Palm kernel pressing one kind of is a two-time pressing. Another is pressing the palm kernels for the first time. After the embryos of the pressed cakes are processed and the embryos are cut into the extractor, residual oil is precipitated under the effect of the food-grade solvent extraction. Using the leaching/extraction method, the residual oil in the cake can be reduced to 0.5% and the oil extraction efficiency can be improved.
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