Microbiology Test
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FAQ

1. Q: How long is the valid period of the Medi·Ca culture medium plate?

A: 18 months, use within 3 months after opening.

2. Q: How many items does the Medi·Ca culture medium plate have?

A: AC: For the total number of colonies;

    EC: for the determination of Escherichia coli and coliforms;

    CC: for the measurement of coliforms;

    SA: for the determination of Staphylococcus Aureus.

3. ​Q: How can the Medi·Ca culture medium plate be stored after opening?

A: Seal the bag with tape and store it in a freezer at 2-8 degrees.

4. ​Q: What if a large number of bacterial colonies grow out of the Medi·Ca culture medium plate?

A: Increase the dilution.

5. Q: Why are there no bubbles in the EC culture medium plate?

A: EC culture medium plate uses the enzyme matrix which does not produce gas. Direct color determination can be used.

6. ​Q: Why does the SA culture medium plate grow a large sheet of pink?

A: The pink colony of the SA culture medium plate is miscellaneous fungus. The SA uses a selective medium and blue colony is SA colony.

7. Q: When the SA culture medium plate detects frozen aquatic products, there will still be Staphylococcus aureus growing after more than 24 hours.

A: Some bacteria in the frozen products belong to the damaged bacteria, and will develop after 24 hours.

8. ​Q: What is the difference between a DNP culture medium plate e and a 3M culture medium plate?

A: 3M test piece uses lactose decomposition, DNP uses enzyme matrix.

9. Q: What is the difference between the culture medium plate and the normal medium?

A: The culture medium plate uses a selective medium for the selection of specific bacteria.

10.​ Q: Can the culture medium plate be used for sedimentation bacteria?

A: Yes, the culture medium plate can be used for sedimentation bacteria after hydration.

11. Q: How many sizes of the blender bags are there?

A: 18*30cm of 400ml without filter mesh, 19*30cm of 400ml with filter mesh.

12.​ Q: What are the sizes of the sampling bag?

A: 23*10cm of 280ml, 23*14cm of 550ml.

13. Q: Is there any certification report for DNP culture medium plate?

A: The DNP culture medium plate has been certified by the international AOAC, which is much higher than the domestic certification standard.

14. Q: Whether is it false positive if the test results of the EC culture medium plate are higher than the normal medium?

A: The medium of the EC culture medium plate is the exclusive medium in Japan. The sensitivity is higher than the domestic medium, which is normal for the higher detection rate.

15. ​Q: Does the SA culture medium plate require a 3M confirmation plate?

A: The SA culture medium plate does not need to confirm the plate. It inhibits more bacteria than the 3M culture medium plate. The grown bacteria can be basically determined to be SA.

16. Q: Is the DNP culture medium plate much more expensive than the domestic ones?

A: The DNP culture medium plate is the most advanced culture medium plate in Japan. The international quality is not expensive as a pure imported product.

17. Q: What is the difference between culture medium plate and contact media?

A: The culture medium plate can be used for the detection of all samples. The contact medium is only used for the detection of environmental and industrial equipment, and the culture medium plate uses dry powder medium with the storage time 3 times longer than the contact medium.