In this study, g-oryzanol-incorporated nanoparticles at varying solid lipid concentrations were prepared. Compritol 888 ATO, a partial triglyceride, was selected as lipid matrix. It is a blend of 12– 18% mono-, 52–54% di-, and 28–32% triglycerides of behenic acid (C22), a major fraction of fatty acid (>85%, w/w) (RadomskaSoukharev, 2007). It has been reported that SLN composed of glycerides with a heterogeneous composition possessed a less pronounced melting point depression (Bunjes et al., 1995).