -20°C or -70°C is recommended upon arrival at the testing facilities until RNA purification.
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| Kit Specifications | |
| Stability of Stool Nucleic Acids at Room Temperature | 2 years for DNA Up to 7 days for RNA* |
* The RNA stability will vary depending on the samples
Storage Conditions and Product Stability
The Fecal Swab Collection and Preservation System (Bulk Format) can be stored at room temperature for up to 2 years without any reduction in kit performance. The expiry date for the swabs is written on the swab wrapper.
| Kit Components | Cat. 45670-B |
|---|---|
| Individually Wrapped Swabs | 50 |
| Fecal Swab Collection and Preservation Tube | 50 |
| Product Insert | 1 |
K-CERA
SKU: 700004273
100 assays per kit
| Content: | 100 assays per kit |
| Shipping Temperature: | Ambient |
| Storage Temperature: | Short term stability: 2-8oC, Long term stability: See individual component labels |
| Stability: | > 2 years under recommended storage conditions |
| Analyte: | α-Amylase |
| Assay Format: | Spectrophotometer, Auto-analyser |
| Detection Method: | Absorbance |
| Wavelength (nm): | 400 |
| Signal Response: | Increase |
| Limit of Detection: | 0.003 U/g |
| Reproducibility (%): | ~ 3% |
| Total Assay Time: | ~ 30 min |
| Application examples: | Cereal flours, fermentation broths and other materials. |
| Method recognition: | AACC Method 22-02.01, AOAC Method 2002.01, ICC Standard No. 303, RACI Standard Method and CCFRA (Flour Testing Working Group Method 0018) |
The Ceralpha Method: α-Amylase test kit is suitable for the specific measurement and analysis of α-amylase in cereal grains and fermentation broths (fungal and bacterial).
Browse the complete list of our enzyme activity assay kits.
Advantages
Validation of Methods
The Ceralpha Method: α-Amylase test kit is suitable for the specific measurement and analysis of α-amylase in cereal grains and fermentation broths (fungal and bacterial).
