Pengaruh Tekanan Press dan Temperatur Pemanasan Awal Terhadap Perolehan Minyak Biji Mete dengan Metode Pengepresan Hidrolik (Hydraulic Pressing) (Effect of Pressure Press and Preheating Temperature on Cashew Seed Oil yield using Hydraulic Pressing Methode)

Abstract

Corn plants ( Zea mays ) is one of the world's most important pagan crops other than wheat and rice. Corn also has potential as a raw material of food industry, pharmaceutical chemicals and other industries yanng have a high value, such as corn starch, corn Gritz, corn oil, dextrin, sugar, ethanol, organic acids and other materials. With a view to the high content in corn oil content of about 30 % then the oil has the potential to be exploited. Method of extracting the oil from seeds consist of several ways, namely by rendering (wet and dry rendering rendering), extraction with solvents and the method mechanical pressing. The purpose of this thesis is to create a hydraulic press used for pressing the kernels so that the oil can be obtained from the pressing results. Hydraulic press machine has the main components of hydraulic jack with accompanying pengepressan tube, a pressure piston, handle, frame, and shelters oil. Grains which have undergone pre-treatment includes preheating and milling is divided into 4 sections. Each part is inserted first into the filter cloth is then inserted into the tube pengepress, after the material has been prepared, the screw began to be revealed and operated hydraulic began to pressing materials. Pressure readings done in the time before the oil started coming out of the material. Keywords : corn seeds, hydraulic press, corn seeds oil.