Application of newly synthesized absorbent, polybutylene dodecanoate in dispersive solid-phase microextraction and spectrophotometric determination of quercetin in vegetables, fruits, and beverages

ALTUNAY N., Bişgin A. T., FESLİYAN S., Tuzen M., Hazer B.

Food Chemistry, cilt.513, 2026 (SCI-Expanded, Scopus) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 513
  • Basım Tarihi: 2026
  • Doi Numarası: 10.1016/j.foodchem.2026.149007
  • Dergi Adı: Food Chemistry
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus, BIOSIS, Chemical Abstracts Core, Chimica, Compendex, EMBASE, MEDLINE
  • Anahtar Kelimeler: Dispersive solid-phase microextraction, Foodstuffs, Polybutylene dodecanedioate, Quercetin, Spectrophotometry
  • Sivas Cumhuriyet Üniversitesi Adresli: Evet

Özet

Quercetin is a naturally occurring and valuable bioactive compound found in various vegetables and fruits. The determination of quercetin concentrations in foodstuffs is of great importance; however, it is challenging due to matrix interference. A new sorbent, an aliphatic polyester, polybutylene dodecanedioate was synthesized for extraction of quercetin. It was characterized by NMR, FTIR, XPS, and DSC spectroscopy. A dispersive solid-phase microextraction method for spectrophotometric determination of quercetin in foodstuffs was developed using synthesized adsorbent. Under the optimized conditions, the proposed method showed a linear working range of 15–900 ng/mL, a limit of detection of 4.5 ng/mL, and an enrichment factor of 175 determined using matrix-compatible aqueous model solutions. Quercetin concentrations in vegetables, fruits, and beverages were determined to range from 1.20 to 42.0 mg per 100 g, with spike-test recovery values ranging from 91 to 99%. Determination of quercetin in the real samples was completed within only 10 min by the proposed methodology.