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Updated: Apr 26, 2026
Preparation of Gynura bicolor DC samples for High-Resolution Tandem Mass Spectrometry
Published on: February 2, 2024
[Chemical constituents from Embelia laeta]
Objective:
To study the chemical constituents from Embelia laeta.
Methods:
The constituents from the EtOAc fraction of ethanol extract of Embelia laeta were separated and purified by column chromatography with silica gel and polyamide. The compounds were identified by their physiochemical proerties and spectral data.
Results:
Eleven compounds were isolated and identified as p-sitosterol (1), beta-daucosterel (2), gallic acid (3), vanillic acid (4), rutin (5), hyperin (6), quercetin (7), kaemperol ( 8), chrysoeriol (9), physcion(10) and apigenin-7-O-glucoside(ll).
Conclusion:
Compounds 5-11 are isolated from this genus for the first time.
