KR20030043167A - The manufacturing method for ginsenoside f1 with naringinase - Google Patents

Abstract

PURPOSE: A process for preparing ginsenoside F1 using naringinase is provided, thereby preparing the ginsenoside F1 in higher yields. CONSTITUTION: A process for preparing ginsenoside F1 using naringinase comprises the steps of: dissolving saponin of triol family isolated from ginseng or a mixture of the saponin of triol family in a water-soluble solvent or a mixed solvent of a water-soluble solvent and an organic solvent, adding naringinase isolated from Aspergillus niger or Penicillium sp. to the mixture, and reacting them with agitation in a hot water-bath; heating the reacted mixture in hot water to terminate the reaction when the substrate is exhausted; passing the reacted solution through the column packed with ion exchange resin, passing distilled water through the column to remove saccharides and enzymes, and eluting the reacted products adsorbed to the column with ethanol; concentrating the eluate; and subjecting the concentrate to the column chromatography to obtain ginsenoside F1, wherein the saponin of triol family is ginsenoside Re, or ginsenoside Rg1; the reaction temperature is 20 to 50 deg. C; the water-soluble solvent is selected from water, acetic acid, phosphate, citrate, citrate-phosphate buffer solutions; and the organic solvent is selected from acetone, acetonitrile, dioxane, dimethyl sulfoxide, and lower alcohol.

Description

The manufacturing method of ginsenoside F1 using naringinase enzyme {THE MANUFACTURING METHOD FOR GINSENOSIDE F1 WITH NARINGINASE}

The present invention relates to a method for preparing ginsenoside F ₁ using naringinase enzyme.

Ginsenoside derivatives, which are pharmacologically active saponins unique to ginseng, are a combination of saccharides such as glucose, rhamnose, arabinose or xylose to protoparanaxadiol, or a protopanaxatriol, which is a triterpenoid of damalan. As a compound, about 34 derivatives from Korean ginseng have been identified to date.

In addition, ginseng saponins have been found to have different pharmacological effects depending on the type of sugars bound to aglycone, the number of saccharides bound to each other, or the position of binding.Ginseng saponin has a high content of ginseng and is easy to separate. Many studies have been carried out, but very few studies have been conducted on the pharmacological effects of trace saponins.

Ginsenoside F ₁ , a trace saponin, was reported to contain 0.4% in the leaves of Korean ginseng and 0.01% in the leaves of cultivated ginseng in Hiroshima, Japan. It is reported to be produced as a metabolite by intestinal bacteria.

Ginsenoside _{F 1 (20- 0 -β-glucopyranosyl} -20 (S) -protopanaxatriol) is a compound represented by the formula (1) below.

On the other hand, the enzyme naringinase hydrolyzes the α-1,2 bond of glucose and the nanoginine (Naringenin-7-glucorhamnoside) of citrus fruits, which is a bitter taste of naringenin-7-glucoside. As an enzyme to generate | occur | produce, it is extracted and used by Aspergillus niger.

Conventionally, as a method for preparing ginsenoside F ₁ , 100 mg of ginsenoside Rg ₁ standard is orally administered to rats, followed by extracting metabolites from the contents of the colon, and detecting almost the same amount of ginsenoside F ₁ and Rh ₁ by TLC method. Has been reported.

In addition, 153 mg of ginsenoside F ₁ was prepared from the reaction solution by reacting 300 mg of ginsenoside Rg ₁ standard with 100 mg of enzyme hesperidinase (Chem. Pharm. Bull. 31 (10), 3691). , T. Odani et al., 1983).

However, these methods have not only a low yield of ginsenoside F ₁ but also have a complex and difficult process that requires various steps of separation and purification.

In Korean Patent Application No. 10-1991-016456 (new material 20 (R) -ginsenoside Rh ₂ ), an acid hydrolysis method is known as a method for preparing ginsenoside Rh ₁ or Rh ₂ , which are trace saponins contained only in red ginseng. However, since acid hydrolysis decomposes the glycoside linkage of the aglycone C ₂₀ position of ginsenoside, it is difficult to prepare ginsenoside F ₁ in which glucose is bonded to the C ₂₀ position of the protopanaxatriol. .

Korean Patent Application No. 10-1996-046168 (20 (S) -ginsenoside R1 and 20 (S) -protopanaxatriol manufacturing method) is a filed by the applicant of the present invention, the tree of ginseng saponin It has been disclosed that ginsenoside Rh ₁ can be obtained in high yield by restructuring the all-system saponin Re and Rg ₁ , but this method decomposes the glycoside bond of the aglycone C ₂₀ position of ginsenoside. It is difficult to prepare ginsenoside F ₁ in the form of a single molecule glucose-linked to the C ₂₀ position of panaxartriol.

An object of the present invention, ginsenoside F, a ginsenoside Re, Rg ₁ and mixtures thereof, or a ginseng extract having a high triol saponin content, using ginsenoside F, a major triol saponin contained in a large amount of ginseng _It is to provide a method for producing ₁ in a high yield.

1 is a manufacturing process of the ginsenoside F ₁ of the present invention.

The present invention relates to a method for preparing ginsenoside F ₁ using naringinase enzyme.

The inventors of the present application, ginsenoside F ₁ is a compound in which a molecule of glucose is bonded to the C ₂₀ position of the protopanaxatriol sapongenin, as shown in the formula (1), C of the ginsenoside Re or Rg ₁ component _The experiment was repeated with the understanding that the cleavage of all glycoside bonds in the C ₆ position except for one molecule of glucose in the ₂₀ position is converted to ginsenoside F ₁ .

As a result of various experiments using enzymes isolated from various microorganisms, when naringinase enzyme isolated from Aspergillus niger or penicillium microorganism was reacted with ginsenoside Re, Rg ₁ or a mixture thereof, It was found that ginsenoside F ₁ was produced in a high yield of 80% or more, and the present invention was completed through several experiments.

The present invention has the common use of naringinase enzyme, and has three methods depending on the separation method.

The composition of Method 1 of the present invention is to dissolve a triol saponin or a mixture of triol saponins extracted from ginseng in an aqueous solvent or a mixture of an aqueous solvent and an organic solvent, which is separated in Aspergillus niger or penicillium. Adding a naringinase enzyme and reacting with stirring in a warm water bath; periodically checking the reaction solution by thin layer chromatography; and heating the substrate in hot water to terminate the reaction when the substrate is completely lost; The reaction solution was adsorbed on a column packed with an ion exchange resin and the sugars and enzymes were washed with distilled water to remove the reaction product. The reaction product was eluted with ethanol and concentrated, followed by column chromatography to obtain ginsenoside F ₁ . It consists of steps.

The structure of the method 2 of this invention is the naringinna which melt | dissolved the triol saponin or the mixture of triol saponins extracted from ginseng in the aqueous solvent or the mixed solution of the aqueous solvent and the organic solvent, and isolate | separated in Aspergillus niger or penicillium. Adding the first enzyme and reacting with stirring in a heated water bath; periodically checking the reaction solution by thin layer chromatography; terminating the reaction by heating in hot water when the substrate is completely lost, and the reaction product is water. Mixing with saturated butanol to obtain a butanol layer of the upper layer in which ginsenoside F ₁ is eluted, and separating the concentrated phase by column chromatography to obtain ginsenoside F ₁ .

The structure of the method 3 of this invention is the naringina which melt | dissolved the triol saponin or the mixture of a triol saponin extracted from ginseng in the aqueous solvent or the mixed solution of the aqueous solvent and the organic solvent, and isolate | separated in Aspergillus niger or penicillium. Adding the first enzyme and reacting with stirring in a warmed water bath; periodically checking the reaction solution by thin layer chromatography; terminating the reaction by heating in hot water when the substrate is completely lost; Is adsorbed on a column packed with an ion exchange resin, and the sugars and enzymes are washed with distilled water to remove them.The reaction product is eluted with ethanol and concentrated. The concentrate is prepared, and then concentrated again until it becomes powder. Obtaining a ginsenoside F _{1 high content} .

Hereinafter, a method for preparing ginsenoside F _{1 according} to the present invention will be described in detail with reference to FIG. 1.

<Process of Method 1>

First process triol-based saponin dissolution

Ginsenoside Re, Rg ₁ and mixtures thereof or ginseng extracts having a high content ratio thereof are dissolved in an aqueous solvent or a mixture of an aqueous solvent and an organic solvent.

The triol-based saponins of ginseng used herein are those obtained by extracting and separating from Korean ginseng, samchil ginseng, American ginseng, bamboo shoot ginseng, Himalayan ginseng or Vietnamese ginseng.

The aqueous solvent is selected from buffers of water, acetic acid, phosphoric acid, citrate, and citrate-phosphoric acid, and a buffer solution having a pH of 3 to 7, especially a pH of 4 to 6 is preferable.

The above-mentioned aqueous solvent may be used alone, or may be used in combination with other aqueous solvents and organic solvents. The organic solvent used for mixing should be one that does not lower the activity of the enzyme while being mixed with water.

Preferred organic solvents include acetone, acetonitrile, dioxane, dimethyl sulfoxide, methanol, ethanol, 1-propanol, 2-propanol, etc., and the amount of the organic solvent is 2 to 30% based on the substrate used. .

2nd process enzyme reaction

Naringinase isolated in a microorganism Aspergillus niger or penicillium is added to a triol-based saponin solution, and it is stirred for 1 to 72 hours in a 20-50 degreeC water bath, and an enzyme reaction is carried out.

The reaction temperature should be a temperature condition at which enzyme inactivation does not occur, preferably 50 ° C. or less when only an aqueous solvent is used, and 40 ° C. or less when a mixed solution of an aqueous solvent and an organic solvent is used.

The reaction time is not particularly limited as long as the activity of the enzyme is maintained, but 1 to 72 hours, preferably 24 to 48 hours is appropriate.

Termination of the third process enzyme reaction

After periodic confirmation by thin layer chromatography, the substrate is completely lost, and heated in a boiling water bath for 10 minutes to inactivate the enzyme to obtain a reaction solution mainly containing ginsenoside F ₁ .

4th process sugar and enzyme removal

After the reaction solution is adsorbed on a column packed with ion exchange resin, sugars and enzymes are removed by washing with distilled water.

Elution in Ethanol 5th Process

The reaction solution from which sugars and enzymes are removed is eluted in ethanol.

6th process concentration

The ethanol eluate is concentrated to give a concentrate.

7th Process Column Chromatography

The concentrate is separated by column chromatography to give ginsenoside F ₁ .

<Process of Method 2>

The first to third processes of method 1 are performed in the same way.

4th process mixed with saturated butanol

The reaction solution obtained in the third step is mixed with saturated butanol to elute ginsenoside F ₁ .

Obtained the fifth process butanol layer

In the solution divided into the upper butanol layer and the lower water layer, the water layer containing sugars and enzymes is discarded to obtain a butanol layer eluted with ginsenoside F ₁ .

The sixth process concentration of the method 1 and the seventh process column chromatography were performed to obtain ginsenoside F ₁ .

<Step 3 of the process>

The first to sixth steps of method 1 are performed in the same way.

7th process reconcentration

The concentrate obtained in the sixth step is reconcentrated until it is powdered to obtain a high content of ginsenoside F ₁ .

Hereinafter, the present invention will be described in more detail with reference to Examples, but these are not intended to limit the scope of the present invention.

Example 1 Preparation of Ginsenoside F ₁ Using Ginsenoside Re (Method 1)

1 g of ginsenoside Re was dissolved in 0.1 M acetic acid buffer (pH 5.0) to make the whole 50 ml.

To this, 3 g of naringinase isolated from Aspergillus niger was added, and reacted for 48 hours, stirring in a 37 degreeC water bath.

It was confirmed that the substrate was completely lost by thin layer chromatography, and the reaction was terminated by heating in hot water for 10 minutes.

After adsorbing the column packed with DIION HP-20 resin, sugars and enzymes were removed by washing with distilled water.

The column adsorbate was eluted with ethanol and then concentrated.

The concentrate was separated by silica gel column chromatography (chloroform: methanol = 10: 1) to give 343 mg of ginsenoside F ₁ .

Example 2 Preparation of Ginsenoside F ₁ Using Ginsenoside Rg ₁ (Method 1)

1 g of ginsenoside Rg ₁ was dissolved in phosphate-citrate buffer (pH 5.5) to make up the whole to 50 ml.

To this, 4 g of naringinase isolated from Aspergillus niger was added and reacted for 72 hours with stirring on a 40 degreeC water bath.

The reaction solution was heated in hot water for 10 minutes to terminate the reaction.

The reaction solution was adsorbed onto a column packed with DIION HP-20 resin, washed with distilled water, eluted with ethanol and concentrated.

The concentrate was separated by silica gel column chromatography (chloroform: methanol = 87: 13) to give 394 mg of ginsenoside F ₁ .

Example 3 Preparation of Ginsenoside F ₁ Using Ginsenoside Rg ₁ (Method 2)

1 g of ginsenoside Rg ₁ was dissolved in phosphate-citrate buffer (pH 5.5) to make up the whole to 50 ml.

To this was added 4 g of naringinase separated in penicillium and reacted for 72 hours with stirring on a 40 ° C water bath.

The reaction solution was heated in hot water for 10 minutes to terminate the reaction.

50 ml of saturated butanol was mixed with the reaction mixture, and the mixture was extracted.

An upper butanol layer was obtained and then concentrated.

The concentrate was separated by silica gel column chromatography (chloroform: methanol: water = 70: 30: 5) and reverse phase C ₁₈ column chromatography (85% methanol) to obtain 378 mg of ginsenoside F ₁ .

Example 4 Preparation of Ginsenoside F ₁ Using Ginsenoside Rg ₁ (Method 2)

1 g of ginsenoside Rg ₁ was dissolved in phosphate buffer (pH 4.5) to make up the whole to 50 ml.

3 g of naringinase isolated in penicillium were added and reacted for 72 hours, stirring in a 40 degreeC water bath.

The reaction solution was heated in hot water for 10 minutes to terminate the reaction.

50 ml of saturated butanol was mixed with the reaction mixture, and the mixture was extracted.

An upper butanol layer was obtained, and then concentrated under reduced pressure.

The concentrate was separated by silica gel column chromatography (chloroform: methanol = 10: 1) and reverse phase C ₁₈ column chromatography (82% methanol) to give 410 mg of ginsenoside F ₁ .

Example 5 Preparation of Ginsenoside F ₁ Using Ginsenoside Re, Rg ₁ Mixture (Method 2)

1 g of ginsenoside Re, Rg ₁ mixture was dissolved in citrate buffer (pH 5.0) to give a total volume of 50 ml.

3 g of naringinase isolated from Aspergillus niger was added and reacted for 72 hours, stirring in a 50 degreeC water bath.

The reaction solution was heated in hot water for 10 minutes to terminate the reaction.

50 ml of saturated butanol was mixed with the reaction mixture, and the mixture was extracted.

An upper butanol layer was obtained and then concentrated.

The concentrate was separated by silica gel column chromatography (chloroform: methanol = 10: 1) to give 325 mg of ginsenoside F ₁ .

Example 6 Preparation of Ginsenoside F ₁ Using Ginseng Root Containing Triol Saponin (Method 2)

1 g of the irradiated saponin fraction, which was isolated from ginseng root mainly containing triol-based saponins, was dissolved in phosphate buffer (pH 4.5) to give a total volume of 50 ml.

To this was added 4 g of naringinase separated in penicillium, and reacted for 48 hours while stirring in a 42 degreeC water bath.

The reaction solution was heated in hot water to terminate the reaction.

50 ml of saturated butanol was mixed with the reaction mixture, and the mixture was extracted.

An upper butanol layer was obtained, and then concentrated under reduced pressure.

The concentrate was separated by silica gel column chromatography (chloroform: methanol = 9: 1) and reverse phase C ₁₈ column chromatography (85% methanol) to obtain 245 mg of ginsenoside F ₁ .

Example 7 Preparation of Ginsenoside F _{1 High} Content Using Ginsenoside Re (Method 3)

1 g of ginsenoside Re was dissolved in 0.1 M acetic acid buffer (pH 4.0) to make the whole 50 ml.

To this, 3 g of naringinase isolated from Aspergillus niger was added, and reacted for 48 hours, stirring in a 37 degreeC water bath.

It was periodically checked by thin layer chromatography to confirm that the substrate was completely lost, and the enzyme reaction was terminated by heating in hot water for 10 minutes.

The reaction solution was adsorbed onto a column packed with DIION HP-20 resin, and then the sugars and enzymes were removed by washing with distilled water.

The resin column adsorbate was eluted with ethanol and concentrated.

Re-concentrated to a concentrated liquid be a powder-form, ginsenoside F ₁ a to give a 80% or more and containing a ginsenoside F ₁ howler artifacts.

According to the present invention, there is provided a method for producing a high yield of ginsenoside F ₁ in a short amount of time without undergoing a process of separating the triol-based saponin as a reaction material into a high purity pure product.

Claims (8)

Triol saponins or a mixture of triol saponins extracted from ginseng, Dissolving in an aqueous solvent or a mixture of an aqueous solvent and an organic solvent, adding naringinase enzyme isolated in Aspergillus niger or penicillium, and enzymatically reacting with stirring in a warm water bath; Periodically checking the reaction solution by thin layer chromatography to terminate the reaction by heating in hot water when the substrate is completely lost; Adsorbing the reaction solution on a column packed with an ion exchange resin, saccharides and enzymes are washed off with distilled water, and the reaction product is eluted with ethanol, Concentrating the eluate, Consisting of a concentrated solution by column chromatography and to obtain a ginsenoside F _1, ginsenoside method for manufacturing a side-F _1. According, ginseng, ginseng, thirty-seven ginseng, American ginseng, Panax notoginseng, Panax ginseng's Hi dry method for producing a selected one of a Vietnamese ginseng is characterized, ginsenoside F ₁ in claim 1. The method of claim 1, wherein the tree olgye saponin ginsenoside Re, or a method for producing a binary, ginsenoside F ₁ characterized in ginsenosides Rg _1. According to claim 1, wherein the method of producing a temperature in the enzyme reaction is characterized in that 20 ~ 50 ℃, ginsenoside F _1. In aqueous solvents include water, acetic acid, phosphoric acid, a citrate, the citrate of claim 1, wherein - method of producing a ginsenoside F _1, characterized in that one selected from a phosphate buffer solution. The method of claim 1, wherein the organic solvent is acetone, method of acetonitrile, dioxane, dimethyl sulfoxide, ginsenoside F, characterized in that one selected from among lower alcohols _1. Triol saponins or a mixture of triol saponins extracted from ginseng, Dissolving in an aqueous solvent or a mixture of an aqueous solvent and an organic solvent, adding naringinase enzyme isolated in Aspergillus niger or penicillium, and enzymatically reacting with stirring in a warm water bath; Periodically checking the reaction solution by thin layer chromatography to terminate the reaction by heating in hot water when the substrate is completely lost; Mixing the reaction solution with saturated butanol and obtaining a butanol layer in the upper layer in which ginsenoside F ₁ is eluted, Concentrating the obtained product, Consisting of a concentrated solution by column chromatography and to obtain a ginsenoside F _1, ginsenoside method for manufacturing a side-F _1. Triol saponins or a mixture of triol saponins extracted from ginseng, Dissolving in an aqueous solvent or a mixture of an aqueous solvent and an organic solvent, adding naringinase enzyme isolated in an Aspergillus niger or penicillium, and performing enzymatic reaction while stirring in a warm water bath, Periodically checking the reaction solution by thin layer chromatography to terminate the reaction by heating in hot water when the substrate is completely lost; The reaction solution was adsorbed on a column packed with ion exchange resin, and then sugars and enzymes were washed off with distilled water, and the reaction product was eluted with ethanol and concentrated. A method for producing a ginsenoside F _{1 high content} comprising the step of re-concentrating the concentrate until a powder state to obtain a high content of ginsenoside F ₁ .