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Method for purifying condensate of tea extraction compound

A technology of tea extract and refining method, applied in the field of container-packed beverages, can solve the problems of deterioration of hue, lack of simplicity, heavy equipment load, etc.

Inactive Publication Date: 2007-06-20
KAO CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] However, the former is a technical solution related to supercritical extraction technology. In terms of process, the equipment load is too large, and in terms of industrial mass production, it lacks simplicity.
Moreover, this method has the problem of being unable to selectively remove only caffeine, which will cause changes in the composition of catechins as active ingredients.
In the latter method, caffeine can be selectively removed only by using activated clay or acid clay, but there are problems such as deterioration of hue.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0140] Embodiment 1, Comparative Examples 1-2

[0141] According to the conditions shown in Table 1, the caffeine in the caffeine-containing catechin composition was subjected to a treatment for removing caffeine.

[0142] The caffeine-containing catechin composition (POLYPHENON TM HG (manufactured by Tokyo Food Technology Co., Ltd.), the content of non-polymer catechins is 33.70% by weight, the content of caffeine is 5.5% by weight, the ratio of non-polymer catechins / caffeine=6.1, gallate is 50.7% by weight.

[0143] Approach

[0144] (1) Embodiment 1:

[0145] At normal temperature, with the stirring condition of 250rpm, 100g caffeine-containing catechin composition (POLYPHENON TM HG, manufactured by Tokyo Food Technology Co., Ltd.) was suspended in 490.9 g of 95% ethanol aqueous solution, and after adding 20 g of activated carbon (Kuraray COAL GLC, manufactured by Kuraray Chemical Co., Ltd.), stirring was continued for about 10 minutes. After dropping 409.1 g of 40% ...

Embodiment 2～3、 comparative example 3～4

[0157] According to the conditions shown in Table 2, the caffeine in the caffeine-containing catechin composition was subjected to a decaffeine treatment.

[0158] The caffeine-containing catechin composition (POLYPHENON TM HG (manufactured by Tokyo Food Technology Co., Ltd.), the content of non-polymer catechins is 33.70% by weight, the content of caffeine is 5.5% by weight, the ratio of non-polymer catechins / caffeine=6.1, and gallate is 50.7% by weight.

Embodiment 2

[0159](processing method of embodiment 2)

[0160] At normal temperature, under stirring condition of 250rpm, 100g caffeine-containing catechin composition (POLYPHENON TM HG, manufactured by Tokyo Food Technology Co., Ltd.) was suspended in 490.9 g of 95% ethanol aqueous solution, and 20 g of activated carbon (Kuraray COAL GLC, manufactured by Kuraray Chemical Company) and 100 g of acid clay (MIZKA ACE TM #600, manufactured by Mizusawa Chemical Co., Ltd.), stirring was continued for about 10 minutes. 409.1 g of 40% ethanol in water were added dropwise within 10 minutes, followed by continuous stirring at room temperature for 30 minutes. Then use No. 2 filter paper to filter the activated carbon and the precipitate, and then use a 0.2 μm membrane filter to filter again, and finally add 200 g of ion-exchanged water to the filtrate, and distill off ethanol at 40 ° C and 25 Torr to obtain the product.

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Abstract

A method of selectively removing caffeine from a caffeine-containing catechin compound composition, characterized by dissolving the caffeine-containing catechin compound composition in a mixed solution comprising an organic solvent and water in a weight ratio of from 9 / 1 to 1 / 9 and bringing the solution into contact with activated carbon or with activated carbon and either acid clay or activated clay; and a bottled drink containing a decaffeinated composition obtained by the method.

Description

[0001] (This application is a divisional application of the application 200380102268.6 submitted on October 27, 2003 with the title of invention entitled "Method for Decaffeination of Catechin Compositions Containing Caffeine") technical field [0002] The present invention relates to a method for selectively removing caffeine from a caffeine-containing catechin composition, and a container-packed drink containing the composition obtained by the method. Background technique [0003] It is known that catechins have effects such as inhibiting the increase of cholesterol and inhibiting the activity of α-amylase (for example, JP-A-60-156614, JP-A-3-133928). In order to achieve this physiological effect of catechins, adults need to drink 4 to 5 cups of tea a day. For this reason, in order to more easily ingest a large amount of catechins, a technology capable of blending catechins at a high concentration in beverages has been expected. [0004] However, although tea contains abo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A23F3/22A23F3/20A23L2/52A23L1/30A23L2/00A61K31/353
Inventor 小仓义和大石进福田昌弘高桥宏和板屋枝里小西敦
Owner KAO CORP
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