physical properties:

??-Polylysine is hygroscopic, light yellow power. It is soluble in water, slightly soluble in ethanol, insoluble in organic solvent such as ethyl acetate, ether, ect.. The molecular of ??-Polylysine is a straight chain polymer of lysine. It can decompose for lysine within the human body, and can be completely digested absorption by the human body, not only doesn't have any poisonous side-effect, but also can be regard as the source of one kind of lyisine.

??-Polylysine can inhibit the growth of Gram(+) and Gram(-) bacteria , yeast, mould, virus, ect., especially inhibit the Gram(-) bacteria which can't easily inhibit by other preservatives, such as E.coli, Salmonella, and also can inhibit the thermophilics, such as B,stearothermophilus. Its activity is not affected by PH, and stable when heated (120?? for 20min). Therefore, it can be sterilized along with the raw material. It is a food preservati...

1??CAS No.:25104-18-1

2??Chemical formula:(C6H12N2O)n

3??Molar mass:variable??4700 g/mol (degree of polymerization = 30)

4??Melting point:142.2 °C

5??Chemical structure:

6??properties:

6.1 Wide range of antimicrobial activity:ε-polylysine can inhibit the growth of Gram(+) and Gram(-) bacteria, yeast, ect., especially inhibit the Gram(-) bacteria which can’t easily inhibit by other preservatives.

6.2 Good heat stability:ε-polylysine activity is not affected by heated(120?? for 20min).Therefore, it can be sterilized along with the raw material.

6.3 Stable at wide range of pH:ε-polylysine activity is not affected by pH(pH 2-9)

6.4 Good synergistic ability:ε-polylysine shows synergistic antimicrobial activities with organic acid, Nisin, fatty glyceride and glyc...