Roxburgh rose refined extract, preparation method thereof and application of roxburgh rose refined extract in field of reconstituted tobacco

The invention provides a roxburgh rose refined extract, a preparation method thereof and application of the roxburgh rose refined extract in the field of reconstituted tobacco. The preparation method of the roxburgh rose refined extract comprises the following steps: pretreatment of raw materials; extracting and purifying; performing concentration; performing enzymolysis on the roxburgh rose syrup; freezing and standing; adsorbing and purifying; performing Maillard reaction: taking enzymolysis supernate, adding alkali liquor to adjust the pH value to be alkaline, stirring in a water bath, and concentrating under reduced pressure to obtain roxburgh rose alkali paste; sequentially adding a stabilizer, amino acid and sugar into the rosa roxburghii tratt alkali paste, carrying out stirring reaction under a high-temperature condition, and cooling after the reaction is finished, so as to obtain the refined rosa roxburghii tratt extract. Rosa roxburghii tratt is used as a raw material, the flavor of the rosa roxburg