Product Description

CAS No.:25104-18-1

Polylysine is a homopolymer of L-lysine, one of the essential amino acids. It is linked by peptide bond formed with α-carboxyl of L-lysine and ε-azyl from other L-lysine, with molecular weight between 4130-5776, usually used as food preservative. It has a wide antimicrobial spectrum, good heat resistance, and wide pH range adaptions and other advantages.


Key Index

DescriptionWhite to creamy yellow powder
Loss on drying,w/%8.0
pH(10g/L solution) 
Pb (mg/kg)2.0
Ignition residue,w/%  2.0
Arsenic /(mg/kg)   3.0



Wide antibacterial spectrum: ε-polylysine has a good inhibitory effect on bacteria, mold and yeast.

Good heat resistance: With 120℃ treatment for 60 minutes, the antibacterial effect is still stable.

Applicable to a wide pH range: Antibacterial effect is good at pH 3-9.

Good water solubility: Easy to use, does not affect the food flavor.



Make a 5-10% solution with cold boiled water or distilled water, and then add it into food and mix it thoroughly. Or, can make different preparations with acetic acid, glycerin and other materials and add them into food.



Our ε-polylysine quality conforms to our international standard. Strict quality control is implemented in the production process and our company has passed ISO9001, ISO22000, Halal and Kosher certificates.



100g/bag, 500kg/bag, 1kg/bag or customize


Storage and shelf life

Keep under cool dry conditions in unopened packs away from direct sunlight.

Shelf life: 24 months.


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