Chromatographic analyses of gingerol compounds in ginger (zingiber officinale roscoe) extracted by liquid carbon dioxide

✍ Scribed by Chu-Chin Chen; Robert T. Rosen; Chi-Tang Ho

• Publisher: Elsevier Science
• Year: 1986
• Tongue: English
• Weight: 661 KB
• Volume: 360
• Category: Article
• ISSN: 1873-3778
• DOI: 10.1016/s0021-9673(00)91659-5

✦ Synopsis

The ginger01 compounds of freeze-dried ginger (Zing&r ojicinale Roscoe) were extracted by liquid carbon dioxide (600-700 psi.), isolated by thin-layer chromatography and fractionated into individual ginger01 compounds by preparative high-performance liquid chromatography.

Two homologous series, 6, S-, lo-, 12-, 1Cgingerols and methyl-6-, methyl-S-, methyl-lo-, methyl-1Zgingerols were identified by the combined results of (1) high-performance liquid chromatographic retention in analytical column; (2) molecular ion determination of isolated ginger01 compounds by fast atom bombardment-mass spectrometry; (3) gas chromatography and gas chromatography-mass spectrometry analyses of aldehydes and ketones formed from the thermal degradation of the corresponding gingerol&mpounds. This is the first report of the presence in ginger of lCgingero1 and gingerols with methyl sidechains.