... food preservative Broad antibacterial spectrum and high safety ε-Polylysine is a high-efficiency antimicrobial food preservative. It ... yeast, mould and virus. Compared to traditional preservatives, ε-polylysine shows the advantages on safety, good thermostability and solubility ... applied in food and personal care chemical products.ε-Polylysine is slightly bitter, hygroscopic, pale yellow powder. ...