Violet Red Bile Agar (VRBA)

1.Due to varying microwave power, if the medium is not fully melted within 3 minutes, crush it into pieces before heating on high power, or extend the heating time by 0.5 to 1 minute.
2.Check for contamination. Do not use if microbial growth is observed.
3.Pour plates under aseptic conditions to prevent microbial contamination.
4.Do not overheat in the microwave, as excessive heating will cause severe water loss and reduce the nutritional performance of the product.
5.This product is for single use only. Pour out all the medium in the bottle and avoid repeated melting and solidification.
6.This product is not intended for clinical diagnosis. Test Principle: Peptone and yeast extract supply carbon and nitrogen sources, vitamins, growth factors, coenzymes and other nutrients. Sodium chloride maintains osmotic balance. Lactose, a fermentable carbohydrate, serves as an energy source. Bile salts and crystal violet inhibit the growth of Gram-positive bacteria. Neutral red acts as an indicator, and agar is used as the gelling agent for the medium.