Pressure-induced phase transition in soy oil

Compressibility studies of some vegetable oils up to 1 GPa

“…The experiments were carried out in a 17 mm chamber, as described in [1][2][3][4]. The chamber was connected to an automatic measuring multichannel system.…”

“…A possibility of irreversible changes caused by phase transitions observed in both fatty acids and their triglycerides is bringing the risk of such modifications, which can be dangerous for human health. The high-pressure properties of vegetable oils have been the subject of intensive research in our laboratory since 2004 [1][2][3][4][5][6] and are the continuation of earlier works on castor oil [7][8][9][10]. In all investigated oils, the first-order phase transition has been observed due to the solidification of those oils.…”

Relative permittivity behavior and temperature changes in linoleic acid during the phase transition

“…During the return to the initial phase temperature decreases and free dipoles align according to the electric field again. Analysis of the relative permittivity changes was our main tool which let us to investigate phase transitions in fatty liquids [4][5][6][7][8]. To find out more about the phenomenon that we deal with, the authors decided to consider investigated liquid using the Fröhlich theory of dielectrics [9].…”

Could RME biodiesel be potentially harmful to modern engine? solidification process in RME

“…Such phase transitions were observed first in castor oil [18] then in most of the vegetable oils used for production of biodiesel [19][20][21][22]. In all of them, a discontinuous phase transition has been observed [23][24][25].…”