| abstract |
The present invention provides the excellent crystallization method suitable for production on the industrial scale for obtaining the reduced coenzyme Q 10 crystal. n The high-quality reduced coenzyme Q 10 can be obtained in improving the slurry property and/or the crystallization yield by the method of present invention in which reduced coenzyme Q 10 is crystallized in an aqueous solution, in particular, the method of crystallizing the reduced coenzyme Q 10 by substituting an organic solvent solution containing the reduced coenzyme Q 10 by water, the method of crystallizing the oily reduced coenzyme Q 10 in an aqueous solution, or the like. |