glyceryl ester
Definition
Noun: A glyceryl ester is an ester formed from glycerol. This is a type of chemical compound where one or more of glycerol's three hydroxyl (-OH) groups have reacted with an acid (typically a fatty acid), resulting in an ester linkage. Glyceryl esters are the primary constituents of fats and oils.
Usage
Glyceryl esters are fundamental biochemical compounds. * Fats and oils in food are primarily composed of glyceryl esters of long-chain fatty acids. * The laboratory synthesis of a specific glyceryl ester confirmed the structure of the lipid. * The digestion of triglycerides, which are a type of glyceryl ester, begins in the small intestine.
Advanced Usage
- Biochemistry Context: The term is often used to specify the chemical nature of lipids, distinguishing them from other ester types. For example, "The membrane phospholipid contains a glyceryl ester backbone."
- Industrial Chemistry: In manufacturing, the hydrolysis or transesterification of glyceryl esters is a key process for producing soaps, biodiesel, and other derivatives.
Variants and Related Words
- Triglyceride (n): The most common type of glyceryl ester, where all three hydroxyl groups of glycerol are esterified with fatty acids. It is the main form of stored energy in animals and plants.
- Monoglyceride (n): A glyceryl ester where only one of glycerol's hydroxyl groups is esterified with a fatty acid. Often used as an emulsifier in food products.
- Diglyceride (n): A glyceryl ester where two of glycerol's hydroxyl groups are esterified with fatty acids.
Synonyms
- Acylglycerol (n): A more technical biochemical synonym for a glyceryl ester.
- Glyceride (n): A common, shorter synonym for glyceryl ester.
Related Phrases / Compound Terms
- Glyceryl esterase (n): An enzyme that catalyzes the hydrolysis of glyceryl esters.
- Glyceryl ester synthesis (n): The chemical or biochemical process of forming a glyceryl ester.
Noun
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an ester of glycerol
