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Method for preparing rhamnose by using rutin

A technology of rhamnose and rutin, applied in the field of flavonoid extraction, can solve the problems of low product purity, failure to meet international standards, incomplete utilization of resources, complicated and tedious processes, etc., and achieves complete hydrolysis reaction and shortened time The effect of shortening the production cycle and shortening the process flow

Inactive Publication Date: 2014-07-23
徐大鹏
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to overcome the existing problems such as complex and cumbersome process, long reaction time, low product purity that cannot meet international standards, pollution, and comprehensive utilization of resources in the existing method for preparing rhamnose, and to provide a method for using rutin Method for preparing rhamnose

Method used

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  • Method for preparing rhamnose by using rutin

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Step a: Collect 10kg of Sophora japonica flower buds (wet weight), steam the collected Sophora japonica flower buds in 100°C water vapor for 12 minutes to eliminate degradative enzymes, take out the steamed flower buds, dry them in sequence, crush them, and infiltrate them. A leaching solution containing 18% sodium carbonate, 20% sodium bisulfite, and 30% calcium chloride, the ratio of the leaching solution to Sophora japonica flower buds (wet weight) is 2.5L: 1kg, and the solution obtained after percolation is filtered to remove slag to obtain a crude extract.

[0026] Step b: Add the natural traditional Chinese medicine clarifier KBT-ZTC to the crude extract obtained in step a. The ratio of the flocculation clarifier to the crude extract is 3.0g:100L. After adding the flocculation clarifier, stir gently to make the flocculation clarifier Distribute evenly in the extract, and then let it stand for 25 minutes to precipitate impurities and remove precipitates. Add antiox...

Embodiment 2

[0031] Step a: Collect 10kg of Sophora japonica flower buds (wet weight), steam the collected Sophora japonica flower buds in 120°C water vapor for 10 minutes to eliminate degradative enzymes, take out the steamed flower buds, dry them in sequence, crush them, and infiltrate them. A leaching solution containing 15% sodium carbonate, 30% sodium bisulfite, and 40% calcium chloride, the ratio of the leaching solution to Sophora japonica flower buds (wet weight) is 3.0L: 1kg, and the solution obtained after percolation is filtered to remove slag to obtain a crude extract.

[0032] Step b: Add the natural traditional Chinese medicine clarifier KBT-ZTC to the crude extract obtained in step a, the ratio of the flocculation clarifier to the crude extract is 2.5g:100L, add the flocculation clarifier and stir gently to make the flocculation clarifier in the crude Distribute evenly in the extract, and then let it stand for 30 minutes to precipitate impurities and remove precipitates. Add...

Embodiment 3

[0037] Step a: Collect 10kg of Sophora japonica flower buds (wet weight), steam the collected Sophora japonica flower buds in 115°C water vapor for 13 minutes to eliminate degradative enzymes, take out the steamed flower buds, dry them in sequence, crush them, and infiltrate them. A leaching solution containing 30% sodium carbonate, 15% sodium bisulfite, and 30% calcium chloride, the ratio of the leaching solution to Sophora japonica flower buds (wet weight) is 2.0L: 1kg, and the solution obtained after percolation is filtered to remove slag to obtain a crude extract.

[0038] Step b: Add the natural traditional Chinese medicine clarifier KBT-ZTC to the crude extract obtained in step a, the ratio of the flocculation clarifier to the crude extract is 5.0g:100L, add the flocculation clarifier and stir gently to make the flocculation clarifier in the crude Evenly distribute in the extract, and then stand still for 20 minutes to precipitate impurities and remove precipitates. Add ...

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Abstract

The invention belongs to the field of extraction of flavonoid compounds, and in particular relates to a method for preparing rhamnose by using rutin. The method comprises the steps of extracting quercetin from collected sophora flower bud, producing hydrolyzed mother liquor, performing filtration, impurity removal and neutralizing treatment on the hydrolyzed mother liquor, degrading glucose by using glucose degrading enzyme, filtering and separating a solution, and then performing decolorization, vacuum centrifugal concentration and crystallization to obtain a product namely rhamnose. In the technological process, the rutin hydrolyzed mother liquor is subjected to comprehensive treatment at the same time, and is used for producing rhamnose; the hydrolyzed mother liquor from which quercetin is separated out is recovered, so that the production cost of the product is reduced, the possibilities of causing environment pollution are avoided, and the environment-friendly and energy-saving effects of the production are realized.

Description

technical field [0001] The invention belongs to the field of extraction of flavonoids, in particular to a method for preparing rhamnose by utilizing rutin. Background technique [0002] Rutin is a kind of flavonoid compound, which is widely distributed in plants in nature, and exists in roots, stems, leaves, flowers, fruits and seeds of many plants. Some commonly used traditional Chinese medicines, such as Sophora japonica, Rutaceae, Yangmai, Seabuckthorn, Ginkgo, Lycium barbarum, Motherwort, Bupleurum, Prunella vulgaris, Aloe, Eucalyptus leaves and tobacco leaves, etc. contain rutin. One of the important raw materials. [0003] Rhamnose is widely distributed in plants as a trace sugar. It can exist in many kinds of plant glycosides (such as quercetin, isohesperidin, etc.), polysaccharides, especially pectin and pectin in the form of sugar, and can also exist in anacardin. Rhamnose can be used to measure intestinal permeability, can be used as a sweetener, can also be...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C12P19/02C07D311/30
Inventor 徐大鹏
Owner 徐大鹏
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