Fluid Casein Digest-Soy Lecithin-Polysorbate 20 Medium

Fluid Casein Digest-Soy Lecithin-Polysorbate 20 Medium – Sample Preparation Diluent for Microbiological Testing

Fluid Casein Digest-Soy Lecithin-Polysorbate 20 Medium is a professional microbiological diluent used for sample preparation in microbial testing laboratories. Many pharmaceutical QC labs, cosmetic testing labs, and food microbiology laboratories rely on Fluid Casein Digest-Soy Lecithin-Polysorbate 20 Medium to perform accurate microbial limit testing, USP microbiology testing, bioburden analysis, disinfectant neutralization testing, and laboratory microbial recovery studies.

The nutrient system combines casein digest and soy lecithin, while polysorbate supports neutralization of preservatives and disinfectants, which improves microbial recovery during dilution procedures. This balanced formulation makes Fluid Casein Digest-Soy Lecithin-Polysorbate 20 Medium ideal for pharmaceutical microbiology, environmental monitoring programs, sterility assurance testing, and microbiological quality control workflows. Laboratories performing USP microbial enumeration methods and microbial contamination detection can maintain reliable organism recovery and stable microbial viability during sample dilution.

Preparation Method

Prepare Fluid Casein Digest-Soy Lecithin-Polysorbate 20 Medium by dissolving 25.0 g of the powder in 960 ml purified water. Heat the solution in a 48–50 °C water bath for 30 minutes, then add 40 ml Polysorbate 20 (Tween 20) and mix thoroughly. Sterilize the medium at 121 °C for 15 minutes using standard laboratory autoclave sterilization. After cooling, the diluent is ready for microbiological sample preparation, microbial enumeration testing, and laboratory microbial analysis.

Microbial Sensitivity Test (USP Standard)

Prepare the Fluid Casein Digest-Soy Lecithin-Polysorbate 20 Medium according to the labeled instructions. Inoculate the prepared medium with designated quality control microorganisms and incubate under aerobic conditions at 20–25 °C for 45 minutes to verify microbial recovery performance in USP microbiological testing procedures.

Trusted Manufacturer – Babio Biotechnology

Babio Biotechnology (Babio) is a well-known Chinese manufacturer specializing in microbiological culture media, laboratory diagnostic reagents, and microbial testing solutions. The company supplies reliable products for pharmaceutical microbiology laboratories, research institutes, and global diagnostic markets.

Learn more about Babio microbiology products and laboratory culture media solutions:https://www.babiocorp.com