Abstract: As a kind of natural food preservative, ε-poly-L-lysine become more and more popular for its natural, innocuous and antimicrobial property. If its biosynthesis is illustrated clearly, it will be applied to the industrialization widely. This paper reviews the mechanism of biosynthesis and degradation of ε-Poly-L-lysine.

Key words: &epsilon, -PL； biosynthesis； &epsilon, -poly-L-lysine-degrading enzyme；