Flavonoid aglycones from the leaf surfaces of some Achillea species

Wollenweber, Eckhard; Valant–Vetschera, Karin M.; Ivancheva, S.; Kuzmanov, B.

doi:10.1016/s0031-9422(00)81506-x

Cited by 34 publications

(21 citation statements)

References 8 publications

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“…The ethanolic extract was concentrated, diluted with water, and extracted with EtOAc. The EtOAc extract was evaporated under reduced pressure, the residue was chromatographed on Sephadex LH-20 column using EtOH as solvent to give 10mg of luteolin 7-O-glucoside (3) (8) and 50mg of quercetagetin 7-O-glucoside (4) (9). The flavonoids were identified by spectral analysis (liv, mass, NMR).…”

supporting

confidence: 86%

Flavonoids fromAchillea micrantha

Hatam¹,

Seifert²

1994

Planta Med

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supporting

confidence: 86%

Flavonoids fromAchillea micrantha

Hatam¹,

Seifert²

1994

Planta Med

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“…As mentioned above, chemical differentiation might be correlated to the geographical and ecological conditions under which they grow and the large variability of structures [22,23]. The ecological correlations in the adaptation of plants to habitats apply to the results of chemotaxonomy [24]. The findings of this study support the view that Salvia species are promising sources of potential antioxidants and may be efficient as preventive agents in diseases caused due to oxidative stress.…”

Section: Discussionsupporting

confidence: 73%

Comparison of Essential Oil Components and Antioxidant Activity between Salvia syriaca and Salvia aristata in Their Natural Habitats in West Azerbaijan Province, Iran

Farshid¹,

Jamei²,

Heidari³

2015

JPP

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Abstract:The aerial parts of two Salvia species were collected at the beginning of flowering stage in June 2013. The essential oil of the air-dried parts of plants was extracted by hydro distillation and the chemical composition of the essential oils of S. aristata and S. syriaca collected in West Azerbaijan (Iran) was studied by means of GC-MS analysis. Total of 18 compounds were identified: 11 compounds were for S. syriaca with total oil of 90.98% and 7 compounds were for S. aristata with total oil of 98.23%. S. aristata had the most concentration of essential oil between these species. In S. syriaca, the main compounds were 1, 6-cineole (46.45%) and camphor (27.58%). In S. aristata, the main compound was benzene, 1, 3-bis m-pheoxypheoxy (95.42%). Other compounds with low concentrations were transcaryophyllene (0.77%) and 1, 3-benzodioxole, 4-methoxy 6-2 (0.98%). In this study, the in vitro antioxidant activities of the essential oil of two Salvia species were examined (prepared by using ethanol 99.5% solvent). Between two species screened, S. aristata had the most antioxidant activity (31%). It was followed by S. syriaca (24%).

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“…Compounds 1-5 were found in fractions 1-90 and fractions 91-130. TLC purification on silica gel, eluted with dichloromethane-methanol (9:1), furnished compounds 1-5, which were identified by UV, 1 H NMR, 13 C NMR, and MS analysis [11,12], and all these data were in good agreement with the respective literature data [13][14][15][16].…”

supporting

confidence: 66%

Flavonoids from Centaurea sulphurea

Kabouche¹,

Kabouche²,

Touzani

et al. 2011

Chem Nat Compd

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Flavonoids and sesquiterpene lactones have a wide occurrence in Centaurea (Asteraceae) [1][2][3][4][5]. Plants of this genus are used to treat inflammations, cardiovascular ailments, microbial infections, and ulcers [6][7][8]. In continuation of our study on Centaurea species [9], we report here five flavonoid aglycones 1-5 from the endemic species Centaurea sulphurea Willd.[10].The air-dried powdered aerial parts of Centaurea sulphurea (1 kg) were extracted in a Soxhlet apparatus with chloroform. The residue (7.5 g) was column chromatographed on silica gel (70-200 mesh) eluted with cyclohexane and dichloromethane (fractions 1-90), then with dichloromethane/ethyl acetate (fractions 91-130), and finally with ethyl acetate/ methanol (fractions 131-166) with increasing polarity. Compounds 1-5 were found in fractions 1-90 and fractions 91-130. TLC purification on silica gel, eluted with dichloromethane-methanol (9:1), furnished compounds 1-5, which were identified by UV, 1 H NMR, 13 C NMR, and MS analysis [11,12], and all these data were in good agreement with the respective literature data [13][14][15][16].

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Flavonoid aglycones from the leaf surfaces of some Achillea species

Cited by 34 publications

References 8 publications

Flavonoids fromAchillea micrantha

Flavonoids fromAchillea micrantha

Comparison of Essential Oil Components and Antioxidant Activity between Salvia syriaca and Salvia aristata in Their Natural Habitats in West Azerbaijan Province, Iran

Flavonoids from Centaurea sulphurea

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