Polylysine Powder, Epsilon-PolyLysine (EPL), Food Grade

Save $14.00

Weight: 100g
Sale price$66.00 Regular price$80.00


Epsilon-Polylysine (EPL), also known as ε-polylysine, stands as a vital natural preservative in the food industry. This slightly bitter, hygroscopic powder dissolves readily in water and exhibits slight solubility in ethanol. Comprised of a straight-chain polymer of L-lysine, its potency remains unaffected by pH variations and sustains stability even at high temperatures (120 ºC for 20 min), ensuring consistent performance.

CAS Number:  28211-04-3
Chemical Formula:  (C6H12N2O•HCl)n
Synonyms: (S)-Poly(imino(2-amino-1-oxo-1,6-hexanediyl)), E-Polylysine, ε –Polylysine, Poly(E-lysine)

Appearance: Light yellow powder
Assay: Not less than 95%
Moisture: Not more than 5.0%
Total Heavy metals: Not more than 20 ppm
Lead [Pb]: Not more than 3 ppm
Arsenic [As2O3]: Not more than 1 ppm
Total Plate Count: Not more than 100cfu/gram

Key Features:

  • Profoundly inhibits bacteria, yeasts, and molds, especially targeting Gram-negative bacteria resistant to other agents.
  • Offers high safety, solubility, and stability, preserving taste while exhibiting antibacterial properties in neutral or slightly acidic conditions.
  • Exhibits stability against heat, enabling control of heat-resistant bacteria and certain noncontractile siphovirus strains.
  • Acts as a diet therapy for obesity by curtailing fat absorption in the small intestine via inhibition of pancreatic lipase activities.
  • Finds utility in cosmetics, disinfectants, and food machinery cleaning agents.


  1. ε-Polylysine effectively suppresses bacterial, yeast, and mold growth, especially Gram-negative bacteria, unlike other agents.
  2. As a reliable preservative, ε-PL ensures high safety, water solubility, stability in high temperatures, wide applicability, and taste neutrality, exhibiting antibacterial properties in neutral or mildly acidic conditions.
  3. Its stability at high temperatures inhibits heat-resistant bacillus and certain noncontractile siphovirus forms post-heat treatment.
  4. By suppressing pancreatic lipase activities, ε-Polylysine aids in preventing small intestine fat absorption, potentially beneficial in treating obesity.
  5. Beyond food, it finds applications in cosmetics and serves as a disinfectant or cleaner for food machinery and hutch maintenance, showcasing versatile uses.


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