abstract |
The object of the present invention is to provide a method of purifying reduced coenzyme Q 10 to produce a high-quality product which is useful as an ingredient in foods, functional nutritive foods, specific health foods, nutritional supplements, nutrients, animal drugs, drinks, feeds, cosmetics, medicines, remedies, preventive drugs, etc., by a efficient manner suitable for an industrial scale production. The present invention relates to a method of purifying reduced coenzyme Q 10 which comprises washing crystals and/or oil of reduced coenzyme Q 10 with a water-soluble organic solvent or a mixed solvent composed of a water-soluble organic solvent and water to thereby remove water-soluble impurities, especially a reducing agent or impurities derived from a reducing agent, from the crystals and/or oil of reduced coenzyme Q 10 . The present invention makes it possible to conveniently and efficiently purify reduced coenzyme Q1o in a manner excellent in operationality, and to obtain a high-quality reduced coenzyme Q 10 . |