Abstract: The present invention provides a stabilization method, a preservation method and the like method of reduced coenzyme Q10, which is useful as functional nutritive foods, specific health foods and the like. Furthermore, the present invention provides a method for efficiently obtaining reduced coenzyme Q10 of high quality and by a method suitable for a commercial production. It is possible to handle and stably preserve reduced coenzyme Q10 under a condition that oxidation by a molecular oxygen is inhibited by contacting reduced coenzyme Q10 with, an ascorbic acid and citric acid or a related compound thereof, and thus a stabilized composition is obtained. Moreover, reduced coenzyme Q10 is converted into a crystalline state in such a condition that the formation of oxidized coenzyme Q10 as a byproduct is minimized by crystallizing reduced coenzyme Q10 in the presence of ascorbic acid or a related compound thereof etc., and thus a reduced coenzyme Q10 crystal of high quality is produced.

Abstract: The present invention provides a stabilization method, a preservation method and the like method of reduced coenzyme Q10, which is useful as functional nutritive foods, specific health foods and the like. Furthermore, the present invention provides a method for efficiently obtaining reduced coenzyme Q10 of high quality and by a method suitable for a commercial production. It is possible to handle and stably preserve reduced coenzyme Q10 under a condition that oxidation by a molecular oxygen is inhibited by contacting reduced coenzyme Q10 with, an ascorbic acid and citric acid or a related compound thereof, and thus a stabilized composition is obtained. Moreover, reduced coenzyme Q10 is converted into a crystalline state in such a condition that the formation of oxidized coenzyme Q10 as a byproduct is minimized by crystallizing reduced coenzyme Q10 in the presence of ascorbic acid or a related compound thereof etc., and thus a reduced coenzyme Q10 crystal of high quality is produced.

Abstract: The present invention provides a stabilization method, a preservation method and the like method of reduced coenzyme Q10, which is useful as functional nutritive foods, specific health foods and the like. Furthermore, the present invention provides a method for efficiently obtaining reduced coenzyme Q10 of high quality and by a method suitable for a commercial production. It is possible to handle and stably preserve reduced coenzyme Q10 under a condition that oxidation by a molecular oxygen is inhibited by contacting reduced coenzyme Q10 with an ascorbic acid and citric acid or a related compound thereof, and thus a stabilized composition is obtained. Moreover, reduced coenzyme Q10 is converted into a crystalline state in such a condition that the formation of oxidized coenzyme Q10 as a byproduct is minimized by crystallizing reduced coenzyme Q10 in the presence of ascorbic acid or a related compound thereof, etc., and thus a reduced coenzyme Q10 crystal of high quality is produced.

Abstract: The present invention relates to a method for stabilizing reduced coenzyme Q10, which is useful as an ingredient in good foods, functional nutritive foods, specific health foods, nutritional supplements, nutrients, animal drugs, drinks, feeds, cosmetics, medicines, remedies, preventive drugs, etc., and to a composition therefor. The composition comprises reduced coenzyme Q10, a fat and oil (excluding olive oil) and/or a polyol, and doesn't substantially inhibit the stabilization of reduced coenzyme Q10. Additionally, the composition is a reduced coenzyme Q10-containing composition which comprises reduced coenzyme Q10, a polyglycerol fatty acid ester, and a fat and oil and/or a polyol.

Abstract: The present invention has its object to provide a method for stably preserving a capsule containing reduced coenzyme Q10, which is useful as foods, functional nutritive foods, specific health foods, nutritional supplements, nutrients, animal drugs, drinks, feeds, cosmetics, medicines, remedies, preventive drugs, etc. The present invention relates to a method for preserving reduced coenzyme Q10 which comprises producing or obtaining a capsule containing reduced coenzyme Q10, and controlling environment surrounding the capsule to a relative humidity of not less than 0% but not more than 60%. According to this method, reduced coenzyme Q10 can be preserved stably, without requiring huge cost and labor, or special equipment.

Abstract: The present invention provides reduced coenzyme Q10 with a low reduced coenzyme Q10 analog content, which is useful as a food, nutritional product, nutritional supplement, animal drug, drink, feed, cosmetic, pharmaceutical product, therapeutic drug, prophylactic drug and the like, and a production method of the reduced coenzyme Q10. The present invention also provides a method of producing a reduced coenzyme Q10 crystal or reduced coenzyme Q10-containing composition, which includes subjecting reduced coenzyme Q10 to chromatography under oxidation preventive conditions, or purifying oxidized coenzyme Q10 by chromatography and converting the oxidized coenzyme Q10 to reduced coenzyme Q10. According to this method, high quality reduced coenzyme Q10 containing not more than 1 wt %, relative to reduced coenzyme Q10, of at least one reduced coenzyme Q10 analog selected from the group consisting of cis-reduced coenzyme Q10, reduced coenzyme Q11 and ubichromenol, can be obtained.

Abstract: The present invention has its object to provide a method for stably preserving a capsule containing reduced coenzyme Q10, which is useful as foods, functional nutritive foods, specific health foods, nutritional supplements, nutrients, animal drugs, drinks, feeds, cosmetics, medicines, remedies, preventive drugs, etc. The present invention relates to a method for preserving reduced coenzyme Q10 which comprises producing or obtaining a capsule containing reduced coenzyme Q10, and controlling environment surrounding the capsule to a relative humidity of not less than 0% but not more than 60%. According to this method, reduced coenzyme Q10 can be preserved stably, without requiring huge cost and labor, or special equipment.

Abstract: The present invention has its object to provide a solid preparation containing reduced coenzyme Q10 with high stability by protecting reduced coenzyme Q10 against oxidization to oxidized coenzyme Q10 by molecular oxygen. The present invention provides a solid preparation containing reduced coenzyme Q10 which comprises a solid composition containing reduced coenzyme Q10 coated with at least one coating medium selected from among oil-soluble coating media and water-soluble coating media. The present invention also provides a method for stabilizing a solid preparation containing reduced coenzyme Q10, wherein a solid composition containing reduced coenzyme Q10 is coated with at least one coating medium selected from among oil-soluble coating media and water-soluble coating media to thereby stabilize the resulting solid preparation containing reduced coenzyme Q10.

Abstract: The present invention relates to a method for stabilizing reduced coenzyme Q10, which is useful as an ingredient in good foods, functional nutritive foods, specific health foods, nutritional supplements, nutrients, animal drugs, drinks, feeds, cosmetics, medicines, remedies, preventive drugs, etc., and to a composition therefor. The composition comprises reduced coenzyme Q10, a fat and oil (excluding olive oil) and/or a polyol, and doesn't substantially inhibit the stabilization of reduced coenzyme Q10. Additionally, the composition is a reduced coenzyme Q10-containing composition which comprises reduced coenzyme Q10, a polyglycerol fatty acid ester, and a fat and oil and/or a polyol.

Abstract: It is an object of the present invention to provide a method for producing a hydrophobic licorice extract which is useful for applications, such as food, food additives, functional nutritive food, food for specified health uses, dietary supplements, drink, feedstuff, drugs, and quasi-drugs, and which has satisfactory powder characteristics. This invention relates to a method for producing a hydrophobic licorice extract comprises performing extraction from licorice with a water-soluble organic solvent, the area of the bark of the licorice occupying at least 30% of the total surface area of the licorice. This invention also relates to a method for producing a hydrophobic licorice extract comprises crystallizing an extract extracted from licorice, or an extraction residue of the licorice, with a water-soluble organic solvent in a mixed solvent comprising water and the water-soluble organic solvent, the weight ratio, water/(water-soluble organic solvent+water), being ? or more.

Abstract: The present invention provides a stabilization method, a preservation method and the like method of reduced coenzyme Q10, which is useful as functional nutritive foods, specific health foods and the like. Furthermore, the present invention provides a method for efficiently obtaining reduced coenzyme Q10 of high quality and by a method suitable for a commercial production. It is possible to handle and stably preserve reduced coenzyme Q10 under a condition that oxidation by a molecular oxygen is inhibited by contacting reduced coenzyme Q10 with an ascorbic acid and citric acid or a related compound thereof, and thus a stabilized composition is obtained. Moreover, reduced coenzyme Q10 is converted into a crystalline state in such a condition that the formation of oxidized coenzyme Q10 as a byproduct is minimized by crystallizing reduced coenzyme Q10 in the presence of ascorbic acid or a related compound thereof, etc., and thus a reduced coenzyme Q10 crystal of high quality is produced.