Mutual Solubility Study in Supercritical Fluid Extraction of Tocopherols from Crude Palm Oil Using CO2 Solvent

International Journal of Molecular Sciences

Reza Davarnejad¹  Zainal Ahmad²  Suhairi A. Sata²  Mostafa Keshavarz Moraveji¹ 

[1] Chemical Engineering Department, Arak University, Arak, Iran; E-Mails:;School of Chemical Engineering, Engineering Campus, Universiti Sains Malaysia, 14300 Nibong Tebal, Penang, Malaysia; E-Mails:

关键词: crude palm oil;    phase behavior;    supercritical extraction;    tocopherols;   

DOI  :  10.3390/ijms11103649

来源: mdpi

【 摘 要 】

In this article, the mutual solubility of tocopherols from crude palm oil was studied using carbon dioxide as a solvent at the temperatures of 80, 100 and 120 °C. Each sample from the phase equilibrium unit contained two parts. The liquid part was analyzed by gas chromatography (GC) in order to measure the tocopherol composition and, on the other hand, the vapor phase was conducted in an expansion vessel in order to measure the pressure increment during the expansion process. Two phase equilibrium data was calculated using the liquid phase composition and pressure increments during the expansion process. Results showed that the maximum solubility of tocopherols was around 2.27% at a temperature of 120 °C and at pressure of 5.44 MPa.

【 授权许可】

CC BY   
© 2010 by the authors; licensee Molecular Diversity Preservation International, Basel, Switzerland.