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Dammarane-type saponins from leaves of Ziziphus spina-christi. 2017

Alen Bozicevic, and Maria De Mieri, and Angela Di Benedetto, and Frank Gafner, and Matthias Hamburger
Institute of Pharmaceutical Biology, University of Basel, Klingelbergstrasse 50, CH-4056, Basel, Switzerland. Electronic address: alen.bozicevic@unibas.ch.

Phytochemical profiling of Ziziphus spina-christi leaves led to the characterization of 10 dammarane-type saponins and 12 phenolic compounds. Isolation was achieved by gel chromatography on Sephadex LH20, open column chromatography on silica gel, and semi-preparative HPLC with PDA and ELSD detectors. Structural characterization was performed by extensive 1D and 2D NMR, mass spectrometry, and by GC-MS of sugar derivatives. A biosynthetic pathway leading to three previously undescribed sapogenins is proposed. The saponin profiles in Z. spina-christi leaves of four different origins were compared by means of HPLC-ESIMS.

UI MeSH Term Description Entries
D002851 Chromatography, High Pressure Liquid Liquid chromatographic techniques which feature high inlet pressures, high sensitivity, and high speed. Chromatography, High Performance Liquid,Chromatography, High Speed Liquid,Chromatography, Liquid, High Pressure,HPLC,High Performance Liquid Chromatography,High-Performance Liquid Chromatography,UPLC,Ultra Performance Liquid Chromatography,Chromatography, High-Performance Liquid,High-Performance Liquid Chromatographies,Liquid Chromatography, High-Performance
D000097669 Dammaranes Tetracyclic triterpenes named after dammar resin, a natural resin first isolated from tropical trees of the DIPTEROCARPACEAE family. Dammarane,Dammarane-Type Triterpenes,Triterpenes, Dammarane-Type
D012503 Saponins A type of glycoside widely distributed in plants. Each consists of a sapogenin as the aglycone moiety, and a sugar. The sapogenin may be a steroid or a triterpene and the sugar may be glucose, galactose, a pentose, or a methylpentose. Saponin
D014315 Triterpenes A class of terpenes (the general formula C30H48) formed by the condensation of six isoprene units, equivalent to three terpene units. Triterpene,Triterpenoid,Triterpenoids
D015394 Molecular Structure The location of the atoms, groups or ions relative to one another in a molecule, as well as the number, type and location of covalent bonds. Structure, Molecular,Molecular Structures,Structures, Molecular
D018515 Plant Leaves Expanded structures, usually green, of vascular plants, characteristically consisting of a bladelike expansion attached to a stem, and functioning as the principal organ of photosynthesis and transpiration. (American Heritage Dictionary, 2d ed) Plant Leaf,Leaf, Plant,Leave, Plant,Leaves, Plant,Plant Leave
D031957 Ziziphus A plant genus of the family RHAMNACEAE. Members contain nummularogenin (a spirostane) and is the source of an edible fruit. Jujube,Zizyphus,Jujubes

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