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[Chemical Knowledge]：The role of sodium bisulfite: sterilization and preservation

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Sodium bisulfite is a commonly used disinfectant and antiseptic. Its main function is to destroy the cell structure of microorganisms such as bacteria, viruses and fungi through oxidation. It is widely used in medical, food processing and other fields. Sodium bisulfite

1. sterilization
can disrupt the growth, reproduction and metabolism of microorganisms by damaging their DNA and RNA molecules. In the medical field, sodium bisulfite is often used to sterilize surgical instruments and to disinfect wards.

In the laboratory, sodium bisulfite is also widely used to sterilize petri dishes, biological products and experimental instruments. Because of its broad spectrum, high efficiency and easy operation, sodium bisulfite is considered to be an effective sterilization agent. Sodium bisulfite

2. antiseptic
is able to disrupt the membrane structure of microorganisms, thereby preventing their further growth and reproduction. In the field of food processing and preservation, sodium bisulfite is often used to prevent food spoilage and spoilage.

For example, in vegetable processing, sodium bisulfite can prevent the activity of oxidase and slow down the discoloration and softening of vegetables; in meat preservation, sodium bisulfite can inhibit the growth of oxidase and bacteria in meat and prolong the shelf life of meat products.

3. applications

Sodium bisulfite has a wide range of applications, including medical, food processing, cosmetics, textile processing and other fields. In the medical field, sodium bisulfite is used for sterilization equipment, ward disinfection, wound cleaning, etc.; in food processing, sodium bisulfite is used for preservation, preservation, bleaching and seasoning.

In cosmetics and textile processing, sodium bisulfite is used for bleaching, preservation, softening and pH reduction. Because of its low cost, easy operation and flexibility, sodium bisulfite has been widely used in these fields.

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