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Oil is recovered from a low oil content seed such as soyabean chiefly by

  • A.mechanical expelling on its own
  • B.steam distillation of the seed
  • C.centrifuging the crushed seed
  • D.solvent extraction with hexane

Answer: D

Pressing alone leaves too much oil in the cake when the seed contains under about twenty-five per cent. High oil seeds are usually pre-pressed and then solvent extracted to recover the remainder. Hexane is recovered and recycled in the plant.

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