Efficiency of Rice Bran for Removal of Pretilachlor and Esprocarb in Artificial Gastric Fluid

Abstract

Rice bran was found to effectively adsorb pesticides in artificial gastric fluid. Equilibrium adsorption isotherms conformed to the Freundlich type (log-log linear). Pretilachlor and esprocarb were successfully removed in artificial gastric fluid with an average removal efficiency of 85.5% and 95.8%, respectively after 90 min when rice bran (10 g/l) was added to samples containing from 0.05 to 5 mg/l of pesticides. The removal of pesticides by rice bran was attributed to the uptake by intracellular particles called spherosomes.