330 preservative

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  • Isopropyl alcohol, commonly known as isopropanol or rubbing alcohol, is a colorless, flammable liquid with a strong odor. It is widely recognized for its versatility and effectiveness in various applications, particularly in medical, industrial, and household settings. This article will explore the properties, uses, and safety considerations of isopropyl alcohol, especially when available in larger quantities, such as a 5-liter container.


  • 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.


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