seed temperature screw oil processing plant in malawi

   
seed temperature screw oil processing plant in malawi
                                               
                                               
                                               
                                               
  • seed temperature screw oil processing plant in malawi
What happens during screw expeller processing of palm kernel seeds?

Heat transfer between the pressing chamber and the oil and oilcake streams during screw expeller processing of palm kernel seeds. Journal of Food Engineering, 31 (1), 1¨C7. Omobuwajo, T. O., Ige, M. T., & Ajayi, A. O. (1998). Theoretical prediction of extrusion pressure and oil flow rate during screw expeller processing of palm kernel seeds.

Does screw pressing increase oil yield?

Screw pressing of entire seeds leads to higher oil yields (maximum 85.7 % for entire seeds and maximum 72.01 % for dehulled seeds). Behavior according to moisture content is also different; for entire seeds, oil yield decreases with increasing moisture content whereas an optimum oil yield can be found for dehulled seeds.

How does seed production affect oil extraction process?

The increase in the quantity of seed being slightly lower than the increase in oil production, it demonstrates an improvement of oil extraction processes. Generally, the oil extraction is based on two main steps: pressing (solid¨Cliquid expression) and solvent extraction.

What are the pressing conditions for dehulled seeds?

The pressing conditions were different in order to optimize the press performances. Dehulled seeds were processed with 6-mm choke and 21-mm flight-to-flight distance for the screw, and entire seeds were also processed with 6-mm choke but with a 16-mm flight-to-flight distance for the screw; a screw rotation speed of 24 rpm was used in both cases.