Glycerol ester of wood rosin (or gum rosin), also known as glyceryl abietate or ester gum, is an oil-soluble

food additive Food additives are substances added to food to preserve flavor or enhance taste, appearance, or other sensory qualities. Some additives have been used for centuries as part of an effort to preserve food, for example vinegar (pickling), salt (salt ...

(

E number E numbers ("E" stands for "Europe") are codes for substances used as food additives, including those found naturally in many foods such as vitamin C, for use within the European Union (EU) and European Free Trade Association (EFTA). Commonly ...

E445). The food-grade material is used in foods, beverages, and cosmetics to keep oils in

suspension Suspension or suspended may refer to: Science and engineering * Suspension (topology), in mathematics * Suspension (dynamical systems), in mathematics * Suspension of a ring, in mathematics * Suspension (chemistry), small solid particles suspend ...

in water,WHO Food Additives Series 35: 836. Glycerol ester of wood rosin
/ref> and its name may be shortened in the ingredient list as glycerol ester of rosin. It is also used as an ingredient in the production of chewing gum and ice cream. To make the glycerol ester of wood rosin, refined wood rosin is reacted with

glycerin Glycerol (), also called glycerine in British English and glycerin in American English, is a simple triol compound. It is a colorless, odorless, viscous liquid that is sweet-tasting and non-toxic. The glycerol backbone is found in lipids known ...

to produce the glycerol

ester In chemistry, an ester is a compound derived from an oxoacid (organic or inorganic) in which at least one hydroxyl group () is replaced by an alkoxy group (), as in the substitution reaction of a carboxylic acid and an alcohol. Glycerides ar ...

. Glycerol ester of wood rosin is an alternative to

brominated vegetable oil Brominated vegetable oil (BVO) is a complex mixture of plant-derived triglycerides that have been reacted to contain atoms of the element bromine bonded to the molecules. Brominated vegetable oil is used primarily to help emulsify citrus-flavored ...

in citrus oil-flavored soft drinks. In some cases, both ingredients are used together.

References

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External links

Standard Terminology Relating to Pine Chemicals, Including Tall Oil and Related Products
Resins Food additives Adhesives E-number additives