foaming agent

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Last updated

June 26, 2026

Quick Summary

A foaming agent is a substance used to create foam. Foam is a colloidal system where gas bubbles are dispersed in a liquid. These agents are crucial in various applications, including the production of concrete, mortar, and plaster.1

In food, proteins act as foaming agents in products like whipped cream, marshmallow, and meringue. For instance, egg whites are used to create meringue. Foams can also be stabilized by substances like soaps, detergents, and proteins to prevent bubbles from coalescing.2

Foaming is also a significant process in the plastics industry, creating materials known as foamed plastics or expanded plastics. These foams have lower thermal conductivity and greater rigidity for their weight compared to solid polymers, making them ideal for insulation and protective packaging. Common polymers foamed include polystyrene, polyurethane, and phenol formaldehyde.3

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food additive
Processing agents
The formation and stabilization of foam in a food product occurs by a similar mechanism, except that the oil phase is replaced by a gas phase. The compounds also act to inhibit the formation of ice or sugar crystals in foods and can be used to encapsulate flavor compounds.
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The formation and stabilization of foam in a food product occurs by a similar mechanism, except that the oil phase is replaced by a gas phase. The compounds also act to inhibit the formation of ice or sugar crystals in foods and can be used to encapsulate flavor compounds.
Read More

baking
Foams and sponges
The albumen of egg white, a protein solution, foams readily when whipped. The highly extended structure has little strength and must be supported during baking by some other protein substance, usually the gluten of flour. Because the small amount of lipids in…
Read More
The albumen of egg white, a protein solution, foams readily when whipped. The highly extended structure has little strength and must be supported during baking by some other protein substance, usually the gluten of flour. Because the small amount of lipids in…
Read More