Saffron crocus spice as well as preparation method and application thereof

The invention relates to the technical field of tobacco flavors and fragrances, in particular to a saffron crocus flavor and a preparation method and application thereof.The preparation method comprises the following steps that saffron crocus is fermented through microorganisms to obtain saffron crocus microorganism fermentation liquor, and the saffron crocus flavor is obtained through alcohol extraction, filtration and concentration in sequence; preferably, the strain used in the microbial fermentation is saccharomyces cerevisiae, and the preservation number of the saccharomyces cerevisiae is CICCNO.1394. According to the preparation method of the saffron crocus spice, food source microorganism saccharomyces cerevisiae is used for fermenting saffron crocus, and microorganisms react with the natural raw material saffron crocus to form aroma substances or aroma component precursors, so that the feed liquid contains various aroma components, and the aroma is harmonious, unique and difficult to imitate; the saff