I. Sodium Erythorbate (Molecular Formula: C₆H₇O₆Na·H₂O)

1. Alias: D-Isoascorbate Sodium, Sodium Isoascorbate, Sodium D-Isoascorbate

2. Properties: white crystalline, odourless, salty, freely soluble in water; water solution easily oxidized by air; trace metal ions, heat and light can accelerate oxidation; relatively stable in dry state.

3. Manufacturing methods and quality standard: Sodium Erythorbate is prepared from the biological fermentation of glucose; its standard number is GB 8273-2008, and its standard name is D-Isoascorbate Sodium food additive.

4. Advantages and uses: The biggest advantages of Sodium Erythorbate are that it has no sour taste, is non-toxic and is harmless to the human body. It is a new type of biological food preservative which is widely used, green and safe. It has been determined by the World Health Organization and Food and Agriculture Organization of the United Nations, U.S. Food and Drug Administration, Canada and the European Union to be a legal and safe food additive.

    In the food industry, Sodium Erythorbate can be used as a preservative suitable for all kinds of food (meat products, canned meat, canned fruits and vegetables, fruits, vegetables, beer, wine, fruit tea, fruit juice, jam, frozen aquatic products, cake, bread, etc.) to prevent the production of nitrate amine carcinogens, inhibit bacterial growth, extend the storage time of food, maintain the appearance, brightness, flavor and smell of food, eliminate discoloration, peculiar smell, turbidity and other undesirable phenomena of food and beverage, and particularly ensure that the vitamin C in juice and jam is not damaged. In fruits and vegetables, Sodium Erythorbate can effectively inhibit bacterial growth, reduce oxidase activity and prevent them from decomposing.

    In addition, Sodium Erythorbate can be used as a deoxidizer, corrosion inhibitor and anti-scaling agent. Adding a small amount of Sodium Erythorbate to boiler water can trap oxygen in the water, thus limescale can be effectively prevented and reduced. Sodium Erythorbate can also be used to replace hydrogen quinones and other harmful chemicals in developer. It is used as an auxiliary material for drug and sanitary products, stabilizers of chemical raw materials and electrolytes for electroplating. It is also used in the production of metal powder, recycling of heavy metals and preparation of macromolecule polymers. Other fields such as textile, building materials, petrochemicals, household chemicals, feed processing, wool textiles and so on also have applications of Sodium Erythorbate.

II Isoascorbic Acid (Molecular Formula: C₆H₈O₆)

    Also known as D-Erythorbic Acid, Isoascorbic Acid is a product made from Sodium Erythorbate under acidic conditions. Isoascorbic Acid has a strong reduction effect and is capable of lowering blood pressure, diuresis, generating liver glycogen, pigment excretion, detoxification and so on. It has no toxicity or side effects. Its other uses are basically similar to those of Sodium Erythorbate.

    Sodium Erythorbate and Isoascorbic Acid are recognized internationally as the latest Class A green products. In the context of increasing global attention being given to green consumption, they have become the most popular products at home and abroad.