Abstract

In this article, various adsorbents were applied to the bleaching process of sunflower oil and determined that nanocarbon has highest adsorption properties among them. As a result of the analyzes made before and after the bleaching process, isotherms have been established and Freundlich isotherm has been found to be more suitable for these processes. It was determined that n and K_f values changed depend on temperature, time and dosage. 1/n values were less than 1 and greater than zero indicating favorable adsorption with nanocarbon. In addition, nanocarbon showed the highest adsorption at 80°C, while the other adsorbents showed same result at 100°C temperature. 1% of adsorbent A1, 80°C temperature and 30 minutes contact time are optimal values in sunflower oil bleaching process. Thus, these values indicate that the adsorption of unwanted color pigmentsand other residues from sunflower oil using nanocarbon can be attributed to physico-chemical adsorption process.