Saponins (Latin sapon, 'soap' + -in, 'one of') are bitter-tasting, usually toxic plant-derived secondary metabolites. They are organic chemicals that become foamy when agitated in water and have high molecular weight. They are present in a wide range of plant species throughout the bark, leaves, stems, roots and flowers but particularly in soapwort (genus Saponaria), a flowering plant, the soapbark tree (Quillaja saponaria), common corn-cockle (Agrostemma githago L.), baby's breath (Gypsophila spp.) and soybeans (Glycine max L.). They are used in soaps, medicines (e.g., drug adjuvants), fire extinguishers, dietary supplements, steroid synthesis, and in carbonated beverages (for example, being responsible for maintaining the head on root beer). Saponins are both water and fat soluble, which gives them their useful soap properties. Some examples of these chemicals are glycyrrhizin (licorice flavoring) and quillaia (alt. quillaja), a bark extract used in beverages.
Root beer in the context of Soft drink
A soft drink (see § Terminology for other names) is a class of drink containing no alcohol, usually (but not necessarily) carbonated, and typically including added sweetener. Flavors can be natural, artificial or a mixture of the two. The sweetener may be a sugar, high-fructose corn syrup, fruit juice, a sugar substitute (in the case of diet sodas), or some combination of these. Soft drinks may also contain caffeine, colorings, preservatives and other ingredients. Coffee, tea, milk, cocoa, and unaltered fruit and vegetable juices are not considered soft drinks.
Soft drinks are called "soft" in contrast with "hard" alcoholic drinks and their counterparts: non-alcoholic drinks. Small amounts of alcohol may be present in a soft drink, but the alcohol content must be less than 0.5% of the total volume of the drink (ABV) in many countries and localities if the drink is to not be considered alcoholic. Examples of soft drinks include lemon-lime drinks, orange soda, cola, grape soda, cream soda, ginger ale and root beer.
View the full Wikipedia page for Soft drinkRoot beer in the context of Methyl salicylate
Methyl salicylate (oil of wintergreen or wintergreen oil) is an organic compound with the formula C8H8O3. It is the methyl ester of salicylic acid. It is a colorless, viscous liquid with a sweet, fruity odor reminiscent of root beer (in which it is used as a flavoring), but often associatively called "minty", as it is an ingredient in mint candies. It is produced by many species of plants, particularly wintergreens. It is also produced synthetically, used as a fragrance and as a flavoring agent.
View the full Wikipedia page for Methyl salicylateRoot beer in the context of Ice cream float
An ice cream float, soda float or ice cream soda, also known as a spider in Australia and New Zealand, is a chilled beverage made by adding ice cream to a soft drink or to a mixture of flavored syrup and carbonated water.
When root beer and vanilla ice cream are used, the beverage is referred to as a root beer float (United States). A close variation is the coke float, which is made using cola.
View the full Wikipedia page for Ice cream float