The invention belongs to the field of
food processing, and particularly relates to a method for efficiently alkalizing cocoa
powder, which specifically comprises the following steps: completely mixing cocoa
powder with water to obtain a cocoa
powder aqueous solution, adding a NaOH solution to adjust the pH value of the
system to 6.8-9.2 for alkalization, then immediately heating by using microwaves at the
microwave heating power of 380-700W for 5-15min, and cooling to
room temperature to obtain the cocoa powder. And after heating is completed, immediately putting the cocoa powder into an ice-water bath for cooling, and then performing
freeze drying to finally obtain alkalized cocoa powder. The alkalized cocoa powder prepared by the method is brown in color, more phytochemicals (epicatechin,
catechin,
theobromine and the like) are reserved, the
oxidation resistance is higher, the
flavor is better, and the alkalized cocoa powder can be widely applied to the
food processing fields of drinks, baking, desserts, candy making and the like.