This invention discloses a method for preparing
crayfish infusion, belonging to the field of food
seasoning technology. The method includes the following steps: first, pulverizing spices and simultaneously preparing a basic infusion; mixing a portion of the pulverized spices with the basic infusion and boiling it; after cooling, adding a compound
enzyme preparation consisting of
neutral protease and
flavor protease for incubation and
enzymatic hydrolysis; after
hydrolysis, heating to inactivate the
enzyme; after cooling, adding food-grade
chitosan, adjusting the pH with
citric acid and incubating for cross-linking, then heating to solidify to obtain a modified basic infusion; sequentially adding spice oil,
porous starch, and
lime juice to the modified basic infusion, simultaneously performing ultrasonic treatment and stirring; finally, cooling, filtering, and instantaneous sterilization to obtain the finished product. This invention can effectively improve the
flavor harmony and richness of the infusion, while significantly enhancing the storage stability of the
system, reducing
oil separation and
flavor loss, and ensuring stable product quality throughout its
shelf life.