Tocopherols, antiradical activity and fatty acids in seeds of Silybum marianum (L.) gaerth

Abstract

Antiradical activity, α-, γ-, δ-tocopherol (vitamin E) content and fatty acid composition from seeds oil of Silybum maianum were investigated by using DPPH radical, high performance liquid chromatography and gas chromatography methods. Total lipid percentage was approximately 25% and nine fatty acids including; palmitic acid (8.25 %), palmeotic acid (0.07 %), Stearic acid (6.67 %), oleic acid (31.58 %), Isomer oleic acid (0.53 %), linoleic acid (45.36 %), linolenic acid (0.87 %), arachidic acid (4.11 %), eicozantoic acid (0.088 %) and behenic acid (2.6 %) were determined. α-, γ- and δ - tocopherol content were around 563.157, 88.87 and 163.791 mg Kg-1 DW respectively and antiradical activity (IC 50)was about 0.071 mg ml-1 DPPH. This oil could be a natural good sources of oil and antioxidant. © 2008 Springer-Verlag.