Nisin

Nisin (also known as Streptococcus lactic peptide) is a polypeptide, with 34 amino acid residues widely used as a food preservative. Nisin possesses anti-microbial activity against a wide range of Gram-positive bacteria and their spores in food. It is catabolized to amino acid in human body, so it is no harm or vice-effect to people. Extensive micro-biological tests have not shown any cross resistant between Nisin and medical antibacterial drug. It is a natural food preservative which is highly efficient, safe and has no side-effects. In addition, it has excellent solubility and stability in food.

Character: Nisin is Grayish white or yellowish powder with hydrous potency 1000IU/mg. It is stable in room temperature and acidity condition even heated. It can endurance 30 min in pH=2.0, 121 and 15 min in pH=3.0, 121 . But at the high pH, the stability of activity can be greatly affected.

Molecular Formula: C143H228N42O37S7
Molecular Weight: 3348

ITEMS SPECIFICATIONS OF QUALITY
Appearance Grayish white or yellowish powder
Content (IU/mg): 1000
Moisture Content: 3%
pH of 10% Aqueous Solution 3.10-3.60
Pb 1mg/kg
As 1mg/kg
Sodium Chloride : 50%
Hydrous Potency : 1 10 6 IU/g
Microbiological Count 10cfu/g
E.Coli in 25gAbsent
Salmonella in 25g Absent

Amount for Application:
GB 2760-90;
FAO/WHO, 1984;
FDA 184.1;
E234
EINECS215-807-5

Toxicity: GRAS(FDA 184.1538, 1994); ADI 33000 IU/kg (FAO/WHO, 1994)

Usage:
1.Fresh milk and dairy products:
Adding 0.05g/kg nisin to fresh milk, it can control bacterial spoilage and extend the shelf life to 2-3 times. Revealed by American experiments, adding nisin to reduced fat milk, no salt butter, degrease milk and flavored milk, it can extend the shelf life to six weeks even at 45 .
2.Liquid egg and egg products:
Adding 0.05-0.1g/kg nisin can efficiently inhibit bacillus spp and extend the shelf life from seven days to one month.
3.Salad and sauce:
Adding nisin to salad or sauce, it can efficiently control the growth of lactococcus lactis and spore and extend the shelf life to four times. The recommended amount is 0.05-0.2g/kg.
4.Canned foods:
Showed by many research, adding nisin to canned vegetable, it can control bacterial spoilage and shorten the time of heat processing required; adding nisin to canned rice wine, it can reduce 90% time of the heat processing, enhance product quality; adding nisin to canned bean, the shelf life can be extent to two years even at 55 .
5.Cured meat/sea foods
The shelf life extend to 2-3 times when using nisin. We can spray nisin liquid on the surface of the products or add nisin into products with the dosage of 0.1-0.2g/kg.
6.Canned soup/juice and drink
Adding 0.1-0.2g/kg can efficiently inhibit the growth of bacteria spores.


0.1kg, 0.5kg, 5kg, 10kg, 20kg, or on customers demand.