A fatty acid whose hydrocarbon chain is joined by a single bond (C-C) is called a saturated fatty acid. Its molecular symbol is CH3(CH2)nCOOH (n=18). It accumulates in the artery walls and stops blood flow. The result is heart disease. Such as lauric acid, palmitic acid, stearic acid, linoseric acid etc.
Properties of saturated fatty acids
(i) Carbon atoms of saturated fatty acids are joined by covalent bonds.
(ii) Its melting point is relatively high.
(iii) It is not an essential fatty acid.
(iv) It is high in animal fat.
(v) It remains solid at normal temperature (200C).