The triglycerides of unsaturated fatty acid is classified as the:

The triglycerides are esters of glycerol with long chain fatty acids. Fatty acids always have an even number of carbons and may be saturated e.g, palmitic acid (C₁₅H₃₁COOH) and stearic acid (C₁₇H₃₅COOH) or unsaturated e.g., oleic acid (C₁₇H₃₃COOH) and linolenic acid (C₁₇H₂₉COOH).The three fatty acids in triglycerides may be same or different.Oils contains unsaturated fatty acids e.g., tristearin. Oils contain unsaturated fatty acids e.g., triolein. A-oleo-b-palmito-a'- stearin is an example of mixed glyceride.