Intended Use
For the isolation of Listeria spp. from food and environmental specimens.
Principle and Interpretation
Tryptone, proteose peptone, meat extract, yeast paste powder provide nitrogen sources, vitamins, amino acids, and growth factors; sodium chloride can maintain a balanced osmotic pressure; sodium dihydrogen phosphate and potassium dihydrogen phosphate as buffering agents; aesculin are fermentable sugars; lithium chloride and other antibiotics can inhibit Gram negative bacteria and most Gram positive bacteria.
Formulation
| Ingredients | /liter |
| Enzymatic Digest of Animal Tissues | 5.0g |
| Enzymatic Digest of Casein | 5.0g |
| Meat extract | 5.0g |
| Yeast extract | 5.0g |
| Sodium chloride | 20.0g |
| Disodium hydrogen phosphate dihydrate | 12.0g |
| Potassium dihydrogen phosphate | 1.35g |
| Aesculin | 1.0g |
| Lithium chloride | 3.0g |
| pH7.2±0.2 at 25°C | |
Preparation
Dissolve 57.4g in 1 litre of distilled water. Mix well and distribute into final containers. Sterilize by autoclaving at 121°C for 15 minutes. Then cool to 50°C，and add one Supplement(SR0120) per 225mL of base to prepare Half-Fraser Broth.
Quality Control
Cultural characteristics observed after incubation at 29-31°C for 22~26 hours
| Quality control strains | Growth | Characteristics |
| Listeria monocytogenes ATCC19115 | >20 cfu On PALCAM | Gray to black colony count with black halo |
| Escherichia coli ATCC25922 | < 100 colonies on TSA | Inhibition |
| Enterococcus faecalis ATCC29212 |
Storage and Shelf Life
2-30℃，Keep container tightly closed, avoid direct sunlight.
Use before expiry date on the label.
Precautions
1. When weighing the dehydrated medium, please wear masks to avoid causing respiratory system discomfort
2. Keep container tightly closed after using to prevent clumping.
Waste Disposal
Microbiological contamination was disposed by autoclaving at 121°C for 30 minutes.
Intended Use For the isolation of Listeria spp. from food and environmental specimens. Principle and Interpretation Tryptone, proteose peptone, meat extract, yeast paste powder provide nit……
This product provides fast and easy methods for purification of total DNA for reliable PCR and Southern blotting. Total DNA(e.g., genomic, viral, mitochondrial) can be purified from small volume of blood, tissue and dry blood spots.
Specifications
| Features | Specifications |
| Main Functions | Isolation total DNA from 1-10μl blood, <10mg tissue, urine, blood stain, seminal stain |
| Applications | PCR, southern bolt and virus detection, etc. |
| Purification method | Mini spin column |
| Purification technology | Silica technology |
| Process method | Manual (centrifugation or vacuum) |
| Sample type | Animal tissues, blood stain, urine, seminal stain and various forensic samples |
| Sample amount | Blood:1-100μl, Tissue:<10mg |
| Elution volume | |
| Time per run | |
| Liquid carrying volume per column | |
| Binding yield of column |
This product is based on silica Column purification. The sample is lysed and digested with lysate and protease, DNA is released into the lysate. Transfer to an adsorption column. Nucleic acid is adsorbed on the membrane, while protein is not adsorbed and is removed with filtration. After washing proteins and other impurities, nucleic acid was finally eluted with low-salt buffer (10mmTris, pH9.0, 0.5mm EDTA).
Kit Contents
| Contents | D312502 | D312503 |
| Purification Times | 50 Preps | 250 Preps |
| Buffer ATL | 15 ml | 60 ml |
| Buffer AL | 15 ml | 60 ml |
| Buffer GW1* | 22 ml | 66 ml |
| Buffer GW2* | 20 ml | 2 x 50 ml |
| Carrier RNA | 310 μg | 2 x 310 µg |
| Proteinase K | 24 mg | 120 mg |
| Protease Dissolve Buffer | 1.8 ml | 10 ml |
| Buffer AE | 15 ml | 60 ml |
| HiPure DNA Mini Columns I | 50 | 2 x 125 |
| 2 ml Collection Tubes | 100 | 5 x 100 |
Storage and Stability
Carrier RNA and Proteinase K should be stored at 2–8°C upon arrival. However, short-term storage (up to 12 weeks) at room temperature (15–25°C) does not affect its performance. The remaining kit components can be stored dry at room temperature (15–25°C) and are stable for at least 18 months under theseconditions.
Experiment Data
This product provides fast and easy methods for purification of total DNA for reliable PCR and Southern blotting. Total DNA(e.g., genomic, viral, mitochondrial) can be purified from small volume of blood, tissue and dry blood spots.
endo-BCN-PEG3-Boc-amine is a click chemistry linker containing a Boc-protected amine. The protected amine can be deprotected under mild acidic conditions. The BCN group enable copper free click chemistry with azide-tagged molecules. Reagent grade, for research purpose. Please contact us for GMP-grade inquiries.
endo-BCN-PEG3-Boc-amine is a click chemistry linker containing a Boc-protected amine. The protected amine can be deprotected under mild acidic conditions. The BCN group enable copper free click chemistry with azide-tagged molecules. Reagent grade, for research purpose. Please contact us for GMP-grade inquiries.