The tocopherol and tocotrienol composition of P. canariensis seed oil are given in Table 5. The major tocols were α-tocotrienol (α-T3), γ-tocopherol (γ-T) and γ-tocotrienol (γ-T3) 34.01, 10.30 and 4.63 mg/100 g, respectively. The α-tocotrienol is 66% of total tocols. P. canariensis seed oil is a rich source of α-T3 similar to the palm oil. The α-, β- and γ-tocopherol have similar values 0.61, 0.92 and 1.03 mg/100 g, respectively. The level of tocols in P. canariensis seed oil (51.54 mg/100 g) is very close to that of grape seed oil (52.2 mg/100 g). It should be noted that of P. canariensis seed oil contains also a quantity of α-tocopherol acetate that is another form of vitamin E. It is more stable to light and oxygen than tocopherol. α-Tocopherol acetate is also present in Spanish broom oil, sunflower oil and olive oil.