Method for preparing roasted fragrant and sweet components of red dates and application of roasted fragrant and sweet components of red dates to pipe tobacco

The invention belongs to the technical field of tobacco spice, and particularly relates to a method for preparing roasted fragrant and sweet components of red dates. The method comprises the steps that a, the red dates are washed, decored and dried; b, ethanol extraction is carried out; c, membrane separation is carried out to remove macromolecular matter; d, the materials pass through a macroporous adsorption resin chromatographic column to separate and acquire effective ingredients. The roasted fragrant and sweet components of the red dates contain rich monosaccharide, disaccharide and multiple roasted fragrance and sweet ingredients (furan, furanone, pyrone, cyclopentenone and other compounds), after the roasted fragrant and sweet components of the red dates are applied to the cut pipe tobacco, joyful roasted fragrant and sweet smells can be given to the pipe tobacco, the remaining taste is sweet and comfortable, and the pipe tobacco meets the favor of tobacco product consumers in China better. According to the preparation process of the roasted fragrant and sweet components of the red dates, ingredients having side effects on smoking of the pipe tobacco in red date crude extract can be effectively removed, two kinds of effective ingredients are separated and enriched, and the optimal application effect is achieved through effective blending of flavorists. The preparation process is simple and easy to operate, the production process is economical and environmentally friendly, and the method is suitable for being applied to large-scale industrial production.