TRAPPING OF BETANIN IN ALGINATE MICROCAPSULES: STABILITY STUDIES UNDER ACCELERATED CONDITIONS

TOPRAKÇI YÜKSEL İ., KURTULBAŞ ŞAHİN E., TORUN M., Torun F., ŞAHİN SEVGİLİ S.

ENVIRONMENTAL ENGINEERING AND MANAGEMENT JOURNAL, cilt.22, sa.4, ss.629-637, 2023 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 22 Sayı: 4
  • Basım Tarihi: 2023
  • Doi Numarası: 10.30638/eemj.2023.049
  • Dergi Adı: ENVIRONMENTAL ENGINEERING AND MANAGEMENT JOURNAL
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Aqualine, Aquatic Science & Fisheries Abstracts (ASFA), CAB Abstracts, Environment Index, Greenfile, Pollution Abstracts, Veterinary Science Database
  • Sayfa Sayıları: ss.629-637
  • Anahtar Kelimeler: biopolymers, encapsulation, particle morphology, phenolic compounds
  • Akdeniz Üniversitesi Adresli: Evet

Özet

Microcapsules including red beet extract rich in betanin were produced by ionic gelation. Sodium alginate was used as wall material. Impacts of coating amount and active material were assessed with encapsulation efficiency (EE) of the capsules in terms of total phenolic content (TPC). Encapsulation of the red beet extract in alginate microbeads was satisfying with >80% under the best conditions of ionic gelation (15% calcium chloride concentration and 2% sodium alginate for 15 min of hardening time). The interaction between the active material and the alginate beads was also investigated by diffuse reflectance fourier transform (DRIFT) spectroscopy. Scanning electron microscopy (SEM) was used to comprehend the morphology. Shape properties were determined with sphericity factor (SF) and the roundness (Rn) by stereo-microscope. Accelerated oxidation test was employed to measure the stability of the microcapsules by Rancimat method. Stability of the microbeads were evaluated in terms of kinetic and thermodynamic analyzes.