INTENDED USE
- BacterPlate™ Chocolate Agar with VTCN (HP VTCN) is selective culture medium designed for the isolation and cultivation of Helicobacter pylori. It is supplemented with Vancomycin, Trimethoprim, Colistin, and Nystatin to suppress the growth of Gram-positive bacteria, Gram-negative bacteria, and fungi, ensuring optimal selectivity for H. pylori. This medium is widely utilized in clinical diagnostics and microbiological quality control.
- The typical composition of base medium (Columbia Agar) corresponds to that defined in European (EP), United States (UP) and Japanese (JP) Pharmacopeias.
- The packaging with semi-permeable Cellophane film helps balance the humidity of the environment during storage.
PRINCIPLES
- Peptones included in the composition of the medium favor the excellent growth of colonies.
- Yeast extract is a source of vitamin B complex.
- Starch is a detoxifying agent and also an energy source.
- The heat treatment of blood in the medium lyses red blood cells, releasing growth factors such as hemin (X factor) and NAD (V factor), which are essential for the growth of certain bacteria.
- Vancomycin inhibits Gram-positive bacteria.
- Trimethoprim suppresses Gram-negative bacteria by interfering with folate synthesis.
- Colistin: Targets and inhibits Gram-negative contaminants.
- Nystatin: Prevents fungal growth.

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