Selectivity of β-Sitosterol Imprinted Polymers as Adsorbent

Abstract

Molecularly Imprinted Polymers (MIPs) are smart materials that have been used as adsorbents in separation processes of compounds because they have a memorial effect to a certain compound.In this research, MIP synthesized was used as adsorbent for β-sitosterol.The objective of the research was to know the selectivity of MIP in adsorbing -sitosterol.The concentrations of -sitosterol after adsorption and desorption were analyzed by a UV-Vis spectrophotometer and the selectivity test was analyzed by HPLC.Result showed that the MIP had high adsorption ability (q e ).The recovery of β-sitosterol from MIP for the adsorptiondesorption process was 68.48%.The MIP was very selective to β-sitosterol compared to cholesterol because it can adsorb β-sitosterol as many as 100%, whereas the adsorption of cholesterol was only 30.27 %.

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