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Encyclopedia > E999

Quillaia is the milled inner bark or small stems and branches of the soapbark Quillaja saponaria Molina (family Rosaceae). The extract of quillaia is used in the manufacture of food additives (E number 999). It is used as a humectant in baked goods, frozen dairy products, and puddings and as a foaming agent in soft drinks. Other names include China bark extract, Murillo bark extract, Panama bark extract, Quillai extract, Quillaia extract, Quillay bark extract, Soapbark extract. It contains a high concentration of saponins which is increased by processing and highly purifed quillaia is used to enhance vaccines. Other compounds in the extract include tannins, polyphenols, and calcium oxalate. For other meanings of bark, see Bark (disambiguation). ... Soapbark (Quillaja saponaria Molina (family Rosaceae)) is a large evergreen with shiny, leathery leaves and a thick bark, native to China and several South American countries, including Bolivia, Chile, and Peru. ... Subfamilies Rosoideae Spiraeoideae Maloideae Amygdaloideae or Prunoideae The Rosaceae or rose family is a large family of plants, with about 3,000-4,000 species in 100-120 genera. ... Food additives are substances added to food to preserve it, or to improve its flavour and appearance. ... For the mathematical constant see: E (mathematical constant). ... A humectant is a hygroscopic substance that is used as a food additive. ... A foaming agent is a material that will decompose to release a gas under certain conditions (typically high temperature), which can be used to turn a liquid into a foam. ... A soft drink is a drink that contains no alcohol. ... Saponins are glycosides of steroids, steroid alkaloids (steroids with a nitrogen function) or triterpenes found in plants, especially in the plant skins where they form a waxy protective coating. ... A vaccine is an antigenic preparation used to establish immunity to a disease. ... Tannins are astringent, bitter-tasting plant polyphenols that bind and precipitate proteins. ... Polyphenols are a group of plant chemical substances, characterized by the presence of more than one phenol group per molecule. ... Calcium oxalate is a chemical compound that forms needle-shaped crystals. ...


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