The oil is obtained generally through a cold-pressing process; however, sweet almonds can be pressed warmly. First, the almonds clean of impurities & loosed from their shells. The pre-cleaned seed is then lightly warmed to the press temperature and subsequently fed into a screw press.
What is almond oil extraction?
Almond oil extraction using supercritical fluids (CO2) & pressing (both hydraulic & screw press) provides a product that is fit for human consumption with the pleasant sensorial characteristics that belong the primary product (the almond), consequently, no refining is needed, making the product a virgin oil.
What is almond oil obtaining process?
Almond oil obtaining process is much related to the processes for obtaining other nut oils. The nut is harvested previously to the autumn rains start (August-September). After harvesting, the next step is de-hulling, consisting of the removal of the mesocarp that appears to adhere to the nut & has not been lost by falling from the tree.
How to extract oil from crushed almond seeds?
Oil from crushed almond seeds was extracted with supercritical CO2 at 350 bars & 40°C. Almond particles of 3 different mean sizes were tested. Extraction of the smaller particles was performed at 2 different solvent flow rates.