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What is sodium benzoate powder?
Sodium benzoate is an organic sodium salt with the chemical formula C7H5NaO2, usually existing as a white crystalline powder. It is produced by reacting benzoic acid with sodium hydroxide and exhibits excellent water solubility and stability. In the health supplement industry, it is primarily used as a preservative to effectively inhibit the growth of bacteria, yeast, and mold, ensuring the stability of liquid and semi-solid products during storage and use.
After sodium benzoate enters the human body, in the process of biological transformation, it combines with glycine to become uric acid, or combines with glucuronic acid to become glucosinolates, and all of them are discharged from the urine, and do not accumulate in the body.
Within the normal dosage range, it has no toxic effect on human body and is a safer preservative. It can be used in carbonated beverages, concentrated fruit juice, margarine, gum mother sugar gelatin base, jam, jelly, soy sauce and so on. The acceptable daily intake (ADI) for human body is <5mg/kg body weight (in benzoic acid).
Sodium benzoate is lipophilic, easy to penetrate the cell membrane into the cell body, interfering with the permeability of the cell membrane, inhibit the absorption of amino acids into the cell membrane; into the cell body ionization acidification of intracellular alkali storage, and inhibit the activity of cellular respiratory enzyme system, to prevent the acetyl-coenzyme A condensation reaction, so as to play a food preservation purposes.
Uses and functions of Sodium Benzoate powder.
1. Sodium benzoate can be used as food additive (preservative), bactericide in pharmaceutical industry, mordant in dyestuff industry, plasticizer in plastics industry, and also used as intermediate in organic synthesis such as spices.
2. Co-solvent for serum bilirubin test.
3. Used in pharmaceutical industry and plant genetic research, also used as dye intermediates, fungicides and preservatives.
Advantages of Sodium Benzoate Powder in the Health Supplement Market:
1. Highly Effective and Broad-Spectrum Preservative Protection: Sodium benzoate powder effectively inhibits the growth of mold, yeast, and certain bacteria, extending the shelf life of health supplements. For the European and American markets, which emphasize natural ingredients, its dosage is relatively low to achieve ideal results.
2. pH Sensitivity Advantage: Unlike many other preservatives, sodium benzoate powder is most active in acidic environments, making it particularly suitable for vitamin C supplements, juice-based health supplements, and other acidic formulations.
3. Regulatory Approval and Safety: The U.S. Food and Drug Administration (FDA) and the European Food Safety Authority (EFSA) have both approved sodium benzoate as a food additive (listed as E211 and INS 211, respectively). Within the prescribed usage limits (typically 0.1%), it is considered safe.
4. Interaction with Vitamin C: When sodium benzoate combines with vitamin C (ascorbic acid), trace amounts of benzene may form under certain conditions. However, this process requires specific conditions such as high temperature, light exposure, and long-term storage. Following best manufacturing practices and proper storage can minimize this risk.
Proper Use Guidelines and Best Practices
Product Method of Bulk Sodium Benzoate powder.
Obtained by neutralizing benzoic acid with sodium bicarbonate. Add water and sodium bicarbonate to the neutralization pot, heat to boiling to dissolve into sodium bicarbonate solution. Put benzoic acid under stirring, until the pH of the reaction solution is 7-7.5, heat to make carbon dioxide escape, add activated carbon decolorization for half an hour.
Filtering, the filtrate is concentrated and slowly put into the liquid disk of the slicing machine, dried by roller slicing, crushed, sodium benzoate. Consumption quota benzoic acid (99.5%) 1045kg/t, sodium bicarbonate (98%) 610kg/t.
Frequently Asked Questions about Sodium Benzoate Powder
Q: What is the main function of sodium benzoate in health supplements?
A: Sodium benzoate is mainly used as a preservative to prevent the growth of bacteria, yeast, and mold, extending the shelf life of health supplements and ensuring product safety, especially in water-based and semi-solid products that have been opened and used multiple times.
Q: Is sodium benzoate safe for health?
A: Sodium benzoate is considered safe when used at concentrations approved by regulatory agencies. The FDA classifies it as a GRAS substance, and the EFSA has set a safe daily intake. A small number of people may be sensitive, but this is uncommon.
Q: Is it safe to use sodium benzoate with vitamin C supplements?
A: Yes, it is safe to use under standard production conditions. Modern production processes strictly control pH, concentration, and storage conditions to minimize any potential interactions, meeting European and American safety standards.
Q: What is the typical usage concentration of sodium benzoate in health supplements?
A: The typical usage concentration is 0.05%-0.1%, depending on the product type, pH, and other formulation factors. It is always recommended to start with the lowest effective concentration and ensure compliance with local regulations.
Q: How should sodium benzoate powder be stored?
A: It should be stored in a sealed, moisture-proof container in a cool, dry place, away from direct sunlight and heat sources. Under proper storage, sodium benzoate powder typically has a stability of at least two years.
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