Preparing immobilised rennet type enzymes for cheese mfr. - using synthetic resin of specified pore dia.

摘要

The process using an industrial enzyme of the rennet type by adsorption on an insoluble organic support comprises fixing the rennet in soln. on a macroporous adsorbing synthetic resin of food quality, the average pore dia. of which is above 500 angstroms. The prod. is used in cheese mfr. to treat milk continuously in a fixed bed column or in a fluidised bed. The process is simple giving a prod. which is both stable in enzymatic activity and is satisfactory for food use. The average pore dia. is pref. >=1,300 angstroms. Pref. resins are cation exchange and strongly acid such as styrene/dirinyl benzene capolymer, specifically with 20% divinyl benzene and SO3-as the functional gp.; or a phenalic resin.