The present invention provides a method for manufacturing the milk
powder. The method comprises the following steps: (1) pretreating
raw milk; (2) dissolving ingredients in water, fully stirring them evenly to obtain an ingredient solution; (3) mixing the treated
raw milk and the ingredient solution uniformly to obtain a
mixed solution; (4) homogenizing the
mixed solution, and then conducting sterilization and concentration to obtain concentrated milk; and (5) then adding
glutamine transaminase accounting for 0.02-0.08% of the
mass of the concentrated milk, stirring the substances evenly, and keeping reaction, and then performing
spray drying to obtain milk
powder. The method provided by the invention uses
glutamine transaminase to replace a
thickening agent, and
protein reacts to generate a grid structure, so that after
brewing the milk
powder, the milk liquid has suspension function, the anti-
precipitation effect of the milk liquid obtained by
brewing of the milk powder can be significantly improved. By adding
sodium citrate, the stability of concentrated milk can be increased, the action time of
glutamine transaminase is shortened, and its action effect is increased. The method provided by the invention provides a new solution for
precipitation prevention of milk powder.