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saponin

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Also known as Sapogenins glycosides, saponins, triterpene glycosides

Saponins (Latin sapon, 'soap' + -in, 'one of') are bitter-tasting, usually toxic plant-derived secondary metabolites. They are organic chemicals that become foamy when agitated in water and have high molecular weight. They are present in a wide range of plant species throughout the bark, leaves, stems, roots and flowers but particularly in soapwort (genus Saponaria), a flowering plant, the soapbark tree (Quillaja saponaria), common corn-cockle (Agrostemma githago L.), baby's breath (Gypsophila spp.) and soybeans (Glycine max L.). They are used in soaps, medicines (e.g., drug adjuvants), fire e

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Saponins
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15 sections
Contents
  • Classification based on chemical structure
  • Classification by aglycone
  • Steroid glycosides
  • Triterpenoid glycosides
  • Classification by glycone
  • Classification of similar molecules
  • Glycosteroidalkaloids
  • Uses
  • Decoction
  • Biological sources
  • Role in plant ecology and impact on animal foraging
  • Ethnobotany
  • Chemical structure
  • See also
  • References

Saponins (Latin sapon, 'soap' + -in, 'one of') are bitter-tasting, usually toxic plant-derived secondary metabolites. They are organic chemicals that become foamy when agitated in water and have high molecular weight. They are present in a wide range of plant species throughout the bark, leaves, stems, roots and flowers but particularly in soapwort (genus Saponaria), a flowering plant, the soapbark tree (Quillaja saponaria), common corn-cockle (Agrostemma githago L.), baby's breath (Gypsophila spp.) and soybeans (Glycine max L.). They are used in soaps, medicines (e.g., drug adjuvants), fire extinguishers, dietary supplements, steroid synthesis, and in carbonated beverages (for example, being responsible for maintaining the head on root beer). Saponins are both water and fat soluble, which gives them their useful soap properties. Some examples of these chemicals are glycyrrhizin (licorice flavoring) and quillaia (alt. quillaja), a bark extract used in beverages.

==Classification based on chemical structure==

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