MacConkey Agar w/o Crystal Violet w/o NaCl (Powder)

Used for the isolation and differentiation of gram-negative enteric bacilli. Restricts swarming of most Proteus sp. used to detect enteric bacteria and gram positive bacteria from urine. Microbiological Analysis: Escherichia coli ATCC 25922 growth, bright pink colonies, Enterococcus faecalis ATCC 29212 partial growth, inhibition pink to red, Proteus mirabilis ATCC 12453 growth, part. inhib. of swarming colorless colonies, Salmonella typhimurium ATCC 14028 growth, colorless colonies, Staphylococcus aureus ATCC 25923 growth, pink, Final pH: 7.4 ± 0.2 at 25°C Appearance: Homogeneous, free flowing, light pink-beige., Solubility: Slightly hazy and red-orange. Microbiological Analysis: Escherichia coli ATCC 25922 growth, bright pink colonies, Enterococcus faecalis ATCC 29212 partial growth, inhibition pink to red, Proteus mirabilis ATCC 12453 growth, part. inhib. of swarming colorless colonies, Salmonella typhimurium ATCC 14028 growth, colorless colonies, Staphylococcus aureus ATCC 25923 growth, pink, Important Note: This product as supplied is intended for research use only, not for use in human, therapeutic or diagnostic applications without the expressed written authorization of United States Biological.