• Can cold pressing produce high quality vegetable oil?
  • Provided by the Springer Nature SharedIt content-sharing initiative Cold pressing is frequently used to produce high-quality vegetable oils, especially from seeds with high oil content, such as rapeseeds. But, it encounters
  • How can hydraulic pressing improve oil recovery yield from different seeds?
  • The statistical optimization was performed using the response surface methodology (RSM) coupled with an experimental design, like Box-Behnken, rotatable central composite, and Taguchi designs. In addition, hydraulic pressing has been optimized statistically for maximizing the oil recovery yield from different seeds.
  • Why is cold pressed oil better than hot pressing?
  • Some presses come equipped with temperature control to prevent the oil from deteriorating. While cold pressing uses no thermal treatment of seeds before, during, or after the pressing [ 3 ], in the hot pressing method, seeds are preheated by cooking [ 4 ]. Hence, in general, the native properties of cold-pressed oil are better preserved.
  • How much rapeseed oil can be extracted by cold pressing?
  • A nozzle diameter of 10 mm, a screw frequency of 50 Hz, and a press head temperature of 80 ¡ãC ensured the maximum pressed rapeseed oil yield of 26.65% within the applied experimental domain. The crude oil extraction degree achieved by cold pressing was 60.8% of the rapeseed oil yield obtained by the Soxhlet method.
  • Could the Congo become an electricity exporter?
  • Almost all electricity generation today comes from hydropower and the Inga project has the potential to provide much more. If network constraints are addressed, Democratic Republic of the Congo could become an electricity exporter.
  • What is the mass flow rate of pressed rapeseed oil?
  • The temperature of the pressed oil at the exit from the press was 40 ¡ãC. The mass flow rate of the press cake and pressed rapeseed oil under these pressing conditions were 174?¡À?22 g/min and 52.7?¡À?0.1 g/min, respectively. Optimization of screw-pressing process factors can involve the oil recovery yield or quality properties.