上游究更大学 1.Fatty Acids Are Key Constituents of Lipids SHANGHAI JIAO TONG UNIVERSITY Fatty acids are long hydrocarbon chains of various lengths and degrees of unsaturation terminated with carboxylic acid groups. 脂肪酸可以有不同长度、不同饱和度，但都有长烃链和羧基。 Palmitate (ionized form of palmitic acid) 棕榈酸（软脂酸） Oleate (ionized form of oleic acid) 油酸 Figure 12.2 Structures of two fatty acids.Palmitate is a 16-carbon, saturated fatty acid,and oleate is an 18-carbon fatty acid with a single cis double bond.1. Fatty Acids Are Key Constituents of Lipids Figure 12.2 Structures of two fatty acids. Palmitate is a 16-carbon, saturated fatty acid, and oleate is an l8-carbon fatty acid with a single cis double bond. 棕榈酸（软脂酸） 油酸 Fatty acids are long hydrocarbon chains of various lengths and degrees of unsaturation terminated with carboxylic acid groups. 脂肪酸可以有不同长度、不同饱和度，但都有长烃链和羧基