INFLUENCE OF SOME PARAMETERS OF SCREW PRESSES ON THE AMOUNT OF OIL OBTAINED FROM APRICOT SEEDS

Cilj ovog završnog rada je ispitati iskoristivost vijčane preše te utjecaj brzine okretaja vijka preše na količinu ulja sjemenke marelice. Pri provedbi pokusa smo razdijelili uzorke i odredili neke parametre; poput mase, vlage, količine bistrog ulja, pogače. Kako bi što točnije odredili količinu ulja, svi procesi su se bilježili i postupno se međusobno uspoređivali. Prema brzini rada stroja, najbolja brzina je niža, odnosno 20 okr./min.. Ta brzina je bolja zbog dobivanja veće količine ulja, a količina taloga iz smjese je znatno niža nego kod ostalih mjerenja. Pogača od sjemenke marelice je kod niže brzine manje mase, što prikazuje bolje iskorištavanje sjemenki, odnosno veću količinu dobivenog ulja.The aim of this final work is to examine the efficiency of the screw presses and the impact of the speed of the press screw on the amount of apricot seed oil. During the experiment we divided the samples and determined some parameters; such as mass, moisture, amount of fine oil, bread. To determine the amount of oil as accurately as possible, all the processes were recorded and gradually compared to each other. According to the speed of the machine, the best speed is lower, ie 20 rpm. This speed is better for obtaining a larger amount of oil, and the amount of residue from the mixture, is considerably lower than the other measurements. Cake from apricot seeds has a lower weight at a lower speed, which shows better seed utilization. It show a higher amount of oil obtained from seeds