| Autor: |
Osmic N; Department of Chemistry, Faculty of Science, University of Sarajevo, Sarajevo, Bosnia and Herzegovina., Culum D; Department of Chemistry, Faculty of Science, University of Sarajevo, Sarajevo, Bosnia and Herzegovina., Ibragic S; Department of Chemistry, Faculty of Science, University of Sarajevo, Sarajevo, Bosnia and Herzegovina. |
| Jazyk: |
angličtina |
| Zdroj: |
Natural product research [Nat Prod Res] 2024 Apr; Vol. 38 (8), pp. 1457-1462. Date of Electronic Publication: 2022 Nov 23. |
| DOI: |
10.1080/14786419.2022.2149517 |
| Abstrakt: |
Using HPLC-DAD the presence of catechin, epicatechin, quercetin, kaempferol and protocatehuic acid was analysed in herb extracts of eight Ephedra species ( Ephedra sinica , Ephedra major , Ephedra chilensis , Ephedra ciliata , Ephedra foeminea , Ephedra equisetina , Ephedra gerardiana and Ephedra distachya ). For comparison purposes, the same phenolics were determined in Camellia sinensis herb, which is a common source of catechins and a medicinal plant with valuable antioxidant properties. The catechin content in Ephedra spp. ranged between 0.83 mg/g d.w. - 8.77 mg/g d.w. , while the epicatechin content was between 0.11 mg/g d.w. - 3.38 mg/g d.w. In comparison to black tea, Ephedra major , Ephedra distachya and Ephedra equisetina had a higher catechin content. The selected Ephedra spp. are rich in catechins and the obtained results serve as the chemical rationale for the anti-inflammatory, antioxidant and anti-proliferative activities of Ephedra that are currently being investigated. |
| Databáze: |
MEDLINE |
| Externí odkaz: |
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