【 Principle 】

Peptone and beef extract provide the nitrogen source, vitamins, and other minerals required for the growth of bacterial cells; Sodium chloride maintains equilibrium osmotic pressure; A small amount of agar is used as a coagulant for the culture medium.

Main components

Composed of peptone, beef extract, sodium chloride, agar, and distilled water.

Storage conditions and expiration date

Storage conditions: This product should be stored in a dark environment at 2-8 ℃.

Validity period: The unopened original packaging has a validity period of 3 months.

This product is a disposable product.

Bacterial dynamic identification: Puncture differentiation of flagella and non flagella, rapid identification of Shigella (non motile), Salmonella, and Coconut (motile).

Preliminary screening of coconut toxin bacteria: Combining dynamic diffusion and yellow toxin yellow, predict suspected strains of spoilage Tremella fuciformis and rice flour poisoning samples.

Temporary preservation of bacterial strains: short-term preservation of purified bacterial strains to slow down aging and facilitate subsequent experimental use.

Simple classification of intestinal bacteria: assists in distinguishing similar bacterial colonies, reduces the scope of biochemical identification, and improves the efficiency of fecal testing.

Observation of migration and growth: Determine the migration phenomenon of Proteobacteria and assist in identifying the genus Proteobacteria.

Distinguish between bacteria and fungi: Fungi only grow on the surface without piercing or spreading, quickly eliminating fungal interference.

Grassroots rapid screening: easy to operate and low cost, suitable for initial screening of bulk diarrhea and food poisoning samples.

Escherichia coli

Biological characteristics: Gram negative short rod-shaped bacteria with flagella and active movement.

Cultivation characteristics: After puncture cultivation, bacteria diffuse and grow in a cloud like manner from the puncture line to the surrounding area, and the overall culture medium or the puncture line is significantly turbid

Bacillus cereus/Bacillus thuringiensis

Biological characteristics: Gram positive large rod-shaped bacteria with flagella and extremely active movement.

Cultivation characteristics: diffuse growth along the puncture line; Bacillus subtilis can spread in a fuzzy or honeycomb like manner

Salmonella

Biological characteristics: Gram negative bacteria with flagella.

Cultivation characteristics: Spread and grow in a cloud like manner (driven).

Shigella genus (Shigella flexneri, Shigella sonnei)

Biological characteristics: Gram negative short rod-shaped bacteria, lacking flagella and motility.

Cultivation characteristics: It grows in a dense linear shape only along the puncture line, and the surrounding culture medium remains transparent.