Sodium Erythorbate, chemical name: D-Sodium isobarbate, is a sodium derivative of ascorbic acid (vitamin C). The molecular form was CHNaO. It is a white or slightly yellow crystalline powder, easily soluble in water, has good antioxidant properties, can effectively inhibit food oxidation deterioration, extend shelf life.
Sodium isoascorbate is mainly used as an antioxidant in the food industry, its antioxidant capacity is better than ascorbate, and the price is relatively low, so it is widely used in food processing. In addition, it can inhibit the conversion of nitrite into nitrosamines (a carcinogen) and improve food safety.
1. Classification and application scenarios
Step 1 Classify
Sodium isoascorbate can be divided into:
- Food grade (purity ≥98%) : mainly used for food processing, in line with food safety standards (such as GB 1886.44-2016).
- Industrial grade (low purity) : used in non-food industries, such as cosmetics, pharmaceutical intermediates, etc.
step 2 Application scenario
(1) Meat processing
- Inhibit oxidation: Prevent fat oxidation of meat products such as ham, sausage and bacon, and maintain color and flavor.
- Nitrite replacement: Reduce the amount of nitrite and reduce the risk of cancer.
(2) Aquatic products
- Preservation: to prevent shrimp, fish and other aquatic products from discoloration and flavor during freezing or refrigeration.
(3) Beverage industry
- Antioxidant: Used in fruit juices, carbonated beverages, etc., to prevent vitamin C oxidation and extend shelf life.
(4) Baked goods
- Improve dough: enhance gluten elasticity, improve the taste of bread and cake.
(5) Other industries
- Pharmaceutical: Used as an antioxidant in pharmaceutical preparations.
- Cosmetics: Used in skin care products to prevent oxidation and deterioration of ingredients.
2. Application field analysis
The production process of sodium isoascorbate mainly includes biological fermentation and chemical synthesis. At present, most Chinese manufacturers use biological fermentation, and the main raw materials are corn starch, glucose and sodium carbonate.
1. Food Industry: It is suitable for making a variety of food (meat products, canned meat, canned fruits and vegetables, fruits, vegetables, beer, wine, fruit tea, juice, jam, frozen aquatic products, bakery food products) preservative and fresh-keeping agent, has a certain inhibitory effect on the production of ammonium nitrate carcinogens, inhibits the growth of bacteria, extends the storage period of food, and maintains the appearance, color and flavor of food.
2. Cosmetics industry: Added to skin care products, it has antioxidant effects, and added to hair care products can prevent the oxidation of keratin and other components in hair.
3. Pharmaceutical industry: As an antioxidant added to some pharmaceutical preparations, can also be added in some nutritional supplements to enhance immunity.
4. Other industries: concrete, oil drilling, etc
3. market demand and export trend analysis
1. Market demand
With the development of the global food industry, the demand for sodium isoascorbate continues to grow, the main drivers include:
- Increased awareness of food safety: consumers' safety requirements for food additives have increased, and the demand for sodium isoascorbate as a safe and efficient antioxidant has increased.
Growth in processed food consumption: The expansion of frozen foods, prepared dishes and other industries is driving demand for antioxidants.
- Nitrite substitution trend: Restrictions on nitrite in various countries have prompted food companies to look for safer alternatives.
2. Export trends
- Main export market: China is the world's main producer of sodium isoascorbate, mainly exported to Europe, the United States, Southeast Asia, the Middle East and other regions.
- Export growth factors:
- International food standards (such as FDA, EFSA) recognize its safety.
- The food processing industry in developing countries is growing rapidly and the demand for imports is increasing.
Trade barriers: Some countries have strict testing standards for the import of food additives, which need to comply with local regulations (such as EU E316 certification).
4. storage precautions
The stability of sodium isoascorbate is affected by storage conditions, and the following matters should be noted:
1. Avoid light and moisture: Should be stored in a cool, dry, ventilated warehouse, avoid direct sunlight.
2. Sealed storage: After opening, it should be strictly sealed to prevent moisture absorption and agglomeration.
3. Temperature control: recommended storage temperature ≤25, high temperature may lead to decomposition.
4. Keep away from oxidants: do not mix with strong oxidants to prevent reactions.
5. Guidelines and precautions for use as food additives
1. User guide
- Dosage: According to GB 2760-2014 "National Standard for Food Safety Standard for Food Additives", the recommended dosage of sodium isoascorbate is as follows:
- Meat products: 0.05~0.5 g/kg
- Aquatic products: 0.1~1.0 g/kg
- Beverage: 0.01~0.1 g/kg
- Usage:
- Direct mixing: mixed evenly with food raw materials.
- Add after dissolution: Dissolve in water before spraying or soaking.
2. Precautions
- Risk of overuse: Although safe, overuse may affect the taste of the food.
- Synergies with other additives: can be combined with citric acid, vitamin E and other antioxidants to enhance the effect.
Regulatory compliance: Export products must comply with the food additive regulations of the importing country (e.g. FDA 21 CFR 182.3041).
6. Supplier research
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Buyer selection Suggestions:
- Enterprises that have passed ISO, HACCP, FSSC 22000 certification are preferred.
- Request COA (Component Analysis Report) and MSDS (Chemical Safety Data Sheet).
- Inspect export experience of enterprises to ensure compliance with target market regulations.
7. Conclusion
Sodium isoascorbate, as an efficient and safe food antioxidant, has a wide application prospect in food industry. With the improvement of global food safety standards and the growth of demand for processed foods, its market will continue to expand. When choosing suppliers, buyers should pay attention to product quality, compliance and enterprise qualifications to ensure that the purchase of products that meet the requirements.
