| ≥1 piece |
|
Molecular Formula: |
C 143 H 228 O 37 N 42 S 7 |
|
Molecular Weight: |
3348 |
|
Product code: |
China 17.019 |
|
INS 234 |
|
|
CAS 1414-45-5 |
|
|
Specification of Product |
|
|
Program |
Specification |
|
Appearance |
Off-white powder |
|
Content (IU/mg) |
≥ 1000 |
|
Moisture(%) |
≤ 3 |
|
Heavy Metals (Pb) (mg/kg) |
≤ 0.001 |
|
≤ 10 |
|
|
As(%) |
≤ 0.0001 |
|
NaCl (%) |
≥ 50 |
|
Count of Colony (cuf/g) |
≤ 10 |
|
E. coli. (MPN/100g) |
≤ 30 |
|
Salmonellae spp. |
Absent in 25g |
|
Stability |
Nisin is most stable under acid conditions. It can keep the activity after the treatment at 121 for 30mins at pH2; 47% of the activity remained after the treatment in 110 for 30mins in nonfat milk in pH6.5; But the activity lost rapidly in 30 minutes at 63 in pH 11. |
|
Solubility |
Nisin can be dissolved in aqueous solution, but is insoluble in non-polar solvents. The solubility decreases with the increase of pH, and it increases with the rise of temperature. |