Celosin I

Nat Prod Res. 2013 Aug;27(15):1353-60.

Novel triterpenoid saponins from the seeds of Celosia argentea L.[Pubmed: 23157342 ]

METHODS AND RESULTS:
Two new triterpenoid saponins Celosin I (1) and Celosin II (2) were isolated from the seeds of Celosia argentea L. (Amaranthaceae). The structures of the two new compounds were elucidated based on chemical analysis and spectral methods (IR, 1-D and 2-D NMR, ESI-MS, HR-ESI-MS).
CONCLUSIONS:
They exhibited significant hepatoprotective effect on carbon tetrachloride-induced and N,N-dimethylformamide-induced hepatotoxicity in mice.

J Asian Nat Prod Res. 2014;16(3):240-7.

New oleanane-type triterpenoid saponins isolated from the seeds of Celosia argentea.[Pubmed: 24456247]

METHODS AND RESULTS:
Three new oleanane-type triterpenoid saponins named celosin H, Celosin I, and celosin J were isolated from the seeds of Celosia argentea L. Their structures were characterized as 3-O-β-D-xylopyranosyl-(1 → 3)-β-D-glucuronopyranosyl-polygalagenin 28-O-β-D-glucopyranosyl ester, 3-O-β-D-glucuronopyranosyl-medicagenic acid 28-O-β-D-xylcopyranosyl-(1 → 4)-α-L-rhamnopyranosyl-(1 → 2)-β-D-fucopyranosyl ester, and 3-O-β-D-glucuronopyranosyl-medicagenic acid 28-O-α-L-arabinopyranosyl-(1 → 3)-[β-D-xylcopyranosyl-(1 → 4)]-α-L-rhamnopyranosyl-(1 → 2)-β-D-fucopyranosyl ester by NMR, MS, and chemical evidences, respectively.
CONCLUSIONS:
In our opinion, celosin H, Celosin I, and celosin J could be used as chemical markers for the quality control of C. argentea seeds.