Emulsifying agent preparation of emulsion Stability problem in emulsion pharmaceutics
Biphasic Liquid Dosage Forms
• Emulsion
• Emulsifying agents
• Preparation Of Emulsion
• Stability problems In emulsion and methods pharmaceutical chemistry
Emulsifying agents (also called emulsifiers or emulgents) are substances comprising both oil-soluble hydrophobic (nonpolar) and water-soluble hydrophilic (polar) portions that act as a stabilizer of the droplets (globules) of the internal phase of an emulsion y inhibiting flocculation, creaming, and coalescence, The key goal of an emulsifier is to form condensed films (either monomolecular or multimolecular films or solid particle films) around the droplets of the dispersed phase. The key goal of an emulsifier is to form condensed films (either monomolecular or multimolecular films or solid particle films) around the droplets of the dispersed phase. An insufficient concentration of emulsifiers will do little to prevent coalescence. Increasing the emulsifier concentration above an optimum level attains little in terms of increased stability
An emulsifying agent is a chemical compound that permits the mixing of two or more immiscible liquids. In addition to promoting the blending of dissimilar compounds, emulsifying agents are also responsible for keeping the mixture stable, i.e., preventing the individual elements from separating. For example, while oil and water typically do not mix, they can be combined into a homogeneous mixture by utilizing an emulsifying agent.
An emulsifying agent is also known as an emulsifier.
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Preparation Of Emulsions Stability Problems In Emulsions And Methods To Overcome Pharmaceutics B Pharma 1st Semester