Abstract The following physical tests were carried out for the vegetable oils (refractive index, relative viscosity, smoking point, density), as well chemical (saponification value, peroxide number, and acidity value), estimating amount of vitamin E percentage fatty acids. properties types under study, such value refractive between (1.478), highest flaxseed oil, lowest wheat germ which amounted...

The seeds of Nigella sativa L. (Ranunculaceae), commonly known as black cumin and Habat Al-barkah in Saudi Arabia, are used extensively for flavouring medicinal purposes. This work reported the study physiochemical properties seed oil (BCSO). results hexane extraction showed that rich (43.7%). All samples show high saponification values low unsaponification values. High iodine (122.7 mg/100 g) ...