Introduction

Usages:

For the rapid detection and enumeration of coliform bacteria.

Principle:

Peptone and yeast extract powder provides carbon and nitrogen sources and trace elements; sodium chloride maintains osmotic equilibrium; agar as medium coagulant; dodecyl sulfate inhibit Gram-positive bacteria; chromogenic substrate and large intestine flora β- galactosidase-glucosidase specific reaction, hydrolysis of the substrate, the release of the color groups  produce green colonies on the light yellow plate.

Formulation (per liter):

Peptone :10g

Yeast extract powder: 3g

sodium chloride:5g

sodium lauryl sulfate:0.1g

Agar :12g

Chromogenic substrate 2.7g

Final pH 7.0 ± 0.2

How to use:

1. Weigh 32.8g of this product, adding 1L of distilled or deionized water , heated to boiling stirring until completely dissolved, dispensing into flask without autoclaving.

2,Take 25g or 25mL of sample with aseptic procedures, added to the flask containing 225mL of sterile phosphate buffered saline (or saline) is shaken thoroughly homogenized with a homogenizer or a 1:10 dilution 1min, then 1:10 dilution continue to select the appropriate serial dilutions of three, two plates each dilution was inoculated.

3, the use of pour method: The medium is cooled in a water bath to about 50 , sterilized petri dish having a diameter 90mm, 1ml samples were inoculated per dish, then poured into about 15ml of the above dissolution medium, and mix to solidify, upside down, 37 for 24 hours.

4, using surface inoculation: cooled to about 50 , shake devoted to the medium in sterile petri dish. Can be stored in the refrigerator for a day or stored at room temperature for several days (dark, 4 ). The sample was streaked method or filter method, 37 for 24 hours.

5, observe the results.

Quality control:

This product appear light yellow after pouring into plate, these strains were inoculated after 36 ± 1 18 ~ 24h culture growth in the following table.

Growth of bacteria were cultured bacteria numbers feature

Escherichia coli ATCC25922 good green colonies

Citrobacter ATCC8090 good green colonies

Salmonella typhimurium CMCC50115 good colorless colonies

Enterococcus faecalis ATCC29212 suppressed —–

Storage: Store at 10-30 , dark, cool and dry place, tighten the cap immediately after use. Storage period of two years.

1000mL

Introduction

This product provides a fast and easy way to purify DNA from plant and fungal tissue. Up to 3g of tissue can be processed. Easy-to-use Plant procedures provide pure total DNA (genomic, mitochondrial, and chloroplast) for reliable PCR and southern blot in less than 1 hour.

Details

Specifications

Principle

This product is based on silica Column purification. Plant material is first mechanically disrupted and then lysed by addition of lysis buffer and incubation. RNase A in the lysis buffer digests the RNA in the sample. After lysis, proteins and polysaccharides are salt-precipitated. Binding buffer and ethanol are added to the cleared lysate to promote binding of the DNA to the HiPure membrane. The sample is then applied to a column and then centrifuged.DNA binds to the membrane, while contaminants such as proteins and polysaccharides are efficiently removed by 2 wash steps. Pure DNA is eluted in a small volume of low-salt buffer or water.

Advantages

• Broad spectrum – suitable for extracting DNA from various plant samples
• Fast – several samples can be extracted in 30 minutes by silica technology
• High purity – high quality DNA, completely remove inhibitors
• High yield – silica technology can achieve the highest yield

Kit Contents

Storage and Stability

RNase A 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 these conditions. The entire kit can be stored at 2-8°C, but in this case buffers should be redissolved before use. Make sure that all buffers are at room temperature when used.

Purchase Guide

This product provides a fast and easy way to purify DNA from plant and fungal tissue. Up to 3g of tissue can be processed. Easy-to-use Plant procedures provide pure total DNA (genomic, mitochondrial, and chloroplast) for reliable PCR and southern blot in less than 1 hour.

• DirectBlood Genotyping PCR Kit is a novelty on the market. It allows genotyping in real-time and without any previous DNA isolation. You simply save time and money: directly use EDTA blood without any extraction steps.
  The DirectBlood Genotyping PCR Kit is optimized to function with a wide range of different SNPs to detect possible nucleotide variations. It has been successfully tested with a variety of hydrolysis probes and hybridization probes.The setup of a genotyping experiment can not be simpler anymore: Mix primers&probes with the Genotying mastermix, add the respective blood sample and start real-time PCR, this is it. 
  
  It is even more simple: store the DirectBlood Genotyping PCR Kit at room-temperature. A cool chain is not needed anymore. The included master mix is freeze-dried and dissolves within a few seconds after addition of the rehydration buffer.Additionally, we have already established SNP-assays for you. In case, you can not find your respective SNPs, please provide us with the rs-number of the SNP-assays your are interested-in and you will receive an individual quotation from us.For research use and further manufacturing.In case you are aiming to use our RUO products as components or for your development of e.g. an IVD medical device, please contact us.

DirectBlood Genotyping Kit (#5000) performance with a hydrolysis probe assay

The DirectBlood Genotyping Kit is compatible with a wide range of assays: Here we are detecting a SNP in the Factor V gene (rs6025; G1691A), which is connected with a higher risk for venous thrombosis, with a fluorescent hydrolysis probe assay.

Homozygous wild type blood samples will show a strong signal and amplification plot (blue curve) in channel 2 (Cy5) and none or a very low signal

(red curve) in the other channel 1 (ROX).

Heterozygous blood samples will give an intermediate signal and amplification plots with very similar intensities in both channels 1 and 2 (blue and red curve).    Homozygous mutant blood samples, channel 1 (ROX) will show a strong signal and amplification plot (red curve) and channel 2 (Cy5) none or a very low signal and amplification plot (blue curve). So the signals are reversed on homozygous mutant samples.   

DirectBlood Genotyping Kit performance with a hybridization probe assay

Here we are detecting the same SNP in the Factor V gene (rs6025; G1691A), which is connected with a higher risk for venous thrombosis, with a fluorescent hybridization probe assay.

Three blood samples with known genotype were used. All the genotypes can clearly be identified. The blue curve shows the specific wild type (homozygous G;G) peak at 61°C. The red curve shows the specific mutant (homozygous A;A) peak at 53°C. A heterozygous case (A;G) will result in both melting curve peaks, respectively at the same specific temperature for wild type and mutant (orange curve).

DirectBlood Genotyping PCR Kit is a novelty on the market. It allows genotyping in real-time and without any previous DNA isolation. You simply save time and money: directly use EDTA blood without any extraction steps.
The DirectBlood Genotyping PCR Kit is optimized to function with a wide range of different SNPs to detect possible nucleotide variations. It has been successfully tested with a variety of hydrolysis probes and hybridization probes.