Features

• • High water solubility
  • Growth inhibitory effect
    against various microorganisms
  • Extremely stable against heat.
  • Wide range pH stability
• 
• 

• Microbial growth inhibitory effect

  

• Growth inhibitory effect at each pH range

  

• Heat stability test

  

Application Examples

Effect of Aggregation

As a cationic polymer, it can reacts with anionic polymers such as proteins, nucleic acids or polysaccharides, and precipitate as ion-complex.

1) Kazunori U, Yoshimitsu H, Tomotake M, and Tokuma F.: ACS OMEGA, 4, 9756(2019)

Effect of Adsorption

Adosorption of ε-polylysine on the surface of hair, skin, plastic, metal or else can be used to modify chemical propaties.

Adsorption of polylysine to human hair (visualized by using fluorolabeled technique)

Observation of HeLa D98 cell culture in 24-well plates coated with α- or ε-polylysine

ε-Polylysine contributes to better cell adhesion effect than α-Polylysine.

Effect of Deodrant

ε-Polylysine is confirmed to have an ability of deodorant especially against lower fatty acids.

1. Add malodorous substances (n-butyric acid or iso-valeric acid) and polylysine or pure water (BLANK) in the F2s sampling bags.
2. After filling with air, seal and letting them stan on the hot bath.
3. After letting them cooldown, the concentration of each malodorous substances was measured.

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