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Polysorbate, a substance formulated by the reaction of sorbitan fatty acid ester (a nonionic surfactant) with ethylene oxide, is used in many foreign countries, including the U.S. and the EU, where it acts as an emulsifier, a solubilizer in many foods, including bread, cake mix, salad dressing, shortening oil and chocolate . Polysorbate 80 is a hydrophilic nonionic surfactant. It is utilized as a surfactant in soaps and cosmetics and also as a lubricant in eye drops. In food or pharmaceutical products, it can act as an emulsifier. Polysorbate 80 is an excipient that is used to stabilize aqueous formulations of medications for parenteral administration or vaccinations. A solubilizing agent acts as a surfactant and increases the solubility of one agent in another. A substance that would not normally dissolve in a particular solution is able to dissolve with the use of a solubilizing agent. It is also known as an emulsifier, which helps ingredients mix together and prevent separation, and water-containing small amounts of salts, and is included in several vaccines licensed in the USA.
Polysorbate, a substance formulated by the reaction of sorbitan fatty acid ester (a nonionic surfactant) with ethylene oxide, is used in many foreign countries, including the U.S. and the EU, where it acts as an emulsifier, a solubilizer in many foods, including bread, cake mix, salad dressing, shortening oil and chocolate . Polysorbate 80 is a hydrophilic nonionic surfactant. It is utilized as a surfactant in soaps and cosmetics and also as a lubricant in eye drops. In food or pharmaceutical products, it can act as an emulsifier. Polysorbate 80 is an excipient that is used to stabilize aqueous formulations of medications for parenteral administration or vaccinations. A solubilizing agent acts as a surfactant and increases the solubility of one agent in another. A substance that would not normally dissolve in a particular solution is able to dissolve with the use of a solubilizing agent. It is also known as an emulsifier, which helps ingredients mix together and prevent separation, and water-containing small amounts of salts, and is included in several vaccines licensed in the USA.
Polysorbate 80 is one of the primary components of protein formulations. This drug inhibits interfacial damage of the protein molecule that undergoes mechanical stress during shipping and handling. Polysorbate 80 also affects the formulation photostability. Exposure to light of polysorbate 80 aqueous solution results in peroxide generation, which in turn may lead to oxidation of the susceptible amino acid residues in the protein molecule . One study on rats found that Polysorbate 80 increased apical to basolateral membrane permeability of digoxin in Caco-2 cells suggesting that Ps 80 is an in vitro inhibitor of P-glycoprotein. It concluded that PS 80 may influence in vivo absorption of P-gp substrates, and this could be translated to human applications .
It is used as a solubilizer, antimicrobial preservative and disinfectant .
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