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Updated: Aug 16, 2026

Preparation of Hard Palm Seeds for Matrix-Assisted Laser Desorption/Ionization-Imaging Mass Spectrometry Analysis
Published on: June 30, 2023
[Study on chemical constituents in seeds of Helicia nilagirica (II)]
Gui-Yan Liu1, Shuang-Cheng, Yu-Mei Zhang
1Beijing University of Traditional Chinese Medicine, Beijing 100029, China. liuguiyan2001@yahoo.com.cn
Objective:
To study the chemical constituents in seeds of Helicia nilagirica.
Method:
The ethanol extract was seperated by petroleum ether, dichloromethane, n-butanol in sequence, then isolated by silica gel column chromatography. The structures were identified and elucidated by physicochemical properties and spectral analysis.
Result:
Five compounds were isolated from the dichloromethane and n-butanol extracts, identified as p-hydroxybenzaldehyde (1), p-hydroxybenzoic acid (2), gallic acid (3), helicide (4), 4-formylpymyl-O-beta-D-glucopyranoside (5).
Conclusion:
All the compounds except IV were isolated from the plant for the first time. The compounds I, II and III were isolated from the genus Helicia for the first time.

