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Why do emulsions require an emulsifying agent how does it work?

Emulsifying Agents. These are surfaceactive agents that are added to the emulsionsto stabilize the two phases. It acts on the interface and increasesthe kinetic stability of an emulsion so that the size of thedroplets does not change significantly with time, thusstabilizing the emulsion.


Just so, why do emulsions require an emulsifying agent?

An emulsifying agent (emulsifier)is a surface-active ingredient which adsorbs at the newlyformed oil–water interface during emulsionpreparation, and it protects the newly formed droplets againstimmediate recoalescence.

Furthermore, how does an emulsifier work? To prevent the mixture from separating substances calledemulsifiers can be added. These help to form and stabilisethe emulsions, preventing or slowing the water and fat/oil fromseparating. Emulsifier molecules work by having ahydrophilic end (water-loving) and hydrophobic end(water-hating).

Also, what are the uses of emulsions?

Emulsions are commonly used in many majorchemical industries. In the pharmaceutical industry, they areused to make medicines more palatable, to improveeffectiveness by controlling dosage of active ingredients, and toprovide improved aesthetics for topical drugs such asointments.

What is a good example of an emulsifier?

Emulsifier. Emulsifiers are often used infood technology, for example to keep products moist orgreasy (such as cakes and bread) or to mix fat-soluble substanceswith water, such as margarine. An example of an emulsifierin food is lecithin. Lecithin is in egg yolk and is used forexample in making mayonnaise.


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