Chemical fingerprints, antioxidant, enzyme inhibitory, and cell assays of three extracts obtained from Sideritis ozturkii Aytaç & Aksoy: An endemic plant from Turkey

Gokhan Zengin, Asli Uğurlu, Mehmet Cengiz Baloglu, Alina Diuzheva, J. Jekó́, Zoltán Cziáky, Ramazan Ceylan, Abdurrahman Aktumsek, Carene Marie Nancy Picot-Allain, M. Fawzi Mahomoodally

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2 Citations (Scopus)


This study was geared towards assessing the possible antioxidant, enzyme inhibitory, and cytotoxic activities of ethyl acetate, methanol, and water extracts of Sideritis ozturkii Aytaç & Aksoy. The phytochemical profiles of the studied extracts were characterised by HPLC-MS/MS. The methanol extract, rich in phenolics (78.04 mg gallic acid equivalent/g), exhibited the strongest antioxidant activities. However, the ethyl acetate extract was the most active extract in the enzyme inhibitory assays. The water extract of S. ozturkii (1 mg/ml, 48 h incubation) slightly inhibited (22%) growth of human breast cancer cell line (MDA-MB-231 cells). On the other hand, the ethyl acetate and methanol extracts showed strong inhibition (98% and 97%, respectively) of MDA-MB-231 cells and caused apoptotic cell death. Scientific data generated from this study further appraises the multiple biological activities of plants belonging to the Sideritis genus. In addition, preliminary evidence gathered from the current investigation advocates for further studies geared towards the preparation of therapeutic formulations from S. ozturkii.

Original languageEnglish
Pages (from-to)118-125
Number of pages8
JournalJournal of Pharmaceutical and Biomedical Analysis
Publication statusPublished - Jul 15 2019



  • Antioxidant
  • Apoptosis
  • Bioactive agents
  • Diabetes
  • Neuroprotection
  • Sideritis

ASJC Scopus subject areas

  • Analytical Chemistry
  • Pharmaceutical Science
  • Drug Discovery
  • Spectroscopy
  • Clinical Biochemistry

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