摘要：Volatile antimicrobial oils like thyme oil or cardamom oil containing bioactive ingredients adversely affect microorganism's cells. Bioactive ingredients should be protected from ambient conditions of processing and storage to exhibit their desired effects during consumption. Therefore, encapsulation of bioactive ingredients plays an important role in terms of their efficiency. Nanofiber encapsulation offers lots of advantages compared to the other encapsulation methods. In this study, the objective was to investigate that whether thyme oil or cardamom oil can be electrospun uniaxially or coaxially. To obtain uniaxial nanofiber, 20% gelatin-acetic (w/v) acid solution was prepared by gelatin dissolved in 20 % acetic acid-water solvent (v/v). The feed solutions were prepared by mixing of gelatin solution and thyme or cardamom oils (9:1). For coaxial geometry, same antimicrobial oils were encapsulated with 20% gelatin-acetic acid solution (w/v). The core was only the oil and the shell was the gelatin solution, which each was pumped by two different micropumps. Nanofiber structure was obtained for the samples containing thyme oil whereas no fiber formation was attained for the samples with cardamom oil. In the future, different electrospinning process parameters may be applied to obtain nanofibers containing cardamom oil. In addition, the release kinetics of nanofiber encapsulated oils may be studied at different conditions for various objectives. The outcome of this study will help such studies that will be conducted in the future.
