Oleoresin

Oleoresins are semi-solid extracts composed of resin and essential or fatty oil. They are obtained by evaporating relevant solvents. The oleoresin of conifers is known as crude turpentine or gum turpentine, which consists of oil of turpentine and rosin.

Properties

Processing of oleoresins is conducted on a large scale, especially in China.

Use

Oleoresin capsicum is commonly used as a basis for pepper sprays. There are also uses known in the manufacture of soaps of cosmetics, as well as coloring agents for foods. A well-known pipe thread sealant, Rectorseal #5, is stated to have an "oleoresinous base".