The fatty acid composition of P. canariensis seed oil is presented in Table 3. The most important acid were oleic C18:1 (50.10%), linoleic C18:2 (19.23%), lauric C12:0 (10.24%), palmitic C16:0 (9.83%), myristic C14:0 (7.51%) and stearic C18:0 (1.66%), which together compose about 98.6% of the total fatty acids. The P. canariensis seed oil can be regarded as an oleic–linoleic oil because oleic acid was most abundant, followed by linoleic acid. It may show a similar property as Citrus aurantifolia citrus seed oil, rapeseed oil, Allig date seed oil and perah seed oil. The total unsaturated fatty acid of P. canariensis seed oil is 69.33% which can influence the physical properties of the membrane such as fluidity and permeability. Oleic acid is very important in nervous cell construction. It can be changed by organism into a set of compounds close to prostaglandins witch have an important role at the vessel level and for blood coagulation. Oleic fatty acid has fundamental role in cardiovascular diseases prevention. Linoleic fatty acid is indispensable for the healthy growth of human skin. It can be transformed by the organism into series of long fatty acids chains, witch are the precursors of eicosanoids. The total saturated fatty acid of P. canariensis seed oil is 29.24%, a value that renders it a strong resistant to oxidative rancidity