Fig. 5From: A multi-component reaction for covalent immobilization of lipases on amine-functionalized magnetic nanoparticles: production of biodiesel from waste cooking oilThe stability of free and MNPs-RML, MNPs-TLL and MNPs-CALB in the presence of 50% of methanol, ethanol and propanol. Incubation of each biocatalyst in 1 ml solution containing 25 mM sodium phosphate buffer (pH 7.0) and 50% of each solvent at 25 °C. The initial activity of each derivative was determined before incubation and set as 100%Back to article page