Flavonoids from Algerian Endemic Centaurea microcarpa and their Chemotaxonomical Significance
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چکیده
منابع مشابه
Cytotoxic Activities of Flavonoids from Centaurea scoparia
Phytochemical studies on the ethanolic extract of the aerial parts of Centaurea scoparia led to the isolation of two new flavonoids, 3',4'-dihydroxy-(3'',4''-dihydro-3''-hydroxy-4''-acetoxy)-2'',2''-dimethylpyrano-(5'',6'':7,8)-flavone-3-O- β -D-glucopyranoside (1) and 3,3',4'-trihydroxy-(3'',4''-dihydro-3'',4''-dihydroxy)-2'',2''-dimethylpyrano-(5'',6'':7,8)-flavone (2), along with eight known...
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The species of Asteraceae have been found to be a rich source of externally accumulated flavonoid aglycones. This type of compounds attracts the attention, besides for their importance as chemotaxonomic markers, also for their ecological role. In the present study, two local endemic species, Centaurea davidovii and C. parilica, and one widespread species from the same group, C. stenolepis, are ...
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Panax pseudo-ginseng subsp. pseudo-ginseng has a carrot like root with a small rhizome. It was shown that the saponin composition of roots and rhizomes of this subspecies collected in Tibet and China was extremely poor. From the roots and rhizomes collected in Central Nepal, (specimen-PNct), only a small amount of an oleanolic acid saponin, beta-D-glucopyranosyl-oleanolate (2) was isolated toge...
متن کاملAntibacterial and antioxidant activities of three endemic plants from Algerian Sahara.
BACKGROUND Saharan plants are known by their high content of antioxidant products like phenolic compounds due to the extreme climatic conditions. They constitute the basis of treatments used by local population for various diseases. The purposes of this study were to measure the total phenolic compounds and total fl avonoid compounds, to determine antioxidant capacity, and to evaluate the antib...
متن کاملIdentification of flavonoids from endemic plant of Iran Zeravshania aucheri (Boiss.) Pimenov.
Flavonoids are among the most widely distributed natural products in plants with 2000 different compounds occuring in free forms or as glycosides. They have assigned differant roles in nature as signalling molecules. The major and general structures are Flavones, Flavonones, Flavonols, Isoflavones and Anthocyanidin. Methylated, acylated, prenylated or sulfated derivatives can also be met. Flavo...
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ژورنال
عنوان ژورنال: Natural Product Communications
سال: 2011
ISSN: 1934-578X,1555-9475
DOI: 10.1177/1934578x1100601113