Results
First of all, we conducted an experiment to see if the fragrance of vanilla masks the odor of E. coli.
40 µL of commercially available vanilla essence was added to the liquid medium in which E. coli was cultured to prepare a dilution series.
As a result, the odor of E.coli was suppressed by the fragrance of vanilla in the 1 to 10-fold diluted liquid media.
Also, the vanilla fragrance was emited stronger when autoclaved.