VTM Virus Transport Media Sterile Medium Dna Sampling Preservation Solution

Factory sale VTM virus transport media sterile transport medium Preservation Solution dna sampling preservation solution

Selection of virus preservation solution and control of mold

Virus detection is different from conventional biochemical detection. The virus itself is a simple microorganism that must be parasitic in living cells. After sampling, the virus leaves the host cell, and its protein shell and nucleic acid are quickly degraded in the sampling tube. Therefore, it is impossible to determine whether the initially collected sample contains virus during the nucleic acid test, and it is easy to cause false negatives.

virus transport media solution

Therefore, we must use the virus preservation solution to prevent the degradation of the virus; at the same time, we must prevent the phenomenon of mold growth in the virus preservation solution.

1. Inactivated virus preservation solution
The current nucleic acid detection is to detect the viral RNA in the sample, and the virus needs to be lysed. Therefore, as long as the integrity and stability of the viral nucleic acid can be ensured, there is no need to preserve the live virus. Its advantage is that it can not only lyse and inactivate the virus protein of the sample to be tested quickly and efficiently, but also can effectively prevent infection. At the same time, it contains Rnase enzyme inhibitor, which can protect the virus nucleic acid from being degraded. The follow-up NT-PCR experiment only needs to be able to The diagnosis can be made when the nucleic acid of the virus is detected. And it can be stored for a relatively long time at room temperature.

2. Non-inactivated preservation solution
It is a preservation solution that retains the protein coat of the virus and the DNA or RNA of the viral nucleic acid at the same time, so that the virus has the integrity of the protein epitope and nucleic acid in vitro. Of course, there is a certain risk of infectivity when operating errors. Long-term storage after sampling needs to keep strictly low temperature.
3. Whether there is mold growth
Many non-inactivated virus preservation solutions on the market now have bacteria growth. Professional manufacturers have strictly controlled the colonies, so this problem generally does not occur.