Salt-tolerant bacillus and application thereof in degradation of carotenoid

The invention relates to the technical field of microorganisms and biology, in particular to a salt-tolerant bacillus and application thereof in degradation of carotenoid. The salt-tolerant bacillus is preserved in the China General Microbiological Culture Collection Center on November 22, 2023, and the preservation number of the salt-tolerant bacillus is CGMCC (China General Microbiological Culture Collection Center) No. 29097; the address of the preservation unit is Institute of Microbiology, Chinese Academy of Sciences, No.3, No.1 Yard, Beichen West Road, Chaoyang District, Beijing, and the postal code is 100101; the preparation method comprises the following steps: classifying and naming: bacillus halotolans; meanwhile, the invention provides application of the strain to degradation of carotenoid in tobacco leaves, degradation of the carotenoid in the tobacco leaves can be effectively promoted, and the content of farnesyl acetone, methyl heptenone, megastigmatrienone and other substances in the tobacco le