E234 is classified as a food preservative and is categorized as a bacteriocin. Bacteriocins are proteinaceous substances produced by bacteria that can inhibit the growth of similar or closely related bacterial strain. Nisin works by disrupting the cell membrane of target bacteria, leading to cell death. Its effectiveness is particularly notable against Gram-positive bacteria, including pathogens such as Listeria monocytogenes and Staphylococcus aureus. Due to its natural origin and potency, Nisin is favored over synthetic preservatives in many food applications.
5. Enhancing Flavor and Aroma While emulsifiers are often overlooked in terms of flavor impact, E481 can subtly enhance the overall flavor profile of bread. By ensuring that fats are well integrated into the dough, the emulsifier helps in the development of rich flavors during the baking process.