The invention relates to a preparation method of a moistening and
flavor enhancing additive agent comprising two preparation
modes, wherein the mode 1 comprises the steps of firstly respectively preparing and obtaining a special tobacco extract, a
seaweed extract and a
vanilla extract; then mixing the special tobacco extract, the
seaweed extract and the
vanilla extract according to a ratio of 1:6-10:1-5, after decoloration by an
activated carbon column, concentrating an
effluent into a viscous fluid, thereby obtaining the moistening and
flavor enhancing additive agent; and the mode 2 comprises the steps of respectively washing the seaweed and the vanilla, crushing after
drying, mixing the special
tobacco leaf fragment, the seaweed
powder and the vanilla
powder according to the ratio of 1:2-6:0.5-4, adding water, heating and reflxuing, then adding
acetone, heating and refluxing, cooling, filtering, adding water or
ethanol solution to a residue, continuously heating, refluxing and extracting, cooling, filtering and decoloring a concentrated solution through the
activated carbon column after concentrating a filtrate, continuously concentrating the
effluent into the viscous fluid, thereby obtaining the moistening and
flavor enhancing additive agent. The moistening and flavor enhancing additive agent prepared by the invention not only can obviously keep the
moisture of the tobacco shred, but also can enrich the flavor of the cigarette, and improve the comfortable degree of the cigarette. The cost of the invention is low, the technical process is simple, the
raw material is easy to get, and the popularization and the application are convenient.