Ultrasound-assisted extraction and RSM optimisation of phenolic compounds from Helichrysum arenarium with chlorogenic acid quantification


Inal E. K., Çam Gündoğar B.

INTERNATIONAL JOURNAL OF FOOD SCIENCE AND TECHNOLOGY, cilt.61, sa.2, 2026 (SCI-Expanded, Scopus)

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 61 Sayı: 2
  • Basım Tarihi: 2026
  • Doi Numarası: 10.1093/ijfood/vvag189
  • Dergi Adı: INTERNATIONAL JOURNAL OF FOOD SCIENCE AND TECHNOLOGY
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus, BIOSIS, Chemical Abstracts Core, Compendex, Food Science & Technology Abstracts, INSPEC, Directory of Open Access Journals, Academic Search Ultimate (EBSCO), Natural Science Collection (ProQuest), Biomedical Reference Collection: Corporate Edition (EBSCO), Engineering Source (EBSCO), Materials Science & Engineering Collection (ProQuest), Technology Collection (ProQuest)
  • Ankara Üniversitesi Adresli: Evet

Özet

Helichrysum arenarium L. Moench is a phenolic-rich plant, yet optimised extraction and characterisation of its bioactive compounds remain limited. This study developed an ultrasound-assisted extraction method combined with response surface methodology and central composite design to optimise the recovery of total phenolics, antioxidant activity, and chlorogenic acid. The effects of ethanol concentration, solvent-to-solid ratio, temperature, and time were evaluated. Under optimal conditions, total phenolic content reached 40.86 mg gallic acid equivalents/g dry weight, antioxidant activity showed 88.9% 2,2-diphenyl-1-picrylhydrazyl inhibition, and chlorogenic acid content was 2.02 mg/g dry weight. The models showed good agreement between predicted and experimental values. Chlorogenic acid was quantified using a validated HPLC-PDA method. Molecular docking suggested a stable interaction of chlorogenic acid with the CYP2C19 enzyme. The optimised approach offers an efficient strategy for extracting natural antioxidants from H. arenarium for use in food and nutraceutical applications.