PARAMETERS INFLUENCING THE SCREW PRESSING PROCESS OF OILSEED MATERIALS.

Vegetable oil, one of the most important component for both food and non-food industry, is contained by the oleaginous plants in seeds, pulp, stone fruits, in the tubers or sprouts. Depending on the nature of material and their oil content, various methods can be used for oil extraction from oleaginous material. Mechanical continuous presses are the most commonly used machines for the pressing of oleaginous materials in oil industry. These presses have the following advantages: continuous working, high working capacity, operating without major shocks and vibrations, easy adjustment of the working pressures, etc. The request for the vegetable oil increases as a result of the increasing number of applications that it can have. Thus, to satisfy the vegetable oil demand, it is necessary that the oil extraction methods to be faster and more efficient. Processes and phenomena that occur during the pressing process of the oleaginous materials are very complex. For the optimization the pressing process it is useful to know the main variables affecting the oil recovery and oil quality. This study aims to summarize the influence and impact of the main variables on the pressing of oilseed materials. [ABSTRACT FROM AUTHOR]