
Bubble gum is a type of chewing gum, designed to be inflated out of the mouth as a bubble. == Bubble gum flavor == While there is a bubble gum "flavor" – which artificial flavorings called esters are mixed to obtain – it varies from one company to another. Esters used in synthetic bubblegum flavoring may include methyl salicylate, ethyl butyrate, benzyl acetate, amyl acetate or cinnamic aldehyde. A natural bubble gum flavoring can be produced by combining banana, pineapple, cinnamon, cloves, and wintergreen. Vanilla, cherry, lemon, and orange oil have also been suggested as ingredients. == Composition == In modern chewing gum, if natural rubber such as chicle is used, it must pass several purity and cleanliness tests. However, most modern types of chewing gum use synthetic gum based materials. These materials allow for longer lasting flavor, a better texture, and a reduction in tackiness. == History == In 1928, Walter Diemer, an accountant for the Fleer Chewing Gum Company in Philadelphia, was experimenting with new gum recipes. One recipe, based on a formula for a chewing gum called "Blibber Blubber", was found to be less sticky than regular chewing gum, and stretched more easily.