Saponin n. : 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, which occasions a soapy lather in solution, and produces a local anaesthesia. Formerly called also struthiin, quillaiin, senegin, polygalic acid, etc. By extension, any one of a group of related bodies of which saponin proper is the type.

Example:
what plant can be used to extract Saponin glycosides?

Taxonomy
saponins, plant, Triterpenoid saponins, Glycoside, steroidal saponin, natural products, toxicity, saccharide, aglycone, free encyclopedia, soap, therapeutic claims, chains, skeleton, complexation, cell membranes, vaccines, biosynthesis.

Defination from the web:
saponin. ... One research use of the saponin class of natural products involves their complexation with cholesterol to form pores in cell membrane bilayers, e. ...