Preparation method of hawthorn extract for cigarettes and application of hawthorn extract in cigarettes

The invention discloses a preparation method of a hawthorn extract for cigarettes and application of the hawthorn extract in the cigarettes. The preparation method of the extract comprises the following steps: mixing rutin and water, and sterilizing; the method comprises the following steps: respectively inoculating a culture medium with pseudomonas aeruginosa ZY-03, bacillus subtilis SMXP-58, micrococcus ZY02 and pichia membranaefaciens to form a seed solution; the preparation method comprises the following steps: mixing seed solutions of pseudomonas paraxanthomonas ZY-03 and bacillus subtilis SMXP-58, inoculating the mixture into a rutin solution, and fermenting to obtain a fermentation product 1; grinding dried hawthorn, mixing with water, heating, filtering, and mixing with the fermentation product 1 to obtain a mixed solution; mixing the four seed solutions and inoculating the mixed solution with the mixed solution; and performing reflux extraction with an organic solvent after fermentation, performing c