E434 – Polyoxyethylene (20) sorbitan monopalmitate
StabiliserDescription
Mixture of partial esters of sorbitol and its mono- and dianhydrides with palmitic acid, copolymerized with approximately 20 moles of ethylene oxide
Notes
Polysorbate 40 is produced by combining sorbitol (a sugar alcohol commonly derived from corn or other plant sources) with palmitic acid (a fatty acid found in palm oil, coconut oil, and other fats) and ethylene oxide. The manufacturing process involves heating these components together under controlled conditions to create a chemical bond, resulting in a compound that has both water-attracting and oil-attracting properties. This synthetic process transforms naturally-occurring starting materials into a specialized food ingredient. As an emulsifier, polysorbate 40 helps blend oil and water-based ingredients together smoothly and keeps them from separating over time. You'll commonly encounter it in baked goods, ice cream, chocolate products, salad dressings, and various processed foods where maintaining a consistent texture is important. It's particularly useful in products that need to stay mixed during storage and transport, helping prevent the oil separation you might otherwise see in some packaged foods. Polysorbate 40 is synthetically manufactured but typically suitable for vegetarian and vegan diets since it can be made from plant-based starting materials. It's approved for food use by regulatory agencies worldwide and considered safe when used within approved limits. The ingredient doesn't usually present allergen concerns, though people with specific sensitivities to food additives may want to be aware of its presence in processed foods.