... water-solubility 3. Good thermal stability Epsilon Polylysine, which is a natural antimicrobial agent for preservation and bacteria inhibition. It ... can inhibit Gram+ ,Gram, fungi, virus etc. It is colorless,tasteless, water soluble and thermal stability. It can be ... min. Polylysine does not decompose, nor experience inactivation, and is suitable for cooked food.3. Good water-solubility: Polylysine ...