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alchemilla/flavonoid
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13 résultats
Flavonoid constituents and free radical scavenging activity of Alchemilla mollis.
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Antioxidant capacity of the methanolic extract of Alchemilla mollis was measured by its ability to scavenge the DPPH radical. The EtOAc fraction obtained after partition of the total extract was found to be the most active radical scavenger (IC50 9.8 +/- 1.8 microg/mL) and was subjected to
Identification of a Collagenase-Inhibiting Flavonoid from Alchemilla vulgaris Using NMR-Based Metabolomics.
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This paper describes the use of 1H NMR profiling and chemometrics in order to facilitate the selection of medicinal plants as potential sources of collagenase inhibitors. A total of 49 plants with reported ethnobotanical uses, such as the healing of wounds and burns, treatment of skin-related
Quercetin 3-arabinopyranoside, a major flavonoid compound from Alchemilla xanthochlora.
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Quercetin 3-O-alpha-L-arabinopyranoside (1) was isolated from the aerial parts of Alchemilla xanthochlora and characterized by spectroscopic analysis.
[Flavonoids extracted from Ribes nigrum L. and Alchemilla vulgaris L.: 1. In vitro inhibitory activities on elastase, trypsin and chymotrypsin. 2. Angioprotective activities compared in vivo].
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In vitro experiments were conducted on the inhibitory properties of extracts from Ribes nigrum L. and Alchemilla vulgaris L. (fractions A1 + A2, A1, A2) on activity of the proteolytic enzymes elastase, trypsin and alpha-chymotrypsin. Extracts from Ribes Nigrum L. and Alchemilla Vulgaris L. (Fraction
Flavonoid glycosides from Alchemilla speciosa.
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The new flavonol glycosides quercetin 3- O-beta-(2''- O-alpha- L-rhamnopyranosyl)-glucopyranoside uronic acid and kaempferol 3- O-beta-(2''- O-alpha- L-rhamnopyranosyl)-glucopyranoside uronic acid were isolated from the leaves of Alchemilla speciosa Buser together with 13 known flavonol and flavone
Flavonoid compounds identified in Alchemilla L. species collected in the north-eastern Black Sea region of Turkey.
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This study identified flavonoid glycosides in species of the genus Alchemilla, A. procerrima, A. stricta, A. hirtipedicellata and A. sericata. A. procerrima is an endemic species for Turkey. After detailed investigation, flavonoid compounds of the species were identified for the first time. In this
[Quercetin-3-glucuronide, main flavonoid of Alchemilla, Alchemilla xanthochlora Rothm. (Rosaceae)].
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Phenolic constituents from Alchemilla vulgaris L. and Alchemilla mollis (Buser) Rothm. at different dates of harvest.
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Acetone/water extracts from the leaves, including stalks, of Alchemilla vulgaris L. and A. mollis (Buser) Rothm. were investigated for their phenolic composition by liquid chromatography-tandem mass spectrometry (LC-MS/MS). A total of 24 and 27 compounds were detected for A. vulgaris and A. mollis,
Influence of nutrient medium composition on in vitro growth, polyphenolic content and antioxidant activity of Alchemilla mollis.
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Alchemilla mollis (Buser) Rothm. (Rosaceae) is a high-mountain medicinal plant growing in the Balkan Peninsula, with only one population in Bulgaria. Alchemilla plants (Lady's mantle) are commonly used in traditional medicine for treatment of many gynecological diseases. The commercial drugs "Herba
[Standardization of the aerial parts of Alchemilla].
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Dried aerial parts of Alchemilla xanthochlora Rothm. (16 batches), A. glabra Neygenf. (1 batch), A. coriacea Buser (2 batches) and A. filicaulis Buser (3 batches) present a similar flavonoid and tanin pattern. In the case of A. xanthochlora, the mean levels of the principal compounds were: total
Endothelium-dependent vasorelaxant effect of Alchemilla vulgaris methanol extract: a comparison with the aqueous extract in rat aorta.
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We aimed to investigate the vascular effects of methanol extract (ME) and aqueous extract (AE) of Alchemilla vulgaris (Rosaceaea). Increasing concentrations of the ME (0.01-10 mg/mL) produced relaxations in noradrenaline (NA: 10⁻⁶ M) and K⁺ (40 mM) precontracted aortas while contractions were
Evaluation of hepatoprotective and antidiabetic activity of Alchemilla mollis.
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Alchemilla mollis (Buser) Rothm aerial part and root methanolic-water extracts were evaluated for their hepatoprotective activity on carbon tetrachloride induced hepatotoxicity and hypoglycemic activity on alloxan-induced diabetic mice. None of the tested extracts exhibited effects on blood glucose
Phenolic constituents from Alchemilla vulgaris L. and Alchemilla mollis (Buser) Rothm. at different dates of harvest.
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Acetone/water extracts from the leaves, including stalks, of Alchemilla vulgaris L. and A. mollis (Buser) Rothm. were investigated for their phenolic composition by liquid chromatography-tandem mass spectrometry (LC-MS/MS). A total of 24 and 27 compounds were detected for A. vulgaris and A. mollis,
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