ε
-Polylysine
ε
-Polylysine is a natural substance from Streptomyces albulus metabolism. From 25 ~ 30 lysine residues in polymerization.
，
It can inhibit the growth of Gram-positive and Gram-negative bacteria, yeasts, moulds, virus ect. especially inhibit the Gram-negative
bacteria which can’t be easily inhibited by other preservatives, such as E. coli, salmonella, and also can inhibit the thermophilics, such as B,stearothermophilus. It is widely used as safe Food Preservative.
Product Features
ε
-Polylysine is highly hygroscopic pale yellow powder with a slightly bitter taste. It is soluble in water, slightly soluble in ethanol, insoluble in organic solvent such as ethyl acetate, ether, ect. as food preservative, ε-Polylysine has following properties.
1) Wide spectrum: ε-Polylysine shows anti-microbial activity with a wide spectrum. it
can inhibit Gram-positive, Gram-negative, Yeasts, Moulds which cause food poisoning and corruption
2) High Safety: After human consumption, ε-Polylysine may degrade L-lysine that is essential amino acids for human, without any toxicity, and it was generally recognized as a nutritional preservative by FDA in 2003.
3) Thermal stability:
ε
-Polylysine is stable when heated(120
℃
for 20 min and 80
℃
for 60 min).it can be sterilized along with the raw material.
4) pH range: ε-Polylysine has little effect on the antibacterial activity against E. coli when pH 3-9. the best pH range is 5-8.this working range is just about other preservative doesn’t work, also most of food pH range.
5) High water solubility: ε-Polylysine is water soluble, it is fit to add to food.
Range of application
ε
-Polylysine was generally recognized as a safe food preservative by FDA in October,2003. It is widely used in food preservation. In food application, it is usually applied with alcohol, organic acids, or glyceride, etc.. It can be used in cooked rice, cakes, snacks, noodles, drinks, brewing, meat products, canned food, etc. Also through the Maillard reaction, ε-poly-L-lysine has emulsification and preservation difunctional Food Additives
Usage
ε
-Polylysine is dissolved in cold boiled water or distilled water to 5-10% , then put it into the food according to the recommended dosage and mix fully. If it is used together with other food preservatives, it will can affect better.
Packaging;
0.5kg, 1kg,5kg or packed to customer’s requirements.
Storage;
store in well-closed container, away from direct sunlight.
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