Bacosides, gymnemic acids, Centella triterpenes, hederacoside C, mogrosides and steroidal saponins.
| Tests | Bacosides, gymnemic acids, Centella asiatica triterpene derivatives, hederacoside C, mogrosides, protodioscin, diosgenin, tribulus, fenugreek and shatavari saponins, shatavarin IV, jujubosides; saponins in Fitnox and Astragin |
|---|---|
| Method | HPLC, UPLC or LC-MS; UV/Vis or gravimetry for the group estimates |
| Results | Reported against your specification or label claim, with pass/fail where limits apply. |
| Price | Quoted per project |
The chromatographic tests separate the named compounds and measure them against reference standards. The UV/Vis and gravimetric tests are group estimates, described in their sections.
Saponin results from chromatographic, UV/Vis and gravimetric methods are not interchangeable, so tell us the method your specification uses.
Measures bacosides in bacopa materials by HPLC. USP describes bacopa as the dried stems and leaves of Bacopa monnieri and calculates its triterpene glycosides as the sum of bacopaside I, bacoside A3, bacopaside II, the jujubogenin isomer of bacopasaponin C and bacopasaponin C. Tell us which bacosides your specification names.
A UV/Vis estimate of bacosides in bacopa materials, expressed as a reference compound. The result reflects the combined response of the prepared sample solution and does not identify individual saponins; use the HPLC test for a compound-specific result.
Measures gymnemic acids in gymnema materials by HPLC. USP describes gymnema as the dried leaves of Gymnema sylvestre and calculates gymnemic acids as gymnemagenin on the dried basis, with separate monographs for the powder and for native and purified extracts.
A gravimetric estimate of gymnemic acids: the fraction isolated by the procedure is weighed. It is a group result defined by the procedure and is not interchangeable with an HPLC result calculated as gymnemagenin.
Measures Centella asiatica triterpene derivatives by HPLC. The USP Centella asiatica Triterpenes monograph, for an enriched fraction, calculates triterpene derivatives on the anhydrous basis as the sum of two or more of madecassoside, asiaticoside B, asiaticoside, madecassic acid, terminolic acid and asiatic acid. The USP Powdered Centella asiatica Extract monograph states them against the labeled amount, calculated on the dried basis as the sum of all six. Tell us which material and specification apply.
Measures hederacoside C, a triterpene saponin found in ivy leaf, by HPLC as a single compound.
Measures mogrosides, the cucurbitane glycosides of monk fruit, by HPLC. Tell us whether your specification names mogroside V or a total.
Measures protodioscin, a steroidal saponin, by UPLC as a single compound.
Measures diosgenin, a steroidal sapogenin, by HPLC as a single compound. Free diosgenin and diosgenin released from saponins are different results; tell us which your specification means.
A UV/Vis estimate of saponins in Tribulus terrestris materials, expressed as a reference compound. It does not identify individual saponins.
A gravimetric estimate of saponins in fenugreek seed extract: the fraction isolated by the procedure is weighed. It is a group result defined by the procedure.
A gravimetric estimate of total saponins in shatavari (Asparagus racemosus) extracts: the fraction isolated by the procedure is weighed. It is a group result defined by the procedure.
Measures shatavarin IV, a steroidal saponin of shatavari, by liquid chromatography with mass spectrometric detection as a single compound.
A UV/Vis estimate of jujubosides, the saponins of jujube seed, expressed as a reference compound. It does not identify individual jujubosides.
A gravimetric result for saponins in Fitnox ingredient material: the saponin fraction is isolated as the procedure sets and weighed.
Determines saponins in Astragin ingredient material by UV/Vis, expressed as your specification states. The exact procedure is confirmed at quote.
Send the material sealed, labeled and protected from light.
Tell us the material or extract and the specification or label claim. We confirm the sample amount at quote.
Questions about a sample or a method, call 360-967-7010 or email [email protected].
