Quillaia

Quillaia

Quillaia is the milled inner bark or small stems and branches of the soapbark ("Quillaja saponaria", Molina). 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; highly purifed quillaia is used to enhance vaccines. Other compounds in the extract include tannins, polyphenols, and calcium oxalate.

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. It also applied in some "natural" spray adjuvant formulations for agricultural uses.

In particular the saponins from Quillaja saponaria are used in veterinary vaccines as adjuvant (e.g., foot-and-mouth disease vaccines, helping to enhance the immune response). Initially the crude fraction was used. Later on a purified mixture, called Quil A was developed by Dalsgaard which was more effective and caused less local side reactions. Still Quil A is a mixture of more than 25 different saponin molecules. One of them, the saponin QS21, is being investigated for possible beneficial adjuvant effects on the human immune system.

External links

* [http://www.inchem.org/documents/jecfa/jecmono/v48je03.htm WHO report]


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  • Quillaia — (Q. Molin), Pflanzengattung aus der Familie der Rosaceae Spiraceae; Arten in Südamerika, z.B. Q. saponaria, deren Rinde große Mengen von Saponin enthält u. in Südamerika als Surrogat der Seife angewendet wird …   Pierer's Universal-Lexikon

  • Quillaia — Quillāia Mol., Pflanzengattg. der Rosazeen, Bäume des trop. Südamerika. Von Q. saponarĭa Mol., in Peru und Chile, wird die saponinhaltige Rinde (Quillaja , Seifen , Panamarinde, Panamaholz) als Waschmittel und arzneilich in Form der Abkochung als …   Kleines Konversations-Lexikon

  • quillaia — [kwi lā′yə, kwilā′jəki lī′ə, kwi lā′yə] n. 〚Sp < the Araucanian native name〛 SOAPBARK (sense 1): also quillai [ki lī′] or quillaja [kwi lā′yə, kwilā′jə] * * * …   Universalium

  • quillaia — [kwi lā′yə, kwilā′jəki lī′ə, kwi lā′yə] n. [Sp < the Araucanian native name] SOAPBARK (sense 1): also quillai [ki lī′] or quillaja [kwi lā′yə, kwilā′jə] …   English World dictionary

  • quillaia — quil·là·ia s.f. TS bot. pianta arborea o arbustiva del genere Quillaia, diffusa nelle regioni tropicali dell America e dell Asia, provvista di una corteccia che per l elevato contenuto di saponina viene impiegata per lavare i tessuti | con iniz.… …   Dizionario italiano

  • Quillaia — Saponin Sap o*nin, n. [L. sapo, onis soap: cf. F. saponine.] (Chem.) A poisonous glucoside found in many plants, as in the root of soapwort ({Saponaria}), in the bark of soap bark ({Quillaia}), etc. It is extracted as a white amorphous powder,… …   The Collaborative International Dictionary of English

  • Quillaia bark — Quil*la ia bark (Bot.) The bark of a rosaceous tree ({Quillaja Saponaria}), native of Chile. The bark is finely laminated, and very heavy with alkaline substances, and is used commonly by the Chileans instead of soap. Also called {soap bark}.… …   The Collaborative International Dictionary of English

  • quillaia — noun an extract from the bark of the soapbark tree, Quillaja saponaria, used as a food additive Syn: E999, foaming agent …   Wiktionary

  • quillaia — quil·la·ia (kwĭ laґyə) the dried inner bark of Quillaja saponaria, formerly used in medicine for its local irritant action. Its chief constituent is quillaic acid, and it is used as an emulsifier and surfactant. Called also soap bark,… …   Medical dictionary

  • quillaia — qui·llaia …   English syllables

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