Are you trying to know what are the oxidation products ?because there are number of oxidation can occur such as primary and secondary oxidation. Primary oxidation results into hydro peroxide followed by secondary oxidation into aldehydes. Aldehydes and alkenals are known to be cause the rancidity of oils.
In your case if your particularly looking for Carbon 9 of trilonolien, the oxidative products would be a dicarboxylic acid known as azalaic acid from hydrolysis of triglycerides followed by oxidations.