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Polylysine/CAS 25104-18-1

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Product Description:

ε-polylysine hydrochloride is a polymer of L-lysine with preservative function purified from the controlled fermentation culture broth of Streptomyces diastatochromogenes through ion exchange resin.

Molecular formula: [C6H12N2O·HCl]n·H2O n=25~35

Relative molecular weight: 4130~5776

Molecular structural formula


Main Feature:

● A highly efficient and broad-spectrum bacteriostatic agent, ε-polylysine hydrochloride has a very good inhibitory effect on Gram-positive bacteria, Gram-negative bacteria, molds, yeasts, and viruses.


● Good thermal stability.


● It works well within the pH range of 3-9 and is suitable for most foods.


● It has good water solubility, the solution is clear and odorless, easy to use and does not affect the original color and flavor of food.

● It is highly safe and can be degraded into L-lysine necessary for the human body in the body after consumption without any toxic or side effects.


Regulatory safety:

In the Japanese additive catalog, ε-polylysine is classified as a natural preservative. 

The U.S. FDA recognizes this product as a GRAS product and is widely used in food preservation. 

The application scope and dosage of ε-polylysine hydrochloride declared by our company:


Note: According to the "Announcement on the Approval of 4 New Varieties of Food Additives including ε-polylysine" (No. 5, 2014) issued by the National Health and Family Planning Commission

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