The invention discloses a tobacco source spice extraction method and application thereof. The method comprises the steps of extracting nonpolar, medium-weak polar, medium polar and strongly polar components. Low-order and waste tobacco source materials are closely related to corresponding cigarette raw materials, homology and homogeneity of tobacco source
flavor and cigarette products are achieved, and the method is suitable for actual requirements of perfuming and charging of the cigarette products. Fragrance components in the tobacco
source material are extracted by stages, natural
flavor which is homologous and homogeneous with cigarettes is provided, the original fragrance of the tobaccos can be increased, the fragrance amount is increased,
irritation is relieved, and the quality of the cigarettes is improved. The compound
flavor blending of the section flavor raw materials is suitable for blending of all-component tobacco source essence and also suitable for blending of all-component essence of other natural plants. According to the method,
tobacco leaf resources are efficiently utilized, the characteristic that the
boiling point of a CO2 critical fluid is low is utilized, thepurpose of selectively extracting and separating the tobacco flavor is achieved, waste is reduced, the process is simple and safe, the extraction efficiency is high,
aroma substances are comprehensively extracted, the quality is stable, loss of the
aroma substances can be avoided, and large-scale production can be achieved.