Danuta Sobolewska

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The aim of this study was the isolation and structural elucidation of steroidal glycosides from the underground parts of ramson Allium ursinum L. The structures of the isolated compounds were established based upon chromatographic methods and 1D- and 2D-NMR, MS and IR analyses. The mixture of two steroidal saponins: (25R)-spirost-5-en-3b-ol tetrasaccharide(More)
Saponins are natural glycosides which possess a wide range of pharmacological properties including cytotoxic activity. In this review, the recent studies (2005–2009) concerning the cytotoxic activity of saponins have been summarized. The correlations between the structure and the cytotoxicity of both steroid and triterpenoid saponins have been described as(More)
Steroidal saponins are widely distributed among monocots, including the Amaryllidaceae family to which the Allium genus is currently classified. Apart from sulfur compounds, these are important biologically active molecules that are considered to be responsible for the observed activity of Allium species, including antifungal, cytotoxic, enzyme-inhibitory,(More)
Ramson—Allium ursinum L. is a medicinal and dietary plant species with a long tradition of use. This mini-review summarizes the current knowledge on the phytochemistry and pharmacological properties of this valuable plant, with special emphasis on antimicrobial, cytotoxic, antioxidant, and cardio-protective effects.
A thorough investigation of saponin fraction from the underground parts of wild garlic--Allium ursinum L. (Liliaceae) has led to the isolation of 3-[O-alpha-rhamnopyranosyl-(1-->4)-alpha-rhamnopyranosyl-(1-->4)- alpha-rhamnopyranosyl-(1-->4)-beta-glucopyranoside-(1-->)]-3 beta-hydroxypregna-5,16-dien-20-one [1]. The structure of 1 was established by(More)
The in vitro anti-denaturation and anti-hyaluronidase activities of Impatiens parviflora extracts and isolated galactolipids (MGDG-1, DGDG-1) were investigated. This is the first report on these compounds in I. parviflora. All extracts showed anti-hyaluronidase activity, but only methanolic extract from fresh leaves exhibited significant activity against(More)
Extracts from leaves and stems of Chenopodium hybridum were characterised for the presence and quantity of flavonoids and phenolic acids by LC-ESI-MS/MS. Five flavonoids and eight phenolic acids were detected for the first time in aerial parts of this plant species, the most abundant compounds being rutin (2.80 μg/g DW), 3-kaempferol rutinoside (2.91 μg/g(More)
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