1.Extend the shelf life of your products 2.Safety 3.Inhibit the growth of Gram+&Gram- bacteria, yeasts, molds ... > As a good preservative, ε-PL is characterized as being high safety, water-soluble, stable at high temperatures, widely usage, non prejudice ... price!Biological, Natural, Favorable ——BNF——Essence of Our Products Natural FDA approved edible green safe preservative for drinks