saponin(redirected from lithogenic s's)
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any of a group of glycosides widely distributed in the plant world; they are powerful surfactants, form durable foam when their watery solutions are shaken, and can dissolve erythrocytes even when highly diluted.
saponin/sap·o·nin/ (sap´o-nin) any of a group of glycosides widely distributed in plants, which form a durable foam when their watery solutions are shaken, and which even in high dilutions dissolve erythrocytes.
Any of various plant glycosides that form soapy lathers when mixed and agitated with water, used in detergents, foaming agents, and emulsifiers.
Etymology: L, sapo, soap
a soapy material found in some plants, especially soapwort (bouncing bet) and certain lilies. It is used in demulcent medications to provide a sudsy quality. Saponins can cause cell lysis (e.g., hemolysis). Natural saponins have largely been replaced by synthetic preparations.
a group of glycosides widely distributed in the plant world and characterized by (1) their property of forming durable foam when their watery solutions are shaken; this property may have importance in some plants in the development of frothy bloat in ruminants; (2) their ability to lyse erythrocytes even in high dilutions; and (3) their having the compound sapogenin as their aglycones.
saponins in panicoid grasses (Panicum, Brachiaria) Agave lecheguilla, Narthecium ossifragum, Tribulus terrestris are probably responsible for causing crystal-associated cholangiohepatopathy and subsequent secondary photosensitization; this is suspected as the cause of photosensitization associated with other plants. Called also steroidal saponin.
see lithogenic saponins (above).