Crystallization of sucrose by using microwave vacuum evaporation

Ibis O. I., Bugday Y. B., Aljurf B. N., Goksu A. O., Solmaz H., ÖZTOP H. M., ...More

Journal of Food Engineering, vol.365, 2024 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 365
  • Publication Date: 2024
  • Doi Number: 10.1016/j.jfoodeng.2023.111847
  • Journal Name: Journal of Food Engineering
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Academic Search Premier, Aquatic Science & Fisheries Abstracts (ASFA), BIOSIS, Biotechnology Research Abstracts, CAB Abstracts, Compendex, Food Science & Technology Abstracts, INSPEC, Veterinary Science Database
  • Keywords: Microwave processing, Microwave vacuum system, Refined sugar, Sucrose, Sucrose crystallization
  • Middle East Technical University Affiliated: Yes

Abstract

Sucrose crystallization was performed by using a custom designed microwave vacuum evaporation system. Process was designed to mimic a semi-batch crystallization starting from beet syrup concentration to crystal slurry formation. The effect of microwave power and feeding time on the process yield and product attributes (particle size, solution color and turbidity) were investigated. Microwave treatment was shown to affect the sucrose crystal morphology and the quality parameters significantly. Process yield was significantly affected by both crystallization power and feeding time (p < 0.05). Longer feeding time (15 min) and medium microwave power (30%) resulted in the highest process yield (∼55%). The results revealed that microwave processing can be a promising alternative over commercial crystallization.