nisin powder in wooden bowl. food additive e234 for protection from spoilage of meat, fish, sausage products, including raw smoked

food additive e234 nisin antibiotic powder lantibiotics polycyclic antibacterial peptide lactococcus lactis natural preservative antimicrobial didehydroaminobutyric acid amino dextrose chemical white synthes soluble additives industry natamycin bacteriocin bacteria pathogen medicine product resistance veterinary compound blue heap pile wooden bowl spoon protection spoilage meat fish sausage products including raw smoked sausages obstacles maturation bowl maturation