E434 - Polyoxyethylene sorbitan monopalmitate

Origin

Polyoxyethylene sorbitan monopalmitate, also known as Polysorbate 40, is a nonionic surfactant produced by ethoxylating sorbitan monopalmitate. Sorbitan monopalmitate is derived from sorbitol (a sugar alcohol) and palmitic acid (a saturated fatty acid commonly found in vegetable oils). The ethoxylation process involves reacting sorbitan monopalmitate with ethylene oxide, increasing its hydrophilicity and making it soluble in water.

Usage

E434 is primarily used as an emulsifier, stabilizer, and dispersing agent in a wide range of food products. It helps to blend oil and water-based ingredients, preventing separation and maintaining a consistent texture. Common applications include baked goods, dairy products, processed fruits, and confectionery. It can also be found in some cosmetic and pharmaceutical formulations. The typical usage levels vary depending on the application, but are generally within the range of 0.1% to 1%.

Side Effects

Polyoxyethylene sorbitan monopalmitate is generally considered safe for consumption at the levels typically used in food. The Joint FAO/WHO Expert Committee on Food Additives (JECFA) has established an Acceptable Daily Intake (ADI) of 0-25 mg/kg body weight for Polysorbates (including E432, E434, E435, E436) combined. Some individuals may experience mild gastrointestinal discomfort, such as bloating or diarrhea, if consumed in large quantities. However, such effects are rare at normal dietary exposure levels. Allergic reactions are uncommon but possible, particularly in individuals with sensitivities to ethylene oxide or sorbitol.

Regulatory Status

Polyoxyethylene sorbitan monopalmitate (E434) is approved for use as a food additive in many countries, including those in the European Union, the United States, and Canada. Regulations specify the permitted food categories and maximum usage levels. In the EU, it is subject to the general provisions of Regulation (EC) No 1333/2008 on food additives. In the US, it is regulated under the Code of Federal Regulations (CFR) Title 21 as a food additive permitted for direct addition to food.