e-Polylysine is a natural substance made from streptomyces albulus ... a natural substance made from streptomycesalbulus metabolism. High potency E -Polylysine is a hygroscopic,light yellow power. It is ... which can't be easily inhibited by otherpreservatives,such as E coli, Salmonella,and thermophilicbacillus , etc.lts activity is not ... in well-closed container, away from direct sunlight. e-Polylysine