Method for extracting clerodendranthus spicatus

A technique of extracting kidney tea, which is applied in the field of extracting kidney tea, can solve the problems that the active ingredients of kidney tea are unstable when exposed to heat, easy to decompose, and reduce curative effect, so as to achieve less loss of active ingredients, improve curative effect, and reduce drug use. convenient effect

Inactive Publication Date: 2006-01-25
张凯
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Among the local people where the medicine is produced, the usual way of taking it is to brew boiling water directly and drink it as tea. Since the active ingredients of kidney tea are extremely unstable when exposed to heat, they are easily decomposed at high temperatures above 100°

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0009] Embodiment 1: take the crude product of kidney tea, remove the sundries, and break it into pieces. The kidney tea fragments were added to 3 times of water, extracted at a temperature of 40° C. for 2 hours, filtered, and the filter residue was extracted twice with 5 times of water under the same conditions, and the filtrates were combined for use. The filtrate was concentrated under reduced pressure to a density of 1.20 g / ml at a temperature of 90° C., and then spray-dried at 100° C. to obtain an extract of kidney tea. In this example, 170.0g of refined extract can be obtained per 1Kg of kidney tea raw material, and the color is tan.

Example Embodiment

[0010] Example 2: Take the crude product of kidney tea, remove foreign matter, and break it into segments. The kidney tea fragments were added to 5 times of water, extracted at a temperature of 90° C. for 2 hours, filtered, and the filter residue was extracted twice with 8 times of water under the same conditions, and the filtrates were combined for use. The filtrate was concentrated under reduced pressure to a density of 1.50 g / ml at a temperature of 90° C., and then vacuum-dried at 70° C. to obtain a kidney tea extract. In this example, 165.0g of refined extract can be obtained per 1Kg of kidney tea raw material, and the color is tan.

Example Embodiment

[0011] Embodiment 3: take the crude product of kidney tea, remove the sundries, and break it into pieces. The kidney tea fragments were added to 8 times of water, extracted at a temperature of 70° C. for 2 hours, filtered, and the filter residue was extracted twice with 3 times of water under the same conditions, and the filtrates were combined for use. The filtrate was concentrated under reduced pressure at a temperature of 90°C to a density of 1.40 g / ml, and then dried at a low temperature at 40°C to obtain the extract of kidney tea. In this example, 160.0g of refined extract can be obtained per 1Kg of kidney tea raw material, and the color is tan.

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PUM

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Abstract

A process for extracting the active components as beverage from Clerodenthus spicates includes such steps as providing raw material, removing impurities, cutting to become short segments, adding water, extracting at 30-100 deg C, filtering and drying.

Description

technical field [0001] The invention belongs to a method for extracting active ingredients of plants for medicinal use, in particular to a method for finely extracting active ingredients of herbal medicine kidney tea [Clerodendranthus spicatus (Thunb.) c.Y.Wu]. technical background [0002] Kidney tea is the dry whole plant of Clerodendranthus spicatus (Thunb.) C.Y.Wu, a plant of Lamiaceae. It is mainly distributed in Yunnan, Guangdong, Fujian and other provinces in China. It tastes sweet and slightly bitter, cool in nature, and has the functions of clearing away heat, removing stones and diuresis. In the mid-1980s, it was found that more than 94.5% of the phenolic components in the hot water extract of kidney tea were caffeic acid derivatives. Studies in recent years have suggested that phenolic compounds can inhibit the production of MDA (malondialdehyde) in human platelets. Therefore, it is believed that this type of compound has the effect of inhibiting the activity of ...

Claims

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Application Information

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IPC IPC(8): A61K36/00A61P13/12A61P13/04A61P7/10
Inventor 张凯
Owner 张凯
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