MICRO REACTOR FOR SYNTHESIZING LACTULOSE AND METHOD OF SYNTHESIZING LACTULOSE

摘要

PURPOSE: A microreactor for synthesizing lactulose and a method for preparing lactulose are provided to cheaply produce lactulose which is one of prebiotics by a reaction with a substrate containing fructose and whey using beta-galactosidase immobilized on the microreactor and to enable biological serial production. CONSTITUTION: A microreactor (11) for synthesizing lactulose contains beta-galactosidase which reacts to a substrate containing whey and fructose and is immobilized by multi-wall carbon nanotubes as a linking group. A method for producing lactulose comprises the steps of: preparing a reaction solution containing beta-galactosidase, a buffer solution, and whey; injecting the reaction solution and a solution containing the multi-wall carbon nanotubes into the microreactor to immobilize beta-galactosidase onto the microreactor; and injecting the substrate into the microreactor.