polylysiini

Polylysine is a polymer composed of lysine amino acids linked by peptide bonds. It is a naturally occurring polypeptide with antimicrobial properties, primarily due to the positively charged epsilon-amino groups of the lysine residues. These positive charges interact with the negatively charged cell membranes of bacteria, disrupting their integrity and leading to cell death.

There are several types of polylysine, with epsilon-polylysine (ε-PL) being the most common and well-studied. ε-PL is produced by certain species of *Streptomyces*. Its effectiveness against a broad spectrum of microorganisms, including bacteria, yeasts, and molds, has led to its investigation and use as a food preservative. It is generally considered safe for consumption and is often referred to as a natural antimicrobial agent.

Beyond its antimicrobial applications, polylysine has also been explored for its potential in drug delivery systems and as a biomaterial. Its biocompatibility and ability to bind to various molecules make it a candidate for targeted drug delivery, gene therapy, and tissue engineering. Research continues to explore the full potential of polylysine and its derivatives in various scientific and industrial fields.