Isolation of thermophiles from broadleaf tobacco and effect of pure culture inoculation on cigar aroma and mildness.

Thermophilic members of the genus Bacillus isolated from fermented Connecticut broadleaf tobacco included eight strains of B. subtilis, five strains of B. coagulans, four strains of B. megaterium, and three strains of B. circulans. Some of these strains in pure single or mixed culture were employed to enrich the normal thermophile flora of "sweating" tobacco. Three strains of B. subtilis and one of B. circulans, either in single or multiple enrichment, caused the more rapid appearance of a pleasing aroma in Pennsylvania "Wrapper B" filler tobacco. These conclusions are based on subjective reactions of professional testers after numerous blindfold smoking tests.