RESUMEN
The dried fruits of Silybum marianum [L.] Gaertn [Compositae] contain silymarin, an isomeric mixture of flavonolignans. Silymarin acts as a strong anti -hepatotoxic. This fruits contains a high amount of oil The objective of this study was to determine total lipid content, fatty acid composition and content of different kind of tocopherols in seed oils of S. marianum Fatty acid compositon and a-, y- and ?-tocopherol [vitamin E] content from seeds of Silybum maianum were investigated by gas chromatography and high performance liquid chromatography methods. and Conclusion: 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%], arashidic acid [4.11%], eicozantoic acid [0.088%] and behenic acid [2.6%] were determined a-, y- and tocopherol content were around 563.157, 88.87 and 163.791 mg Kg -1 DW respectively that could be a natural good sources of antioxidant