Glyceride

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Glycerol
Glycerol
Fatty acid
Fatty acid
Triacetin, the simplest possible fat
Triacetin, the simplest possible fat

Glycerides are esters formed from glycerol and fatty acids.

Glycerol has three hydroxyl functional groups which can be esterified with one, two or three fatty acids to form monoglycerides, diglycerides and triglycerides.

Vegetable oils and animal fats contain mostly triglycerides, but are broken down by natural enzymes (lipases) into mono- and diglycerides and free fatty acids.

Soaps often contain glycerides as well. Glycerol is a product that can soften dehydrated skin by absorbing moisture from the air. In fact, if 100% glycerol were left exposed to normal air, in 10 to 12 hours it would become 80% glycerol and 20% water by absorbing 1/5 of its weight in water.

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Lipids: glycerides

Monoglyceride - Diglyceride - Triglyceride (Triacetin, Trimyristin, Triolein)

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