“…A ccord ing to all o u r previous results, flavonoid aglycones, w henever present in m em bers o f the A steraceae, are constitu en ts o f a com plex lipophilic exudate th a t consists m ainly o f terpenoids[9,18,19]. We assum e, therefore, th a t the flavonoids reported here are also accum ulated externally.T he flavonoid p attern s observed in extracts o f leaves, stems, an d flow er heads are qualitatively the same; there are only m in o r q u an titativ e differ ences.…”
Ten methylated flavonols have been identified in the lipophilic resinous exudate found on aerial parts of Grin delia tarapacana, a gum weed species of Chile.
“…A ccord ing to all o u r previous results, flavonoid aglycones, w henever present in m em bers o f the A steraceae, are constitu en ts o f a com plex lipophilic exudate th a t consists m ainly o f terpenoids[9,18,19]. We assum e, therefore, th a t the flavonoids reported here are also accum ulated externally.T he flavonoid p attern s observed in extracts o f leaves, stems, an d flow er heads are qualitatively the same; there are only m in o r q u an titativ e differ ences.…”
Ten methylated flavonols have been identified in the lipophilic resinous exudate found on aerial parts of Grin delia tarapacana, a gum weed species of Chile.
“…Therefore, peak 9 was tentatively identified as 8-methoxyeriodictyol-7-O-glucoside. Its aglycone, 8-methoxyeriodictyol, has been isolated from several plants [32][33][34]; however, its glycoside form has not been described previously. Peaks 10 (t R 6.…”
Section: Subsection Identification Of Metabolites In Coreopsis Cultivars Using Uplc-qtof-msmentioning
confidence: 99%
“…19-No. 24) were clustered as one big cluster with similar distribution of areas of peaks 1, 3,4,5,9,11,12,13,17,20,21,22,23,24,26,27,34,40, and 41. 'Luckyten 6' (No.…”
Coreopsis species have been developed to produce cultivars of various floral colors and sizes and are also used in traditional medicine. To identify and evaluate mutant cultivars of C. rosea and C. verticillata, their phytochemical profiles were systematically characterized using ultra-performance liquid chromatography time-of-flight mass spectrometry, and their anti-diabetic effects were evaluated using the dipeptidyl peptidase (DPP)-IV inhibitor screening assay. Forty compounds were tentatively identified. This study is the first to provide comprehensive chemical information on the anti-diabetic effect of C. rosea and C. verticillata. All 32 methanol extracts of Coreopsis cultivars inhibited DPP-IV activity in a concentration-dependent manner (IC50 values: 34.01–158.83 μg/mL). Thirteen compounds presented as potential markers for distinction among the 32 Coreopsis cultivars via principal component analysis and orthogonal partial least squares discriminant analysis. Therefore, these bio-chemometric models can be useful in distinguishing cultivars as potential dietary supplements for functional plants.
“…Sclerocarpus is placed by molecular data as a relatively basal member of the sunflower subtribe, Heliantheae [10]. Previous phytochemical investigations of Heliantheae have led to the isolation and identification of important medicinal compounds [11][12][13][14][15].…”
Aim: To determine phytochemical constituents and antimicrobial activity of leaves and twigs of Sclerocarpus africanus (Jacq); prove or otherwise ethno-medicinal claims on S. africanus.
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