E433 (Polysorbate 80) – Emulsifier Overview
E433 (Polysorbate 80) is a synthetic emulsifier used in food, cosmetics, and pharmaceuticals to blend water and fat into stable mixtures.
Wissenswertes über "E433"
E433 (Polysorbate 80) is a synthetic emulsifier used in food, cosmetics, and pharmaceuticals to blend water and fat into stable mixtures.
What is E433?
E433, commonly known as Polysorbate 80 or polyoxyethylene sorbitan monooleate, is a synthetic emulsifier derived from sorbitol and oleic acid. It belongs to the polysorbate family and is widely used in the food industry, pharmaceutical manufacturing, and cosmetics. Within the European Union, it is approved as a food additive under the designation E433.
Uses and Applications
Polysorbate 80 functions as an emulsifier, stabilizer, and solubilizer. Its primary role is to blend water-based and fat-based ingredients into uniform, stable emulsions that would otherwise separate.
Food Industry
In food production, E433 is commonly found in:
- Ice cream and frozen desserts
- Baked goods and pastries
- Salad dressings and sauces
- Cocoa products and chocolate
- Chewing gum and confectionery
Pharmaceutical Industry
In pharmaceuticals, Polysorbate 80 is used as an excipient in injectable solutions, tablets, and capsules. It improves the solubility of active ingredients and enhances their absorption in the body. It is also used as an excipient in certain vaccines.
Cosmetics
In cosmetics and personal care products, E433 is used as an emulsifier and solubilizer in creams, lotions, shampoos, and other formulations.
Mechanism of Action
Polysorbate 80 is a nonionic surfactant. It possesses both hydrophilic (water-attracting) and lipophilic (fat-attracting) properties, allowing it to act at the interface between water and oil. This stabilizes oil-in-water emulsions and prevents phase separation.
Safety and Health Considerations
E433 is considered safe within the limits established by the European Food Safety Authority (EFSA). The acceptable daily intake (ADI) is set at 10 mg per kilogram of body weight per day (applicable to polysorbates as a group).
Possible Intolerances
Sensitive individuals may, in rare cases, react to Polysorbate 80. Reported reactions include:
- Skin irritation or allergic reactions, especially with topical use
- Gastrointestinal discomfort such as bloating or diarrhea with excessive consumption
- In very rare cases: hypersensitivity reactions with intravenous administration in medical settings
Scientific Discussion
Some studies have suggested that high intake of emulsifiers such as Polysorbate 80 may influence the intestinal barrier and alter the gut microbiome. However, these findings come primarily from animal studies. No adverse effects have been confirmed in humans at typical dietary intake levels. Research in this area is ongoing.
Labeling Requirements
In the European Union, E433 must be declared on food ingredient lists either by its name (Polysorbate 80) or its E-number (E433).
References
- European Food Safety Authority (EFSA): Re-evaluation of polyoxyethylene sorbitan monolaurate (E 432), polyoxyethylene sorbitan monooleate (E 433), polyoxyethylene sorbitan monopalmitate (E 434), polyoxyethylene sorbitan monostearate (E 435) and polyoxyethylene sorbitan tristearate (E 436) as food additives. EFSA Journal, 2015.
- Chassaing B. et al. - Dietary emulsifiers impact the mouse gut microbiota promoting colitis and metabolic syndrome. Nature, 2015.
- European Commission: Regulation (EC) No 1333/2008 of the European Parliament and of the Council on food additives.
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Related search terms: E433 + Polysorbate 80 + Polyoxyethylene sorbitan monooleate