Saponin
class of chemical compounds
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
Structurally, saponins are glycosides with at least one glycosidic linkage between a sugar chain (glycone) and another non-sugar organic molecule (aglycone). The resulting saponin can be classified by the particular moieties in each case.
Classification by aglycone
The aglycone moiety of the saponin encompasses the lipophilic portion of the compound and is sometimes referred to as the sapogenin.
Begin with the source’s own compact description: “Saponin” is class of chemical compounds. The dossier treats that line as a proposition to test through Saponin, class and chemical, not as a finished interpretation.
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Datasets, specimens, observations and peer-reviewed methods provide the appropriate test for the technical claims summarized here. The source revision retrieved here is dated Sep 17, 2026. The linked authority identifier is Q207653. The Library of Congress control number is sh85117452. 1 of 1 selected statements include explicit references; 1 carry qualifiers and 0 use preferred rank.
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This entry incorporates text from “Saponin” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.