Palm Kernel Oil And Its Extraction Method
Online, June 17, 2013 (Newswire.com) - Palm tree, a kind of mostly widespread plant in areas like Southeast Asia, Africa, can bring two different oil to us: palm oil or palm fruit oil and palm kernel oil. Palm oil is extracted from outer palm fruit of a palm tree while palm kernel oil is got from inner nut, kernel or seed of a palm tree. It has many of its own uses and benefits.
Palm kernel oil is one of the few vegetable oils that are high in saturated fat, about 80% including short-chained caprylic at 3 to 4 percent and associated capric acid at 3 to 7 percent. These do not affect cholesterol, and caprylic acid is a component of human milk. It is high in lauric acid, up to 52 percent, one of the most common fatty acids in nature that is used in soaps, margarine and shampoos. It contains much oleic acid, a monounsaturated omega-9 fatty acid that decreases total cholesterol, LDL and tryglyerides. Linoleic acid, a polyunsaturated omega-6 fatty acid that must be consumed in the diet and cannot be synthesized by human metabolism, is present as about 2 percent of palm kernel oil. In the body, linoleic acid is converted to gamma-linoleic and alpha-linoleic fatty acid.
To get oil from palm kernel, you need special oil extracting machine s like a screw oil press or a integrated screw oil press. Before pressing, you also need to follow several steps. First, crush the palm kernel into small pieces with a crusher. Second, cook the crushed kernel with a roasting machine to decrease the moisture content. By doing this, oil yield can be improved. Third, transport the cooked palm kernel near the screw oil press and send them into the hopper with a bucket elevator to get ready for pressing. Then crude palm kernel oil will be got. While it may usually contains impurities or other matter which are not so healthy to human body. Usually, crude palm kernel oil need to be further processed wither by a special oil filtering machine(if you use an integrated screw oil press, oil will be filtered automatically for it contains filtering equipment ) or refined to remove the unhealthy matter in it. To oil manufacturers who intend to put their oil into large supermarkets or export abroad, the last oil refining step is a necessity. While for some small oil workshop, this step may be omitted.
Above are summed from the experience we have in our producing, adjusting, selling our machines and serving our customers. Some steps like oilseeds pre-processing or something else may be added according to your actual needs.