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  • How do you Defat a soybean?
  • Organic solvent To defat the soybeans by organic solvent extraction, soybean seeds were first coarsely milled into soy grits with a pin mill (LV 15 M, Condux-Werk, Germany).
  • How are whole soybeans defatted?
  • Alternatively, whole soybeans were defatted by a single-screw oil press (KK20F Universal, KernKraft, Germany). During pressing, cooling was applied to maintain the temperature at 60 °C and thus avoid possible heat damage. The throughput of the press was 660 g soybeans per hour.
  • What are alternative soybean defatting techniques?
  • A review of alternative soybean defatting techniques is carried out through the description of four main technological approaches including: (1) alternative organic (carbon-based) solvent extraction, (2) aqueous extraction, (3) supercritical carbon dioxide (SC-CO2) extraction, and (4) enzymatically aided extraction.
  • What is the difference between chemical extraction and defatted soybean flakes?
  • While in chemical extraction we have the oil as primary product and defatted (white) soya flakes as a by-product. Although prior to WWII hard pressing soybeans was common, direct solvent extraction (without prepressing) is now the most widely used method for processing soybeans.
  • What is defatted soy flour used for?
  • Defatted soy flour is used for making chunks. For this the defatted soy flour is crucial to facilitate dry milling required for dry fractionation. To defat the soybeans by organic solvent extraction, soybean seeds are first coarsely milled into soy grits with a mill.
  • What are the technological operations in the production of defatted soybean flakes?
  • As it has already been mentioned, within this stage in the production of defatted soybean flakes, we have a number of preparatory technological operations. These technological operations are: cleaning, weighting, drying, cracking/crumbling and dehulling, conditioning, flaking.