Appearance (Colour)
Cream, free flowing, homogeneous powder
Solubility (Colour) 2% aq. solution
Light to medium amber, clear
2.0% solution is completely soluble in water
pH (25°C)
5.50 - 6.50
Stability (After autoclaving)
Light to medium amber, clear
Loss on drying
< 5.0 %
Nitrogen content (N)
9.0 % - 11.0%
Cultural Response
Inoculate and incubate at 37°C for 18- 24 hours
Organism
Escherichia coli ATCC 25922
Inoculum (cfu) 10-100
Growth : Good
Organism
Staphylococcus aureus ATCC 25923
Inoculum (cfu) 10-100
Growth : Good
Indole Production (0.1%)
Escherichia coli ATCC 25922
Result : Negative
Ash
< 30.0 %
Applications
Acid digest of casien; is a rich source of nitrogen.
