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Related to saponin: tannin


see soap plantsoap plant,
any of various plants having cleansing properties. A few are of commercial importance, but most soap plants are used locally, as in early times, for toilet and laundry purposes.
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any of the complex organic nonnitrogenous compounds of the plant glycoside group. Upon acid or enzymatic hydrolysis, saponins are split into monosaccharides (one or several molecules) and a noncarbohydrate part called the aglycon (sapogenin). Depending on the chemical structure of the aglycon, a distinction is made between triterpenoid saponins, in which the aglycons are triterpenoids, and steroid saponins, in which the aglycons are steroids. Uronic acids may also be components of saponins.

Saponins are found mainly in plants (in the Rosaceae, Caryo-phyllaceae, and Sapindaceae families) and in certain marine animals (starfish and holothurians). Saponins are characterized by the capacity to give, like soaps, collodial solutions that readily form foams. With phenols and higher alcohols, for example, sterols, saponins form stable molecular compounds that are used for the separation, purification, and quantitative determination of saponins themselves and such sterols as cholesterol.

Saponins have a bitter, sharp taste. Upon intravenous injection, they are highly toxic; extremely low concentrations lead to the destruction of erythrocytes (hemolysis). However, saponins are not toxic upon ingestion because they either are not absorbed or else are destroyed in the intestines.

Steroid saponins are used as an inexpensive raw material for the production of steroid hormones. As foaming agents, saponins are used in charging foam fire extinguishers and in the production of soft drinks and beer. Saponins are contained in many medicinal plants (soapbark, licorice, jalap, senega root), which are used as expectorants and diuretics. Espin and other saponins of the horse chestnut, as well as aralosides from the Japanese angelica tree, have a cardiotonic effect.


Lekarstvennye sredstva iz rastenii. Edited by A. D. Turova. Moscow, 1962.
Fieser, L., and M. Fieser. Steroidy. Moscow, 1964. (Translated from English.) T. V. Iliukhina


(organic chemistry)
Any of numerous plant glycosides characterized by foaming in water and by producing hemolysis when water solutions are injected into the bloodstream; used as beverage foam producer, textile detergent and sizing, soap substitute, and emulsifier.
References in periodicals archive ?
Potato blight treatment plots at Henfaes, Bangor, part of research to find a bio-pesticide using saponin from ivy
Saponins are glycosylated compounds with natural detergent activity, which are found in C.
In the present study, we prepared high purity saponin extract from TFGs and designed a systematic mechanism study in vivo.
The bitter polar components of the kernels, the saponins, presumably remain in the water phase.
Saponins, as many of you probably realize, are chemical components found in many plants.
The percentage and yield of saponin from tea seeds is also better than most of the other plant sources, which range from 10% to 28% depending on the plant variety [6].
Additionally, saponin extracted induced intrinsic apoptosis via up-regulation of caspase-3 and caspase-9.
Phytochemical screening of active plant extracts were performed according to the standard method for the qualitative analysis of various Phytochemicals such as alkaloids, saponins, flavonoids, tannins, steroids and Terpenoids [21,14,5,16].
5) Sample of total saponin for HPLC analysis: A final solution of 4.
It is possible because the chemical substances contained in salam leaf include saponin, alkaloids, flavonoids, tannin, and eugenol.
It has been established that a majority of the saponin activities are the consequence of their interaction with cell membrane [[DELTA].