FABRICATION AND CHARACTERIZATION OF ELECTROSPUN ANTHOCYANIN-LOADED POLYLACTIDE NANOFIBERS


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Palak H., Karagüzel Kayaoğlu B.

Vlakna a Textil, cilt.30, sa.1, ss.76-79, 2023 (Scopus) identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 30 Sayı: 1
  • Basım Tarihi: 2023
  • Doi Numarası: 10.15240/tul/008/2023-1-013
  • Dergi Adı: Vlakna a Textil
  • Derginin Tarandığı İndeksler: Scopus
  • Sayfa Sayıları: ss.76-79
  • Anahtar Kelimeler: Anthocyanin, Bio-based, Electrospinning, Nanofibers, Polylactide (PLA)
  • İstanbul Teknik Üniversitesi Adresli: Evet

Özet

In this study, morphological, chemical and thermal characteristics of biobased and biodegradable anthocyanin-loaded polylactide (PLA) nanofibrous membranes were investigated. To prepare electrospinning solutions, PLA was dissolved at a concentration of 10% (wv-1) in a solvent system of chloroform/dimethylformamide (75/25% vv-1), and anthocyanin at different concentrations (1, 2, and 3% wv−1) was added into the polymer solutions. The prepared solutions were electrospun by using a single syringe electrospinning setup. The morphological, chemical and thermal structure of the neat and anthocyanin-loaded PLA nanofibrous membranes were characterized via Scanning Electron Microscopy (SEM), Fourier Transform Infrared Spectroscopy (FT-IR), and Differential Scanning Calorimetry (DSC), respectively. The FT-IR spectra proved the incorporation of anthocyanin into nanofibrous membranes successfully. It was observed that when anthocyanin was added into the polymer solution; bead-free nanofibers were produced, and when the concentration of anthocyanin was increased, mean fiber diameter increased as well. In addition, anthocyanin loading did not affect the crystallization behavior of PLA; however, the glass transition temperature (Tg) of the nanofibrous membranes including no anthocyanin in the structure was higher than those of the other membranes including anthocyanin.