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  • What is soybean oil production line?
  • The soybean oil production line is the process of treating soya bean with the press method or leaching method to obtain more crude oil and then refined to obtain edible refined oil. Pressed soybean oil has natural colors, aromas and flavors, and retains raw material’s various nutritious ingredients when comparing with the leached oil.
  • Are cold pressed soybean oils solvent-extracted?
  • Commercial soybean oils are commonly solvent-extracted and refined due to their high phosphatides contents. Hence, few studies exist on characterization of cold pressed soybean oils in the literature.
  • Why is cold pressed soybean oil a limiting factor?
  • However, the cold pressing technique does not allow to use high temperature processes, so that enzyme activity maintains in cold pressed soybean oils. This is the essential limiting factor for use of the cold pressing method in soybean oils. 3. Fatty acids and acyl lipids
  • What is pressed soybean oil?
  • Pressed soybean oil hasnatural colors, aromas and flavors, and retains raw material’s various nutritious ingredients when comparing with the leached oil. The physical pressing line requires raw materials to be carefully selected, and the soya bean is pre-treated through cleaning, crushing, softening, rolling and extruding.
  • Does cold pressed soybean oil contain trans fatty acids?
  • However, Brühl (1996) detected the presence of trans fatty acids (0.10%–0.15%) in cold pressed soybean oils. The author thus stated that trans fatty acids may occur due to high temperature drying of seeds before cold pressing and/or deodorization of cold pressed soybean oils or blending of cold pressed oils with refined ones.
  • What are the problems of cold pressed soybean oil?
  • The fundamental problem of cold pressed soybean oils is the lack of deactivation step of lipoxygenase isoenzymes, which impair the stability and quality of the oil. Therefore, Engeseth, Klein, and Warner (1987) suggested to apply tempering procedure to soybeans before oil extraction.