Phytochemical Characterization of an Endemic Plant Used as Foodstuff in Turkey: Centaurea Urvillei Subsp. Stepposa and Its Antioxidant Properties

Abstract

This study was focused on the analysis of the phenolic content, fatty acid composition, volatile compounds and antioxidant activity of methanol extract from Centaurea urvillei subsp. stepposa. The antioxidant capacity were detected as 43.35 mg TEs/g, 52.18 mg TEs/g and 98.78 mg TEs/g for DPPH, FRAP and CUPRAC, respectively. Chlorogenic acid and apigenin were the major phenolic components in the extract. Linoleic acid (49.54 %) was the predominant fatty acid in the oil. 1, 3-cyclooctadiene (25.08 %) was major components in the essential oil. The study concluded that Centaurea urvillei subsp. stepposa can be used as a source of natural antioxidants for food and pharmacological industry.

Assessment of Antioxidant and Cytotoxic Activities and Identification of Phenolic Compounds of Centaurea solstitialis and Urospermum picroides from Turkey

“…The results on the chemical composition of C. solstitialis reconfirmed the value of the Centaurea genus as a source of phenolic compounds. Our results were in accordance with the phytochemical profile of the Centaurea species from the Turkish flora [36,37]. The phenolic profile of the methanolic extract of Centaurea urvillei subsp.…”

“…In another study, the DPPH and FRAP activities of the methanolic Centaurea urvillei subsp. stepposa extracts were detected as 43.35 and 52.18 TEs g -1 extract, respectively [36]. Based on these results, it may be concluded that C. solstitialis had a higher antioxidant activity than C. lycopifolia and C. urvillei subsp.…”

“…The phenolic profile of the methanolic extract of Centaurea urvillei subsp. stepposa was obtained by using RP-HPLC analysis [36], and it showed a rich phenolic content.…”

Identification of Major Phytocompounds Present in Methanol Fraction of Calotropis gigantea (L.) Dryand Leaves Using GC-MS

“…DL-α-Tocopherol is a synthetic form of vitamin E with potent antioxidant properties and protects biological membranes, lipoproteins and lipid stores against oxidation. Its main function is to protect unsaturated fatty acids against free radicalmediated oxidation" [23,24].…”

Features of the gas chromatographic analysis of aliphatic dicarboxylic acids

“…Значение ИУ фталевой кис лоты на полярной полиэтиленгликолевой фазе Innowax FSC (2563) [15], неприемлемо, так как среднее значение ИУ бен-зойной кислоты на аналогичных фазах равно 2407 ± 23 [8]. При этом газохроматографический анализ такой кислоты, содержа щей второй активный атом водоро да в со ставе гидроксиль ной группы, как са-лициловая, не вызывает проблем; значе ния ее ИУ по дан ным работ [9,[16][17][18][19][20][21]] хорошо воспроизводи-мы и их среднее значе ние равно 1295 ± 21.…”