Main Research Activities

Selection of the appropriate porous media

Experimental set-up used for the wicking experiments

Wicking rate of siloxane oils (S5, S10, S50 & S100) in the porous medium A and B. 

(A)

(B)

Snapshots presenting sunflower oil penetration at times 2, 12, 32 and 42 s in porous medium B as received and dry in comparison with samples put into contact with water vapours, oil vapours  and with samples fully wetted and then dried to 50% and 80% water saturation prior to the capillary penetration experiments. The temperature and time for the OV and WV samples correspond to the temperature and time the sample was put into contact with vapours.

Schematic representation of the apparatus developed for the determination of oil quality. A and B denote the beginning and end of liquid penetration.

Wicking rate of S10 in  a porous medium. a–c correspond to three repetitions with different pieces of the same material. h is the liquid penetration height, and t is the corresponding time. The coefficient of the equation for each repetition shows the wicking rate. R stands for the coefficient of determination of the points to the line.

Correlation of total polymers (Cpol) in sunflower and virgin olive oil samples with penetration time  for a penetration height of 1.5cm. Where R is the coefficitent of determination of the data points to the line.

Measurement and Analysis of Total polymer concentration in fresh and degraded oils via HPSEC

(a)

(b)

Chromatographs of whole oil of fresh  sunflower oil, (a) and of sunflower oil after 45 repeated frying batch of potato.