Lysozymes

Lysozyme is a naturally occurring enzyme found in bodily secretions such as tears, saliva, and milk. 

Lysozyme, one of the most powerful natural antibacterial and antiviral compounds known to man, has been used in foods and pharmaceuticals for over three decades as it naturally inhibits the growth of many spoilage organisms, increases healthy shelf life and ensures food safety. It also boosts the immunity system. 
 

The perfect natural alternative to synthetic preservatives for organic, artisanal and minimally processed foods, lysozyme ultimately helps stop multi-drug resistance in microbes due to overuse of antibiotics, as it can and has replaced the use of chemicals in many food and pharmaceutical applications. 
 

As Nature's Antimicrobial, lysozyme is a key element in the immune system's fight against infection. This natural polypeptide with a molecular weight of 14,3kDa is found in the organs and bodily fluids of humans, animals, and plants. Lysozyme is naturally present in (and can be isolated from) mother's milk, tears, saliva, and even cauliflower juice, but the most important source from which lysozyme can be extracted on an industrial scale is Bovine colostrum.