Buy Nisin Powder Food Preservative Online CAS 1414-45-5
Nisin Specification
Product Name: Nisin
CAS: 1414-45-5
Standard: National Standard
Content: 99%
Potency: ≥1000IU/Mg
Appearance: yellowish powder
Packing: 500G/fluorinated bottle can not be split
Ingredients: nisin greater than 1000 IU/Mg (greater than 2.5%) sodium chloride greater than 50%
Physical and chemical properties: It is a polypeptide antibiotic secreted by Streptococcus lactis and consists of 34 amino acids. The solubility in water depends on the Ph value, the solubility is 12% when the pH value is 2.5, and it drops to 4% when the pH value is 5.0. It is insoluble in water under neutral and alkaline conditions. When the Ph value is 2, the heat resistance is good, and when the Ph value is more than 5, the heat resistance is lowered.
Category: Natural Food
Industry: Food
Field: Antibacterial agent
Lower products: coarse grains enema products, rice enema products,
Application: It can effectively inhibit many Gram-positive bacteria causing food spoilage, such as Lactobacillus, Leuconostoc, Micrococcus, Staphylococcus, Listeria, etc., especially for spore-forming bacteria such as Bacillus, Clostridium There is a strong inhibitory effect.
Usage and dosage: 0.25g/kg
What is Nisin?
Nisin is a polycyclic antibacterial peptide produced by the bacterium Lactococcus lactis that is used as a food preservative. It has 34 amino acid residues, including the uncommon amino acids lanthionine (Lan), methyllanthionine (MeLan), didehydroalanine (Dha), and didehydroaminobutyric acid (Dhb). These unusual amino acids are introduced by posttranslational modification of the precursor peptide. In these reactions a ribosomally synthesized 57-mer is converted to the final peptide. The unsaturated amino acids originate from serine and threonine, and the enzyme-catalysed addition of cysteine residues to the didehydro amino acids result in the multiple (5) thioether bridges.
Nisin Certificate of Analysis
| Product name |
Nisin |
| CAS No. |
1414-45-5 |
Outer Packing |
25kg/drum |
| Production date |
2018.5.10 |
Shelf life |
2020.5.9 |
| Standard adopted |
Enterprise standard |
| Items of analysis |
Specification |
Results |
| Appearance |
Light brown to white powder |
complies |
| Hydrous Potency (IU/mg) |
≥1000 |
1035 |
| Sodium chloride (%w/w) |
≥50 |
89.80 |
| Loss on drying (% w/w) |
≤3.0(when dried to constant weight at 102°C to 103°C) |
1.36 |
| PH of 10% Aqueous Solution |
3.1-3.6 |
3.48 |
| Arsenic (mg/kg) |
≤1.0 |
complies |
| Mercury (mg/kg) |
≤1.0 |
complies |
| Lead(mg/kg) |
≤5.0 |
complies |
| Heavy metals (as Pb, mg/kg) |
≤10.0 |
complies |
| Total bacterial count (cfu/g) |
≤10 |
complies |
| Coli form bacteria (MPN/ioog) |
≤30 |
complies |
| Conclusion |
Qualified |
