5‐O‐Caffeoylshikimic acid from Solanum somalense leaves: Advantage of centrifugal partition chromatography over conventional column chromatography. Issue 17 (24th July 2014)

• Record Type: Journal Article
• Authors: Chideh, Saïda; Pilard, Serge; Attoumbré, Jacques; Saguez, Robert; Hassan‐Abdallah, Alshaimaa; Cailleu, Dominique; Wadouachi, Anne; Baltora‐Rosset, Sylvie
• Is Part Of: Journal of separation science. Volume 37:Issue 17(2014:Sep.)
• Page Start: 2331
• Page End: 2339
• Publication Date: 2014-07-24
• Subjects: Separation (Technology) -- Periodicals; Chromatographic analysis -- Periodicals; 543.089
• DOI: 10.1002/jssc.201400226
• Languages: English
• ISSNs: 1615-9306

Abstract

<abstract abstract-type="main"> <title> <x xml:space="preserve">Abstract</x> </title> <p> <italic>Solanum somalense</italic> leaves, used in Djibouti for their medicinal properties, were extracted by MeOH. Because of the high polyphenol and flavonoid contents of the extract, respectively, determined at 80.80 ± 2.13 mg gallic acid equivalent/g dry weight and 24.4 ± 1.01 mg quercetin equivalent/g dry weight, the isolation and purification of the main polyphenols were carried out by silica gel column chromatography and centrifugal partition chromatography. Column chromatography led to 11 enriched fractions requiring further purification, while centrifugal partition chromatography allowed the easy recovery of the main compound of the extract. In a solvent system composed of CHCl₃/MeOH/H₂O (9.5:10:5), 21.8 mg of this compound at 97% purity was obtained leading to a yield of 2.63%. Its structure was established as 5‐<italic>O</italic>‐caffeoylshikimic acid by mass spectrometry and NMR spectroscopy. This work shows that <italic>S. somalense</italic> leaves contain very high level of 5‐<italic>O</italic>‐caffeoylshikimic acid (0.74% dry weight), making it a potential source of production of this secondary metabolite that is not commonly found in nature but could be partly responsible of the medicinal properties of <italic>S. somalense</italic> leaves.</p> </abstract>