... a natural substance made from streptomycesalbulus metabolism. High potency E -Polylysine is a hygroscopic,light yellow power. It is ... can be completely digested and absorpted , but has nopoisnous side-effects.ε-Polylysine can inhibit the growth of Gram(+) and Gram(-) ... which can't be easily inhibited by otherpreservatives,such as E coli, Salmonella,and thermophilicbacillus , etc.lts activity is ...