The invention discloses a preparation method of a tobacco substrate realizing non
combustion after being heated and containing microcapsule. The preparation method comprises the following steps: selecting tobacco, and preparing tobacco
essential oil; diluting the obtained tobacco
essential oil by adopting an atomizing agent, thus obtaining a microcapsule core; respectively weighing
gelatin and Arabic gum, and respectively adding
gelatin and Arabic gum into water, thus obtaining gum solutions; weighing the microcapsule core, adding the microcapsule core into the
gelatin solution, carrying out emulsifying, adding the Arabic gum solution into the emulsified liquid, and carrying out emulsifying again, thus obtaining new emulsified liquid; adjusting the pH of the emulsified liquid; adding
glutamine transaminase into the emulsified liquid, thus obtaining cured microcapsule, washing the microcapsule, filtering the microcapsule, and carrying out
freeze drying to obtain
solid microcapsule
powder; and adding the
solid microcapsule
powder into water for dispersing, uniformly
coating a tobacco substrate body with the dispersion liquid, and carrying out
drying to finally obtain the tobacco substrate containing the microcapsule. The tobacco substrate provides good satisfaction for consumers, and is large in
smoke amount, high in
aroma concentration, and remarkable in tobacco intrinsic scent, and thus the quality of cigarettes realizing non
combustion after being heated is promoted.