Banana essence
Banana essence is a highly concentrated flavour extracted from bananas onto an alcohol base or synthesised artificially using chemical compounds. Artificial essence is simply chemical mixtures that mimic a natural flavor in some way. Anything that we smell has to contain some sort of volatile chemical -- a chemical that evaporates and enters a person's nose. Banana essence has just one or a few dominant chemical components (usually esters) that carry the bulk of the taste/smell signal.