(57) Abstract yaeyamaaoki (morinda shitorihuoria) the method where it extracts and refines the essential oil product, and the oil which are obtained from the plant and is disclosed. According to one feature, it dries the seed from the yaeyamaaoki fruit, dries desirably under moisture content 10%. It crushes the seed, or cuts off, it promotes the removal of the oil which it occurs naturally. It cut off or compressing the thin layer which was crushed, morinda shitorihuoriaoiru is made to discharge. The remaining seed cake the non-polarized extractant of food class, for example is mixed with Hexan next. Sufficient time heating the blend, it makes extraction process complete. It evaporates the extractant next from the blend, obtains morinda shitorihuoriaoiru. Oil furthermore refining, bleaching, drying, and deodorizing and, excludes the separation fatty acid and the component whose other things are not desirable. Adding the anti- oxidizer optionally, it is possible to be stabilized oil to further processing or one for packing.
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