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Method of producing reduced coenzyme Q10

A reduction type, coenzyme technology, applied in the preparation of organic compounds, chemical instruments and methods, organic chemistry and other directions, can solve the problems of unfavorable economy, difficult reduction type coenzyme Q, increased burden, etc.

Inactive Publication Date: 2004-12-01
KANEKA CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, the inventors of the present application have initially studied the above-mentioned reduction method and found that the method is not easy to obtain high-quality reduced coenzyme Q with a higher yield. 10
[0005] The above-mentioned problems not only lead to economic disadvantages, but also cause problems such as contamination of oxidized coenzyme Q, which is difficult to remove, into the product. 10 and other quality issues
In addition, the heavy use of reducing agents will lead to an increased burden of reducing agent removal and decontamination of reducing agents, and produce some derived components
[0006] Thus, the disadvantages of the above-mentioned reduction reaction make further purification process more necessary

Method used

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Examples

Experimental program
Comparison scheme
Effect test

example 1

[0058] Stir 100 g of oxidized coenzyme Q at 48°C 10(purity 99.4%), when stirring (stirring power: 0.3kw / m 3 ) gradually add an aqueous solution as a reducing agent prepared by dissolving 80 g of sodium dithionite (purity: at least 75%) in 1100 g of 10w / w% brine, and make the reduction reaction at 48° C. and a pH value of 4 to 4 6 conditions. After two hours, another 1000 g of heptane was added and the aqueous phase was removed. Then the heptane phase was washed six times with 1000 g of saturated brine whose pH value was adjusted to 3 with hydrochloric acid to obtain reduced coenzyme Q 10 heptane solution. All the above operations were done under nitrogen atmosphere. Reduced coenzyme Q in heptane solution 10 / oxidized coenzyme Q 10 The weight ratio of is 99.5 / 0.5, and the reduced coenzyme Q in mol 10 The yield is 99%.

example 2

[0060] Except that the reaction was carried out in air, the reduced coenzyme Q was prepared in the same way as Example 1 10 Heptane solution in which reduced coenzyme Q 10 / oxidized coenzyme Q 10 The weight ratio of is 99.0 / 1.0, and the reduced coenzyme Q in mol 10 The yield is 99%.

example 3

[0062] Reduced coenzyme Q was prepared in the same manner as in Example 1, except that the aqueous solution (without adding sodium chloride) as a reducing agent was prepared by dissolving 80 g of sodium dithionite (purity: at least 75%) in 1000 m of water. 10 Heptane solution in which reduced coenzyme Q 10 / oxidized coenzyme Q 10 The weight ratio of is 99.4 / 0.6, and the reduced coenzyme Q in mol 10 The yield is 99%.

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PUM

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Abstract

The present invention relates to a method of conveniently and efficiently producing high-quality reduced coenzyme Q10 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. This method is suitable for industrial production thereof. A method of producing a reduced coenzyme Q10 which comprises reducing an oxidized coenzyme Q10 in an aqueous medium with the use of dithionous acid or a salt thereof, said reduction being carried out in the coexistence of a salt and / or under deoxygenated atmosphere, and at pH of 7 or below. Thus, the formation of the oxidized coenzyme Q10 as a by-product due to oxidation can be minimized, thereby giving reduced coenzyme Q10 having excellent qualities in a high yield.

Description

technical field [0001] The invention relates to a method for preparing reduced coenzyme Q 10 Methods. oxidized coenzyme Q 10 Compared to reduced coenzyme Q 10 Shows a higher oral absorption rate, and the compound can be used as beneficial food, functional nutritional food, special health food, nutritional supplement, nutrient, beverage, feed, animal drug, cosmetic, drug, therapeutic drug, preventive drug, etc. components. Background technique [0002] Known reduced coenzyme Q 10 The preparation method is as follows, coenzyme Q is prepared by conventional methods, such as synthesis, fermentation, or extraction from natural products 10 , and then concentrated to produce reduced coenzyme Q containing reduced coenzyme Q by chromatographic separation 10 Part of the eluate, that is, to obtain reduced coenzyme Q 10 (JP-A-10-109933). At this time, as described in the above citation, the reduced coenzyme Q can be reduced first with a reducing agent such as sodium borohydride ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07C41/26C07C43/23
CPCC07C41/26C07C43/23
Inventor 植田尚宏北村志郎上田恭义
Owner KANEKA CORP
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