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  • What is a professional sunflower seed oil mill?
  • The professional sunflower seed oil mill is ZY24 (202-3) continuous oil extraction machine. In small and medium-sized vegetable oil plant, ZY24 (202-3) continuous pre-pressing machine is a popular equipment for pre-squeezing and leaching process.
  • What is sunflower seed processing?
  • Sunflower seed processing focuses on sunflower oil as the most valuable product. It is used as high-value oil in various food applications. The deoiled meal is considered a byproduct and is mostly used as animal feed. In 2011, annual world production of deoiled sunflower meal was at 16 million tons (FAO, 2013).
  • How is sunflower crushed for oil recovery?
  • Sunflower is crushed for oil recovery via one of two process methods, hard pressing or prepress solvent extraction. Hard pressing relies upon exerting high pressure on the prepared seed to separate oil from the solids fraction, historically recovering about 25% oil from the seed.
  • Why is prepress solvent extraction better than sunflower meal?
  • Because sunflower oil has a substantially higher economic value than sunflower meal, process economics improve significantly as the oil recovery yield increases. Therefore, prepress solvent extraction, with the highest oil recovery yield, is the process method utilized today for the majority of the sunflower seed that is crushed globally.
  • What is a prepress solvent extraction method in a sunflower crushing plant?
  • In a typical sunflower crushing plant using the prepress solvent extraction method, the initial steps of seed pre-cleaning and seed drying are located in the seed receiving section of the facility, prior to seed storage.
  • What is the hull content of sunflower seeds?
  • Botanical hull content of sunflower seeds varies between 25% and 30% and depends on the type of cultivar, seed size, and also climate conditions during growing. Hulls are very rich in crude fiber (50–60%) and contain only small amounts of proteins (4–6%) and oil (1–2%) as illustrated in Table 8.B.