• What are the advantages of Physical refining of sunflower oil?
  • Physical refining has several advantages compared to the classical chemical one. This process is more economical (improved yield, lower investment cost, less chemicals used) environmental friendly process (no soapstock to be treated, splitted) but more sensitive to the crude oil quality. Physical refining of sunflower oil is discussed in details.
  • How to refine sunflower oil?
  • Physical refining of sunflower oil is discussed in details. Recent developments in the field of processes, equipment and control have made it possible to refine by physical way the high phosphatide containing seed oils as well.
  • What is a large capacity sunflower oil refining line?
  • Huge capacity sunflower oil physical refining lines are successfully operating in different countries using the developments of last decades resulting in better processes, more suitable adsorbent, high capacity equipment with really improved performance producing high quality refined sunflower oil in a more economic and environmental friendly way.
  • How many sunflower oil samples were refined and cold pressed?
  • In the quality monitoring of 18 sunflower oil samples from the EU market, 14 were refined and 4 were cold-pressed.
  • Why is crude sunflower oil difficult to refine?
  • Crude sunflower oil which has reached a certain level of oxidation, is difficult to refine. There are two main difficulties: – removal of non-hydratable phospholipids/iron; – and sometimes when the autooxidation has really gone too far fix colour formation, which is not removable by bleaching and/or heat bleaching.
  • Can you buy crude sunflower oil from a foreign country?
  • New techniques like countercurrent bleaching and electrofiltration (?HMI) are under development (11). Purchasing crude sunflower oil (or seed) from certain countries involves the risk of PAH¡¯s (polyaromatic hydrocarbons) contamination, originated from direct fuel gas drying of the seeds or from environmental pollution.