Company: Zhengzhou Bina Buddha Biological Engineering Co., Ltd. was founded in 2007 with a registered capital of 10 million yuan, the headquarters is located in the hinterland of the Central Plains - Zhengzhou, the production base covering 55000㎡. The use of modern biotechnology for various food additives, biological preservative, antibacterial liquid biological development and production of biological products, such as high-tech enterprises. Company advanced equipment, excellent performance, bio-fermentation system with automatic domestic first-class modern, separation and purification systems and comprehensive supporting systems. Advanced management mode, has won the ISO9001-2008 quality management system and ISO22000-2006 food safety management system certification. Description: ε- polylysine (ε-poly-L-lysine, referred to as ε-PL) is a streptococcus by white (Streptomyces albulus) fermentative production contain 25 to 30 lysine residues L- the same type of monomer polymer, ε- amide bond formation by essential amino acids L- lysine ε- amino and carboxyl another α- L- lysine are connected, ε-PL was first discovered by Japanese scientists . May 2014 polylysine entered the national food additive regulations GB GB, the effect is obvious, safe. ε- polylysine features -? polylysine (ε-PL) has broad-spectrum antimicrobial activity against Gram-positive and Gram-negative bacteria such as Bacillus subtilis, Lactobacillus, Staphylococcus aureus, E. coli and other breeding there is a strong inhibition of yeasts and molds also have a certain extent. As a preservative, ε-PL has a high safety performance, highly soluble in water, good thermal stability, using a wide range of advantages, in neutral and acidic environmental conditions have a strong antibacterial activity (Table 3 ). Because of the heat-stable, it can be added after heat treatment (Table 4), and therefore can inhibit some of the heat resistance of Bacillus, etc. In addition, ε-PL for some form of tadpole-like non-contractile phage Elliot also inhibited.