Octenyl Succinic Anhydride (OSA) is a derivative of succinic anhydride that’s chemically bonded to an octenyl group. This modification grants OSA amphiphilic properties, allowing it to act as a surfactant. In simpler terms, OSA can bridge the gap between water-soluble and oil-soluble substances. This makes it invaluable in food applications where it’s used as an emulsifier, helping to stabilize mixtures of oils and water. Additionally, in the pharmaceutical and cosmetic industries, OSA-modified starches improve the solubility of active ingredients, ensuring better dispersion and absorption. Its unique molecular structure also enhances the compatibility of natural polymers with other substances, broadening their application range.