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Microbiological culture media Mac Conkey Agar
Usages: For isolating lactose-fermenting Gram-negative enteric bacilli. Principle: Peptones are sources of nitrogen and other nutrients. Lactose is a fermentable carbohydrate. When lactose is fermented, alocal pH drop around the colony causes a color change in the pH indicator (neutral red) and bile precipitation. Bile salts,bile salts no. 3, oxgall and crystal violet are selective agents that inhibit growth of gram-positive organisms. Agar is the solidifying agent. Formulation(per liter):
Pancreatic Digest of Gelatin
Peptones (meat and casein)
How to use: 1.Suspend 50 g in 1 L of distilled or deionized water. Heat to boiling to dissolve completely. Autoclave at 121°C for 15 minutes. 2.Transfer 1 mL of Soybean–Casein Digest Broth to 100 mL of MacConkey Broth, and incubate at 42to 44for 24 to 48 hours. Subculture on a plate of MacConkey Agar at 30to 35deg.C for 18 to 72 hours. Quality control:
The name and number of strain
Proteus mirabilis CMCC(b)49005
Colorless, no swarming
Staphylococcus aureus ATCC6538
Storage: Keep container tightly closed, store in a cool, dry place, away from bright light. Storage period of three years.
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Our main products are needle filter, solvent filter, microporous membrane, chromatography reagent, solid phase extraction cartridge and so on. The products are used in a wide range of applications, including petrochemical, hydrogeology, environmental protection, quality inspection, sanitation and epidemic prevention, electronic power, bio-pharmaceuticals, food inspection, etc. Our company has passed ISO certification and has the most professional team, the most advanced production equipment and the most sophisticated testing instruments.