Lysozym, også kendt som muramidase, er et naturligt forekommende enzym, der findes i kropslige sekreter såsom tårer, spyt og mælk. I mellemtiden er det det eneste stof i disse kropsvæsker, der har aktivt antiseptisk materiale. Tilhører den første linje i kroppens naturlige forsvar,
lysozymspiller rollen som pionerstyrker og spejdere i organismen forsvar uden for invasion proces.
Lysozym as a kind of non-specific immune factor existing in the human body normal fluids and tissues, has many pharmacological effects, it has antibacterial, antiviral, anti tumor effect, the current medical lysozym, its indications for bleeding, blood in urine, blood in phlegm, rhinitis, etc.
Lysozym has the function of destroying bacteria cell wall structure, used for treatment G + bacteria to get protoplast, therefore, lysozym is an essential tool enzyme in of cell fusion operation in genetic engineering, cell engineering.