Triterpenoid Saponins from the Shells of Argania spinosa Seeds
- 25 June 2002
- journal article
- research article
- Published by American Chemical Society (ACS) in Journal of Agricultural and Food Chemistry
- Vol. 50 (16), 4600-4603
- https://doi.org/10.1021/jf0200117
Abstract
Two new oleanene saponins were isolated from the MeOH extract of the shell of Argania spinosa. They possess protobassic acid and 16α-protobassic acid as aglycons. The disaccharide moiety linked to C-3 of the aglycon is made up of two glucose units; the pentasaccharide moiety linked to C-28 is made up of arabinose, xylose, and three rhamnose units. Their structures were elucidated by 1D and 2D NMR experiments including 1H−1H (DQF-COSY, 1D TOCSY, and 2D HOHAHA) and 1H−13C (HSQC and HMBC) spectroscopy along with mass spectrometry. Keywords: Argania spinosa; Sapotaceae; shell; saponinsKeywords
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