Welcome to brain stuff front House, stuff works dot Com where smart happens. Hi Am Marshall Brain with today's question, how do artificial flavors work? Many of the processed foods that you buy today come with an ingredient label that lists artificial flavors as one of the key ingredients. Artificial flavors are 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. The evaporated chemical comes in contact with sensory cells in the nose and activates them. In the case of taste, a chemical has to activate the taste buds. Taste is a fairly crude sense. There are only four values that your tongue can register sweet, salty, sour, and bitter, while the nose consense thousands of different odors. Therefore, most artificial flavors have both a taste and a smell component.
Any natural flavor is normally quite complex, with dozens or hundreds of chemicals interacting to create the taste slash smell. But it turns out that many flavors, particularly fruit, flavors have just one or a few dominant chemical components that carry the bulk of the taste slash smell signal. Many of these chemicals are called ester's. For example, the esther called octal acetate is a fundamental component in orange flavor. The esther called isa amyl acetate is a fundamental component
of banana flavor. If you add these esters to a product, the product will taste to some degree like an orange or a banana. To make more realistic flavors, you add other chemicals in the correct proportions to get closer and closer to the real thing. You can do that by trial and error or by chemical analysis of the real thing. There are hundreds of chemicals known to be flavoring agents. It's interesting that they are normally mixed to create known taste.
People make artificial grape, cherry, orange, banana, apple, et cetera flavors, but it is very rare to mix up something that no one has ever tasted before. But it can and does happen occasionally. For example, juicy fruit gum is an example that's a made up flavor. For more on this and thousands of other topics, is it how stuff works? Dot com