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fatty acid

DEFINITIONS OF: fatty acid

1

n any of a class of aliphatic monocarboxylic acids that form part of a lipid molecule and can be derived from fat by hydrolysis; fatty acids are simple molecules built around a series of carbon atoms linked together in a chain of 12 to 22 carbon atoms

Types:
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saturated fatty acid
a fatty acid whose carbon chain cannot absorb any more hydrogen atoms; found chiefly in animal fats
unsaturated fatty acid
a fatty acid whose carbon chain can absorb additional hydrogen atoms
trans fatty acid
a fatty acid that has been produced by hydrogenating an unsaturated fatty acid (and so changing its shape); found in processed foods such as margarine and fried foods and puddings and commercially baked goods and partially hydrogenated vegetable oils
monounsaturated fatty acid
an unsaturated fatty acid whose carbon chain has one double or triple valence bond per molecule; found chiefly in olive oil and chicken and almonds
polyunsaturated fatty acid
an unsaturated fatty acid whose carbon chain has more than one double or triple valence bond per molecule; found chiefly in fish and corn and soybean oil and safflower oil
heptadecanoic acid, margaric acid
a colorless crystalline synthetic fatty acid
ricinoleic acid
an oily fatty acid found in castor oil and used in soap
butanoic acid, butyric acid
an unpleasant smelling fatty acid found especially in butter
capric acid, decanoic acid
a fatty acid found in animal oils and fats; has an unpleasant smell resembling goats
caproic acid, hexanoic acid
a fatty acid found in animal oils and fats or made synthetically; smells like goats
caprylic acid
a fatty acid having a rancid taste; found in butter and other fats and oils
elaidic acid
a monounsaturated fatty acid that has the same structure as oleic acid except that it is a trans fatty acid; the major trans fatty acid in margarine and fried foods
elaeostearic acid, eleostearic acid
a crystalline unsaturated fatty acid
dodecanoic acid, lauric acid
a crystalline fatty acid occurring as glycerides in natural fats and oils (especially coconut oil and palm-kernel oil)
myristic acid, tetradecanoic acid
a saturated fatty acid occurring naturally in animal and vegetable fats
hexadecanoic acid, palmitic acid
a saturated fatty acid that is the major fat in meat and dairy products
octadecanoic acid, stearic acid
a waxy saturated fatty acid; occurs widely as a glyceride in animal and vegetable fats
Type of:
carboxylic acid
an organic acid characterized by one or more carboxyl groups
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