what type of fatty acids make up oils
The major fatty acids in olive oil triacylglycerols are: 1  Oleic Acid (C18:1), a monounsaturated omega-9 fatty acid. 2  It makes up 55 to 83% of olive oil. 3  Linoleic Acid (C18:2), a polyunsaturated omega-6 fatty acid that makes up about 3.5 to 21% of olive oil.