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scorzonera humilis/antioxidant
Odkaz je uložen do schránky
13 Výsledek
Antioxidant and free radical-scavenging activity of constituents from two Scorzonera species.
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Přihlášení Registrace
The aim of this study was to investigate the secondary metabolites content of Scorzonera papposa DC., an edible plant eaten in the desert region of Jordan and to assess its antioxidant and free radical-scavenging activity. By using this bioassay-oriented approach nine compounds, including the new
Evaluation of Antioxidant Activities and Phenolic Compounds of Scorzonera latifolia (Fisch. & Mey.) DC. Collected from Different Geographic Origins in Turkey
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Přihlášení Registrace
Objectives: The chemical composition of plants is considered to be affected by many parameters. Therefore, the region where the samples are collected is likely to have an influence on the composition of phenolic compounds, so that their
Effect of extraction solvents on the biomolecules and antioxidant properties of Scorzonera undulata (Asteraceae): Application of factorial design optimization phenolic extraction.
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Přihlášení Registrace
BACKGROUND
Phenolic compounds were extracted and isolated from S. undulata roots.
METHODS
Sample of roots from E. hirta was tested for phenolic compounds, and in vitro antioxidant activity by diphenyl-1-picrylhydrazyl (DPPH) assay, ABTS, FRAP and reducing power was measured using cyano- ferrate
Dihydrostilbene derivatives from the Mongolian medicinal plant Scorzonera radiata.
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Přihlášení Registrace
Chromatographic separation of a crude extract obtained from aerial parts of the Mongolian medicinal plant Scorzonera radiata yielded five new dihydrostilbenes, scorzodihydrostilbenes A-E (1-5). The structures were unambiguously elucidated on the basis of one- and two-dimensional NMR ((1)H, (13)C,
Prospective neurobiological effects of the aerial and root extracts and some pure compounds of randomly selected Scorzonera species.
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Přihlášení Registrace
BACKGROUND
Scorzonera L. species (Asteraceae) are edible and as medicinal plants are used for various purposed in folk medicine.
OBJECTIVE
The methanol extracts of the aerial parts and roots from 27 Scorzonera taxa were investigated for their possible neurobiological effects.
METHODS
Inhibitory
Anti-aging activities of extracts from Tunisian medicinal halophytes and their aromatic constituents.
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Přihlášení Registrace
Six medicinal halophytes widely represented in North Africa and commonly used in traditional medicine were screened for pharmacological properties to set out new promising sources of natural ingredients for cosmetic or nutraceutical applications. Thus, Citrullus colocynthis, Cleome arabica, Daemia
Inhibitory activity of Scorzonera latifolia and its components on enzymes connected with healing process.
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Přihlášení Registrace
Phenolic compounds from the Mongolian medicinal plant Scorzonera radiata.
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Přihlášení Registrace
Chromatographic separation of a crude extract obtained from aerial parts of the Mongolian medicinal plant Scorzonera radiata yielded fifteen natural compounds, including two new flavonoids and one new quinic acid congener, as well as four flavones and eight quinic acid derivatives, all of which are
Biologically active natural products from Mongolian medicinal plants Scorzonera divaricata and Scorzonera pseudodivaricata.
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Přihlášení Registrace
Chromatographic separation of a crude extract obtained from the aerial parts of the Mongolian medicinal plant Scorzonera divaricata yielded the two new quinic acid derivatives feruloylpodospermic acids A and B. Both compounds feature a feruloyl group and two dihydrocaffeoyl substituents. For
Two new phenolic compounds and some biological activities of Scorzonera pygmaea Sibth. & Sm. subaerial parts.
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Přihlášení Registrace
Phytochemical composition of ethyl acetate fraction and total phenolic content, in vitro antioxidant, anti-inflammatory, antimicrobial activities of petroleum ether, chloroform, ethyl acetate and n-butanol fractions of the ethanol extract obtained from the subaerial parts of Scorzonera pygmaea
Sesquiterpenoids and tirucallane triterpenoids from the roots of Scorzonera divaricata.
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Přihlášení Registrace
A sulfated guaiane sesquiterpene lactone, an unusual pyridinium alkaloid with a sulfated guaiane sesquiterpene lactone nucleus, an amino conjugate of a sulfated guaiane sesquiterpene lactone, a bisabolane sesquiterpene, three tirucallane triterpenes, and six known compounds, were isolated from roots
Radical scavenging activity and cytotoxicity of active quinic acid derivatives from Scorzonera divaricata roots.
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Přihlášení Registrace
Five new quinic acid derivatives and two known 3-O-feruloylquinic acids were isolated from the roots of Scorzonera divaricata Turcz. The new compounds were elucidated as (-)-1,4-di-O-feruloyl-3-O-dihydrocaffeoylquinic acid, (-)-1-O-feruloyl-4-O- dihydrocaffeoylquinic acid,
Synthesis of the aglycon of scorzodihydrostilbenes B and D.
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Přihlášení Registrace
Benzyl- and methyl-protected 2,4-dihydroxyacetophenones are added under ruthenium catalysis to 4-methoxy- and 3,4-dimethoxystyrene in a completely regioselective manner. Thus, oxygenated dihydrostilbenes are obtained that feature the skeleton of scorzodihydrostilbenes - antioxidative agents that
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