Methylobacterium sp., and isolated culture method and application thereof

The invention relates to a methylobacterium sp., and an isolated culture method and application thereof, and the methylobacterium sp. WGM 16 is preserved in China Center for Type Culture Collection with the preservation number of CCTCC NO: M2019336. According to the technical scheme, a bacterial strain is obtained by separating tobacco sewage, conducting enriching by using sterol mother liquor, respectively conducting culturing by using a tobacco culture medium containing sterol as a carbon source and a seed culture medium taking sterol as a unique carbon source, and separating bacterial colonies with specific colors. By utilizing the bacterial strain, the sterol content in tobacco products can be effectively reduced, so that the content of harmful substances formed by sterol substances ina combustion process is reduced, and the purposes of reducing tar and harm of the tobacco products are achieved. 本发明涉及一株甲基杆菌、分离培养方法及其应用，甲基杆菌(Methylobacterium sp.)WGM 16，保藏于中国典型培养物保藏中心，保藏编号为CCTCC NO:M2019336。本技术方案的菌株通过分离烟草污水，