Targeting Metabolic and Neurodegenerative Enzymes With <i>Cousinia cirsioides</i> Boiss. and Bal. Extracts and Major Compounds: LC-HRMS-Based Phytochemistry and Bioactivity Assessment
CHEMISTRY & BIODIVERSITY, cilt.23, sa.6, 2026 (SCI-Expanded, Scopus)
- Yayın Türü: Makale / Tam Makale
- Cilt numarası: 23 Sayı: 6
- Basım Tarihi: 2026
- Doi Numarası: 10.1002/cbdv.71398
- Dergi Adı: CHEMISTRY & BIODIVERSITY
- Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Chemical Abstracts Core, EMBASE, MEDLINE, Natural Science Collection (ProQuest), Biomedical Reference Collection: Corporate Edition (EBSCO), Health Research Premium Collection (ProQuest), Materials Science & Engineering Collection (ProQuest), Technology Collection (ProQuest)
- Erciyes Üniversitesi Adresli: Evet
Özet
This study investigated the antioxidant properties and enzyme-inhibitory activities of Cousinia cirsioides extracts and sub-extracts, along with their phytochemical composition. In this study, the aerial parts of C. cirsioides were extracted with 70% methanol and fractionated into n-hexane, ethyl acetate (CSE), n-butanol, and water sub-extracts. Enzyme inhibition activities were tested against alpha-amylase, alpha-glucosidase, acetylcholinesterase (AChE), butyrylcholinesterase (BChE), and tyrosinase. Antioxidant capacities were evaluated using DPPH, ABTS, FRAP, and CUPRAC assays. TPC, TFC and LC-HRMS analyses were used to identify the phytochemical profile of the extracts. Additionally, the antimicrobial activity was investigated using the microdilution method. As a result, the CSE sub-extract exhibited the most potent antioxidant and enzyme inhibitory activities among the extracts. It showed significant inhibition of alpha-amylase (IC50 = 167.967 & micro;g/mL), AChE (IC50 = 134.165 & micro;g/mL), and tyrosinase (IC50 = 122.354 & micro;g/mL), among others. Moreover, a moderate antimicrobial effect was found in n-hexane sub-extract. LC-HRMS analysis revealed high levels of isoquercitrin, caffeic acid, chlorogenic acid, and protocatechuic acid in the active sub-extract. These compounds were also subjected to the same bioactivity tests. It is revealed that these compounds demonstrated individual bioactivities, although less potent than the extract, suggesting synergistic effects.