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  • What is physical & chemical refining?
  • Physical and chemical refining comes from the process technology that removes the FFA -free fatty acids responsible for the oil’s acidity. Physical refining is a process distillation of the FFA in the final deodorization refining step compared to the boiling point of the triglyceride oil.
  • What is edible oil refining?
  • Edible oil refining is normally a high volume, continuous operation. The reagent additions are traditionally carried out using low shear static mixers or inline agitators, which can lead to several potential problems:
  • What is a chemical refining method?
  • The old chemical refining method was a caustic treatment for removing all PL and free fatty acids from oils. This step transforms the oil’s FFA into the soap to help produce an emulsion to remove the NHP. The soap emulsion and hydratable PL trap massive oil in the separation step. As a result, this method is not recommended economically.
  • What are edible oils made of?
  • Edible oils obtained from coconut, corn, cottonseed, olive, palm, peanut, soybean and sunflower, etc. contain gums and other impurities which are removed by degumming, neutralizing and bleaching processes. The basic principle of these processes can be summarized as follows: