DELVONIS N is a powdered formulation of the polypeptide antibacterial agent nisin (E234). DELVONIS N is produced by fermentation of a special strain of Lactococcus lactis subsp. Lactis. The product is formulated on sodium chloride as a carrier. DELVONIS N is used as a bio-preservative in the food industry. It has antimicrobial properties that help extend the shelf life of foods by inhibiting the growth of unwanted microorganisms. DELVONIS N provides food manufacturers an all-natural solution to preserve quality and safety without compromising taste or texture.