The advantages of preservatives mainly include the following aspects:
Extend shelf life: Preservatives effectively extend the shelf life of food, medicine and cosmetics by inhibiting the growth of microorganisms such as bacteria, mold and yeast. For example, sodium benzoate is often used in beverages and jams, which can extend the shelf life of products by up to 6 months.
Keep products safe: Preservatives can prevent the reproduction of pathogens and reduce food poisoning and other health risks. For example, potassium sorbate is often used in dairy products and juices to ensure that they do not change significantly during storage.
Improve economic benefits: By extending the shelf life of products, preservatives reduce waste and improve production and sales efficiency. For example, meat products treated with nitrates and nitrites can have a shelf life of more than twice that of untreated products.
Maintain product stability: Preservatives can not only extend the shelf life of products, but also maintain the stability of their appearance, taste and nutritional content. For example, nitrites are often used in marinated meat to prevent the growth of botulism.
Enhance product safety: Preservatives can prevent the growth of harmful microorganisms, thereby reducing health risks. For example, sodium diacetate is used in pickled vegetables and has a good preservation effect.
Improve taste and texture: Some preservatives can also maintain the taste and texture of food, so that it still has good sensory qualities during the shelf life. For example, sodium diacetate is often used in pickled vegetables, which is safe, non-toxic and has a good preservative effect.