ANALYSIS OF ADSORPTION AND KINETIC OF LIPASE ENZYME ON KAOLINITE

Abstract

The properties of the clay kaolinite as a support for enzyme immobilization were studied using the enzyme lipase. Lipases are biocatalysts of great importance due to their ability to catalyze diverse reactions. They are extensively used for the catalysis in organic solvents, which leads to multiple industrial applications. Studies have been done at different (pH 4,0- 10,0) and in the temperature range of 20-80 degrees C. Taking into the account the Lagergren first-order equation for adsorption kinetics, q(1) and k(1) values, are a measure of absorbance strength were obtained. The values adsorption enthalpy (Delta H-0), Gibbs free enthalpy (Delta G(0)) and adsorption entropy (Delta S-0) were thermodynamics parameters. These studies indicate that kaolinite is a valuable support for the simple adsorption of enzymes.