MacConkey Agar

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: Peptones supply carbon and nitrogen sources, vitamins and growth factors. Ox bile salts and crystal violet inhibit the growth of Gram-positive bacteria. Sodium chloride maintains osmotic balance. Agar serves as the gelling agent of the medium. Lactose is a fermentable sugar. Neutral red acts as a pH indicator. When bacteria ferment lactose to produce acid, the colonies turn pink, accompanied by turbid zones of bile salt precipitation around them.