Elemanolide sesquiterpenes and eudesmane sesquiterpene glycosides from Centaurea hierapolitana

In Vitro Evaluation of Phenolics Content, Antioxidant and Antimicrobial Activities of Three Centaurea L. Species from Iran

“…To the best of our knowledge, several studies were fulfilled on radical scavenging activity of some members of the genus Centaurea, such as C. cyanus, C. scabiosa, 26 C. calolepis and C. cadmea. 27,28 However, the methods for DPPH assay, which were used in these studies was different, so their results are no directly comparable to ours. Many reports revealed that there is a direct interaction between antioxidant activity and reducing power of plant extract.…”

Phytotoxic compounds from roots ofCentaurea diffusaLam.

“…Hispidulin is a common compound of aerial and root parts of Centaurea species. [14][15][16] Phytotoxic activity of this flavonoid on the germination and growth of crop species is known. 17 Contrary to a previous report, 4 8-hydroxyquinoline was not detected in the root exudates and these results are complementary to the Norton et al, 5 studies in which it was not found in extracts of C. diffusa soils, either greenhouse-grown or field-collected.…”

Phenolic Glycosides with antiproteasomal activity from Centaurea urvillei DC. subsp. urvillei

“…12 Chemical investigations of various Centaurea species have revealed mainly sesquiterpene lactones, flavonoids, alkaloids, and lignans. 13,14 A phytochemical work performed on Centaurea urvillei leaves revealed methoxy flavones as major metabolites. Additionally, in this study, CHCl 3 and EtOAc extracts, and the major constituent, hispidulin, were evaluated for their cytotoxic activities against L-strain fibroblasts and all exhibited modest cytotoxicity.…”