Separation of squalene from olive oil deodorizer distillate using short-path molecular distillation

Cetinbas S., Gumus-Bonacina C. E., TEKİN A.

JAOCS, Journal of the American Oil Chemists' Society, cilt.99, sa.2, ss.175-179, 2022 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 99 Sayı: 2
  • Basım Tarihi: 2022
  • Doi Numarası: 10.1002/aocs.12552
  • Dergi Adı: JAOCS, Journal of the American Oil Chemists' Society
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus, ABI/INFORM, Agricultural & Environmental Science Database, Analytical Abstracts, Applied Science & Technology Source, Aquatic Science & Fisheries Abstracts (ASFA), BIOSIS, Business Source Elite, Business Source Premier, CAB Abstracts, Chemical Abstracts Core, Chimica, Compendex, Computer & Applied Sciences, Food Science & Technology Abstracts, INSPEC, Veterinary Science Database
  • Sayfa Sayıları: ss.175-179
  • Anahtar Kelimeler: esterification, molecular distillation, olive oil deodorizer distillate, squalene, MULTIOBJECTIVE OPTIMIZATION, VAPORIZATION
  • Ankara Üniversitesi Adresli: Evet

Özet

© 2021 AOCS.Squalene was recovered from an olive oil deodorizer distillate (OODD) containing 40% of squalene by a two-step process. The first step was to esterify the free fatty acids (FFAs) to make them less volatile. The second step was to separate the squalene by molecular distillation. The best esterification conditions were found to be 190°C and 360 min, where FFA content of the reaction mixture was reduced from 49.3% to 7.9%, however, an inevitable squalene loss (30%) was also observed due to a discontinuous operation. The remaining squalene (28%) in the esterified mixture was then distilled using a molecular distillation unit at elevated temperatures (190–230°C) and pressures (0.05–5 mmHg). When the temperature and vacuum during distillation increased, FFA content in the distillate reduced while distillate yield and squalene purity increased. The highest distillate yield (27.7%) and squalene purity (98.1%) were obtained at the highest applied temperature (230°C) under the lowest absolute pressure (0.05 mmHg), where FFA content of distillate was measured as 1.8%. High percentage of squalene (95%–98%) could be distilled at 230°C between 0.05 and 0.5 mmHg absolute pressures. The overall squalene recovery after all treatments was calculated as 68%.