DELVONIS is a powdered formulation of the polypeptide antibacterial agent nisin (E234). DELVONIS is commonly used in the food industry as a bio-preservative. As a natural preservative, DELVONIS helps extend the shelf life of foods by inhibiting the growth of unwanted microorganisms. DELVONIS has received approvals for use in processed foods in most countries. DELVONIS is an effective alternative to chemical preservatives, allowing food manufacturers to offer products with a clean label while maintaining microbial safety and quality throughout the supply chain and storage period.