The bacterial succession and its role in flavor compounds formation during the fermentation of cigar tobacco leaves.

Fermentation is the key process required for developing the characteristic properties of cigar tobacco leaves, complex microorganisms are involved in this process. However, the microbial fermentation mechanisms during the fermentation process have not been well-characterized. This study investigated the dynamic changes in conventional chemical composition, flavor compounds, and bacterial community during the fermentation of cigar tobacco leaves from Hainan and Sichuan provinces in China, as well as the potential roles of bacteria.

Microbial community and chemical composition of cigar tobacco ( L.) leaves altered by tobacco wildfire disease.

Tobacco wildfire disease caused by pv. is one of the most destructive foliar bacterial diseases occurring worldwide. However, the effect of wildfire disease on cigar tobacco leaves has not been clarified in detail.

Identification of Cyclic Dipeptides and a New Compound (6-(5-Hydroxy-6-methylheptyl)-5,6-dihydro-2-pyran-2-one) Produced by against .

As an important microbial resource, , especially have important application values in medicine and biotechnology. SYH3 was isolated from soil samples in tomato-growing areas and showed good inhibitory effects on in tomato. To obtain pure active compounds, SYH3 fermentation broth was subjected to XAD-16 macroporous resin and silica gel column chromatography.