Comparative analysis of essential oils and antimicrobial activities of Scorzonera yildirimlii and S. zorkunensis from Türkiye


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Korkmaz B., Bozdal G., Şahin B., Yıldırmış S., Coşkunçelebi K., Makbul S., ...Daha Fazla

INTERNATIONAL JOURNAL OF SECONDARY METABOLITE, cilt.13, sa.2, ss.600-610, 2026 (Scopus, TRDizin)

Özet

Abstract: The present study aimed to investigate the chemical composition of

essential oils (EOs) of two endemic species, Scorzonera yildirimlii and S.

zorkunensis. The EOs were obtained using hydrodistillation (HD) and analyzed by

GC-MS. A total of 48 and 37 compounds were identified, accounting for 99.96%

and 99.94%, respectively. Aldehydes (56.20% / 34.55%) and terpenoids (17.89% /

25.55%) were the primary chemical classes in the essential oil of both species.

Nonanal (18.76%) and phytol (15.58%) in the EO of S. yildirimlii and 2-

nonadecanone (21.62%) and cedroxide (12.07%) in the EO of S. zorkunensis were

found to be significant compounds. The antimicrobial activities of the EOs of both

species were evaluated against nine microorganisms. They showed the strongest

activity against Mycobacterium smegmatis, with MIC values of 32.63 μg/mL and

65.81 μg/mL, respectively.