Appearance |
Light yellow to yellow free flowing powder |
Solubility |
Freely soluble in distilled /purified water , insoluble in alcohol |
Clarity of solution |
1% w/v aqueous solution is clear without haziness after autoclaving at 15 lbs pressure (at 121°C) for 15 mins |
pH (2% w/v solution in water) |
6.20 - 7.20 |
Total nitrogen (N) |
Min 12.0% |
Amino nitrogen |
Min 3.0% |
Sodium Chloride (by AgNO3 titration) |
Max 6.0% |
Loss on drying |
Max 6.0% |
Residue on ignition |
Max 17.0% |
Microbial Limits |
|
Total aerobic plate count |
Max 2000 CFU/gm |
Total yeast and mould conut |
Max 100 CFU/gm |
Test for pathogens |
|
E.coli. |
Negative in 10 gm of sample |
Salmonella species |
Negative in 10 gms of sample |
Pseudomonas aeruginosa |
Negative in 10 gms of sample |
Staphylococcus aureus |
Negative in 10 gms of sample |