For the enumeration of enterococci in water and other liquids by the membrane filtration technique.
Principle and Interpretation
The growth of the entire accompanying Gram-negative microbial flora is inhibited by sodium azide. Enterococci reduce 2,3,5-Triphenyl tetrazolium chloride (TTC) to give a red formazan inside the bacterial cell, their colonies are thus red. Nitrogen, minerals, and amino acids are provided by the tryptose whilst yeast extract supplies vitamins. Glucose acts as the carbon source, dipotassium phosphate buffers the medium, and agar-agar is the solidifying agent.
Formulation
Ingredients
/liter
Tryptose
20.0g
Yeast extract
5.0g
Glucose
2.0g
Disodium hydrogen phosphate
4.0g
Sodium azide
0.4g
2,3,5-Triphenyl Tetrazolium chloride
0.1g
Agar
10.0g
pH 7.2±0.1 at 25°C
Preparation
Dissolve 41.5 g in 1 L of purified water. Heat in boiling water and agitate frequently until completely dissolved. Sterilize by further heat for 20 minutes in the boiling water bath.
Quality Control
Cultural characteristics observed after incubation at 34-38°C for 40-48hours
Quality control strains
Growth
Colony color
Enterococcus faecalis ATCC29212
Good growth,PR≥0.5
deep red coloured colonies
Escherichia coli ATCC25922
Total inhibition
–
Sorage and Shelf Life
Keep container tightly closed, store in a cool, dry place, away from bright light. Storage period of 3 years.
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.
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Intended Use For the enumeration of enterococci in water and other liquids by the membrane filtration technique. Principle and Interpretation The growth of the entire accompanying Gram-neg……
The Kit is specially designed for simultaneous purification of genomic DNA and total RNA from formalin-fixed, paraffin-embedded (FFPE) tissue sections. Purified DNA/RNA is suitable for use in applications such as real-time PCR and Pyrosequencing.
Details
Specifications
Features
Specifications
Main FunctionsC
Co-isolation total RNA and DNA from FFPE tissue
Applications
RT-PCR, cDNA synthesis, PCR and second-generation sequencing, etc.
Purification method
Polydisperse magnetic beads
Purification technology
Magnetic beads technology
Process method
Manual or automatic
Adaptive instrument
Nucleic acid extractor and pipetting workstation
Sample type
FFPE slice, FFPE puncture sample, embedded tissue
Sample amount
No more than six 10µm sections of 150 mm2 surface area or three 20µm sections of 150 mm2 surface area.
Principle
FFPE samples are incubated in an optimized lysis buffer, which results in the release of RNA and precipitation of DNA. After centrifugation, the RNA-containing supernatant and DNA-containing pellet are then processed separately to purify RNA and DNA. After adding magnetic particles and binding solution, DNA/RNA will be adsorbed on the surface of magnetic particles, and impurities such as proteins will be removed without adsorption. The adsorbed particles were washed with washing solution to remove proteins and impurities, washed with ethanol to remove salts, and finally DNA/RNA was eluted by RNase Free Water.
Advantages
Post digestion sorting – higher DNA and RNA yields
Economy – the price is much lower than imported reagents
Kit Contents
Contents
IVD3026
Purification Times
200 Preps
MagBind Particles
9.0 ml
Proteinase K
180 mg
Protease Dissolve Buffer
10 ml
Buffer DPS
150 ml
Buffer FRL
40 ml
Buffer ATL
40 ml
Buffer AL
80 ml
Buffer BXW1*
110 ml
RNase Free Water
30 ml
Storage and Stability
Proteinase K and MagBind Particles should be stored at 2-8°C upon arrival. However, short-term storage (up to 24 weeks) at room temperature (15-25°C) does not affect their performance. The remaining kit components can be stored at room temperature (15-25°C) and are stable for at least 18 months under these conditions.
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The Kit is specially designed for simultaneous purification of genomic DNA and total RNA from formalin-fixed, paraffin-embedded (FFPE) tissue sections. Purified DNA/RNA is suitable for use in applications such as real-time PCR and Pyrosequencing.
Our SNPsig® kits use our own proprietary genotyping method to enable the identification of SARS-CoV-2 variants of concern. These products can be used on any real-time PCR machine using familiar protocols, whilst resulting in exceptional genotyping data.
Positive control templates for wild-type and variants are supplied in every kit to make data interpretation simple.
Our SNPsig® technology provides an alternative to sequencing as well as S gene target failure (SGTF) that enables scientists to analyse and monitor these specific genomic mutations. Our kits can provide a pivotal role in screening for SARS-CoV-2 variants for the purpose of genomic surveillance and studies.
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For the detection of the SARS-CoV-2 variants with the L452R mutation
Rapid detection of specific detection profiles
High priming efficiency
Sensitive to < 100 copies of target
Positive copy number standard curve for quantification
Accurate controls to confirm findings
96 reactions, includes master mix
