... is a natural substance made from streptomycesalbulus metabolism. High potency E -Polylysine is a hygroscopic,light yellow power. It is soluble ... which can't be easily inhibited by otherpreservatives,such as E coli, Salmonella,and thermophilicbacillus , etc.lts activity is not ... kg, 0.5kg, 5kg or packed to customer's requirements.Storage:store in well-closed container, away from direct sunlight ...