KR102376747B1 - A circulation extractor and concentrator in a vacuum and low temperature - Google Patents

Abstract

The vacuum low temperature circulation extraction and concentrator of the present invention extracts the core components at a temperature at which the core components are not destroyed when extracting the core components from the raw materials, and extracts the core components of the raw materials for a period of time sufficient to extract the core components of the raw materials. By collecting the core ingredients again without blowing them away, the content of the core ingredients is high, and the convenience and cost-effectiveness of extraction are good. In addition, the concentration can be easily controlled by discharging water vapor through the steam pipe during concentration.

Description

A circulation extractor and concentrator in a vacuum and low temperature

The present invention relates to a vacuum cold circulation extractor and concentrator, and more particularly, to a vacuum cold circulation extractor and concentrator comprising a condenser.

In general, the method of extracting ingredients from raw materials is as follows. First, a raw material is selected, put in a non-woven fabric, burlap or a porous container, put in an extraction tank, an appropriate amount of purified water is put there, and after decoction for a predetermined temperature and time, it includes the step of filtering and sterilizing it.

Typically, vacuum cold extraction and concentrators include a heater, a vacuum pump, an evaporation tank, and a storage tank. Here, the evaporation tank puts vegetable raw materials (fruits, vegetables, pharmaceuticals, etc.) and purified water, uses the heat of the heater, heats the purified water, extracts the core components of the raw materials from it, and collects the extract from the storage tank. A vacuum pump draws air from the evaporation tank to create a vacuum.

A related patent includes a vacuum suction type herbal medicine extractor with registration number 10-0874559 (registration date December 10, 2008). The vacuum suction type herbal medicine extractor of this patent includes a heater, an evaporation tank (body), and a heat exchanger. The extraction efficiency of medicinal substances is improved by sending the vapor generated in the internal space of the evaporation tank in a vacuum state to a heat exchanger including a cooling fan, cooling it, and sending it back to the evaporation tank. The main characteristic configuration here is that the internal space of the evaporation tank becomes a vacuum state when purified water or extract becomes vapor during heating and rises. When the evaporation tank is in a vacuum state, the extract does not descend, so the extract descends as the cooling water is put back into the evaporation tank by the Benelui principle through another supply hose.

As can be seen, since purified water has to rise to the boiling point of 100 ℃, there is a problem in that the desired content cannot be obtained because the components to be extracted among the raw materials are destroyed. As an example, when red ginseng is fermented at a high temperature of 90℃ or higher, key components are destroyed, and it has been confirmed that the extraction is best when fermented for 72 hours with a near-infrared red ginseng extractor at 85℃.

Ginsenosides contained in red ginseng are compounds in which sugars such as glucose, rhamnose, arabinose or xylose are combined with protopanaxadiol and protopanaxatriol, which are triterpenoids of the damaran family. More than 30 derivatives have been identified. Major protopanaxadiol derivatives include ginsenosides Rb1, Rb2, Rc, Rd, Rg3, Rh2, Compound K, and the like. Major protopanaxatriol derivatives include Re, Rg1, and Rh1.

Among the ginsenosides of ginseng, Rg1 and Rb1 are designated as functional ingredients, that is, index ingredients in the Health Functional Foods Ordinance. Ginsenoside Rg1 has an immune function enhancing action, platelet aggregation inhibition, memory and learning function enhancement action, protein synthesis promotion action, anti-fatigue action, anti-stress action, vasodilator action, nerve cell survival promotion action, anti-inflammatory action, etc. it is known In addition, ginsenoside Rb1 has central inhibitory and mental stabilizing action, aggressive behavior suppression, analgesic action, high cholesterol lowering action, anti-anxiety action, nerve cell survival promoting action, memory improving action, platelet aggregation inhibitory action, lipid peroxidation inhibitory action, It is known to have a vasodilator action, an anti-inflammatory action, and a protective action against liver injury.

In addition to ginsenosides Rg1 and Rb1, ginseng contains other types of ginsenosides that control body functions, so the development of an extraction method that can increase the content of ginsenosides Rg1 and Rb1 while increasing the total ginsenoside content This is a necessary situation.

Patent Registration No. 10-2043433 (registration date, November 05, 2019) related thereto is a step of extracting red ginseng using water as a solvent in subcritical conditions of 70 to 130 bar for 6 to 20 hours at 60 ° C to 72 ° C; As a method for producing a red ginseng extract with increased ginsenoside content, comprising: 240 mg/L to 300 mg/L of the total ginsenoside content contained in the red ginseng extract, the sum of the contents of ginsenosides Rg1 and Rb1 is 127 It features a method for producing a red ginseng extract of mg/L to 180 mg/L.

It is simpler and cheaper to manufacture than the red ginseng extract currently prepared by this method, but the content of ginsenosides Rg1 and Rb1 needs to be higher.

Registration number 10-0874559 (Registration date December 10, 2008) Registration number 10-2043433 (Registration date November 05, 2019)

In the vacuum low-temperature extractor and concentrator, when extracting the core components from the raw material at a temperature at which the core components are not destroyed, and extracting for a time sufficient to extract the core components of the raw materials, the content of the core components is high, and the extraction A vacuum low-temperature extraction and concentrator with good work convenience and cost-effectiveness is required.

Accordingly, it is an object of the present invention to include a vacuum pump that vacuums the evaporation tank to lower the boiling point of purified water in the evaporation tank, to control the temperature of the evaporation tank so that key components are not destroyed when ironing the raw material, and to shorten the extraction time It is to provide a vacuum cold cycle extractor and concentrator comprising a controllable control unit.

Another object of the present invention is to provide a vacuum low-temperature circulation extractor and concentrator comprising a condenser that cools the core components, which start to be destroyed after a long time at the boiling point, which are extracted and scattered in steam before being destroyed.

Another object of the present invention is to provide a vacuum low temperature circulation extractor and concentrator for condensing vapor by supplying room temperature water to the condenser.

Another object of the present invention is to provide a vacuum low-temperature circulation extractor and concentrator for extracting ginsenosides Rb1 15mg/100mL, Rg1 9.5 mg/100mL, and Rg3 1.6 mg/100mL or more when the raw material is red ginseng.

The vacuum low-temperature circulation extraction and concentrator with a high content of key ingredients and good extraction operation convenience and cost-effectiveness is an evaporation tank that accommodates raw materials and purified water to extract raw materials, a heater that heats the evaporation tank, and vacuums the inside of the evaporation tank A vacuum pump for maintaining the furnace, one or more condensers connected to the evaporation tank to condense and liquefy the vapor, and a control unit for controlling them, wherein one condenser of the one or more condensers introduces the vapor extracted from the core component of the raw material A vapor pipe disposed at the upper end of the inlet side of the outer cylinder of the condenser, a cooling coil for liquefying the vapor, a liquid pipe disposed at the lower end at the outlet side for circulating the liquefied extract to the evaporation tank, and a liquid pipe at the upper end of the outer cylinder of the condenser wherein the other condenser is disposed at the upper end of the outer cylinder of the condenser and is at the lower end of the outlet side for sending a steam pipe connected to the steam pipe, a cooling coil for liquefying the vapor, and liquefied water to the purified water tank a liquid tube, wherein the water vapor tube is shut off during extraction, the heater maintains the evaporation tank at a temperature at which the key components of the raw material will not be destroyed, and the vacuum pump maintains the evaporation tank at a vacuum level at which the key components of the raw material will not be destroyed Cooling water at room temperature is poured into the cooling coil of the one condenser, and the purified water becomes steam to extract the core components of the raw material, and then liquefied in the one condenser to be changed into an extract solution and flowed into the evaporation tank, again vapor After extracting the core component of the raw material, the process of being liquefied in the one condenser, changing into the extract solution, and flowing into the evaporation tank is continuously circulated for a predetermined time, and during concentration, the steam pipe is connected to the steam pipe of the other condenser. and releases water vapor.

delete

In a preferred embodiment of the present invention, a vapor tube is connected to the upper end of the condenser and a liquid tube is connected to the lower end of the condenser. The condenser is inclined to allow the liquid to flow toward the liquid tube.

In a preferred embodiment of the present invention, a temporary tank is provided between the condenser and the evaporation tank.

In a preferred embodiment of the present invention, the control unit is capable of controlling the temperature of the evaporation tank and also controlling the extraction time so that the key components are not destroyed when the raw material is ironed.

In a preferred embodiment of the present invention, when the raw material is red ginseng, the temperature of the evaporation tank is 55° C. to 80° C. and the vacuum pressure is 760 mmHg.

In a preferred embodiment of the present invention, it is possible to prepare a concentrate of a predetermined concentration ratio by concentrating the raw material at the same time as extraction.

The vacuum low temperature circulation extraction and concentrator of the present invention extracts the core components at a temperature at which the core components are not destroyed when extracting the core components from the raw materials, and extracts the core components of the raw materials for a period of time sufficient to extract the core components of the raw materials. By collecting the core ingredients again without blowing them away, the content of the core ingredients is high, and the convenience and cost-effectiveness of extraction are good. In addition, it is possible to concentrate at the same time as extraction, so that the content of key ingredients can be increased.

1 is a perspective view of a vacuum low-temperature circulation extractor and concentrator of the present invention.
2 is an enlarged perspective view of the capacitor of the present invention.
Figure 3 is an enlarged perspective view for explaining the action of the condenser of the present invention during concentration.
4 is a perspective view of one preferred embodiment of the present invention;

Matters relating to the effects, including the technical configuration for solving the above problems of the low-temperature vacuum circulation extraction and concentrator according to the present invention will be clearly understood by the detailed description below with reference to the drawings in which a preferred embodiment of the present invention is shown.

In describing the present invention, if it is determined that a detailed description of a related known technology may unnecessarily obscure the gist of the present invention, the detailed description thereof will be omitted. That is, the description of the essential elements for the low-temperature vacuum circulation extractor and concentrator of the present invention, but not related to the characteristic configuration of the present invention, will be omitted.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those of ordinary skill in the art can easily practice the present invention.

Referring now to Figure 1, it is a perspective view of the low-temperature vacuum circulation extractor and concentrator of the present invention. The low-temperature vacuum circulation extractor of the present invention includes a heater ( 2 ), an evaporation tank ( 3 ), a condenser ( 4 ), a control unit ( 5 ), a radiator ( 6 ) and a vacuum pump ( 7 ).

Raw materials in the evaporation tank 3 (eg, including red ginseng, herbal medicines, and dried plants) Herein, red ginseng will be described as a preferred embodiment. And the purified water 10 is filled at the bottom. And the purified water is changed to an extract solution as the extraction time passes. A vacuum pump 7 is connected to the upper portion of the evaporation tank 3 to maintain the evaporation tank 3 in a vacuum state. If the raw material is inserted into the additional hole in the evaporation tank, the residue will remain in the hole in the future, so it is convenient to clean. More preferably, the perforated box is covered with a mesh cloth which is denser than the perforated perforation. In this case, since fine residues are also caught in the mesh cloth, a subsequent filtration process can be made unnecessary and the cleaning of the evaporation tank is facilitated.

A condenser 4 is provided at the upper end of the evaporation tank 3, and purified water evaporates in the evaporation tank to extract the core components of red ginseng in a vapor state and moves to the condenser 4 through the vapor pipe 8. The vapor is condensed in the condenser (4) before the core components are destroyed and is phase-transformed into a liquid, and then falls through the liquid pipe (9) by gravity and is mixed with purified water. Then there is an extract from which the key ingredients of red ginseng are extracted. The content of key components in the extract that has once passed through the condenser 4 is very low. By repeating this cycle, the concentration of the extract is thickened to increase the content of key components.

In the present invention, since purified water starts to cut off at about 60° C. in the evaporation tank 3 in a vacuum state, the energy consumption of the heater 2 is small, so that the manufacturing cost can be reduced. And in the present invention, it is possible to evaporate by heating the purified water or extract in the evaporation tank 3 to the temperature before the destruction of the core component of red ginseng, that is, about 85 ℃. In a preferred embodiment, the extraction temperature is 55 to 80 °C. In a more preferred embodiment of the present invention it is about 60°C. The higher the extraction temperature, the higher the concentration of the extract. In addition, the longer the extraction time, the higher the concentration of the extract. However, since the extraction temperature and extraction time are directly related to the manufacturing cost, it is desirable to lower the extraction temperature as much as possible and shorten the extraction time.

The present inventors conducted several experiments to find the best conditions for the content of ginsenosides Rb1 Rg1 and Rg3 in the core components of red ginseng for extraction temperature and extraction time.

In addition, even if the temperature of the cooling water in the condenser 4 is 15 to 20° C. when the extraction temperature is 60° C., it is found that the steam is liquefied before the destruction of the core components, and the cost of the radiator 6 connected to the condenser 4 can be greatly reduced.

2 is an enlarged perspective view of the capacitor 4 of the present invention. As shown in Fig. 2, the condenser 4 includes an outer cylinder and a cooling coil 41 provided therein, and a steam tube 8 extends through one hole at the upper end of the inlet side, and the lower end at the outlet side of the other end. A liquid pipe 9 for discharging the extract through the hole is connected. Cooling water circulates in the cooling coil 41 . The outlet of the steam pipe 8 is installed in the upper part of the outer cylinder of the condenser 4 , and as steam flows into the upper end and descends, heat exchanges with the cooling water of the cooling coil 41 to be liquefied. If the outlet is at the bottom, it is easy to be obstructed by the foam film when steam enters the condenser (4). And the outer cylinder is inclined toward the liquid pipe 9 so that the liquefied extract can freely fall by gravity. In addition, in order to speed up the extraction speed, a plurality of capacitors 4 may be installed in parallel. In a preferred embodiment, two capacitors 4 and 4' may be installed as shown in FIG. 3 .

At the upper end of the outer cylinder of one condenser 4 in FIG. 3, a liquid pipe 9' for discharging the extract and a corresponding steam pipe 20 are provided. During extraction, the valve of the steam pipe 20 is closed to shut off. During concentration, the valve of the steam pipe 20 is opened and the steam pipe 20 and the steam pipe 8 are connected. Then, the water vapor is cooled through the condenser 4' through the steam pipe 8' through the steam pipe 20, becomes purified water, falls through the liquid pipe 9', and flows into a purified water tank (not shown). The concentration ratio can be set according to the inflow amount of the purified water tank. For example, when 300 g of red ginseng is extracted with 11,000 cc of purified water, about 1,000 cc of purified water permeates into the red ginseng and is lost by burying it in the walls or grooves of other devices and pipes, and the extraction amount is 10,000 cc. In the case of concentrating it at a 1/2 concentration ratio, when the inflow amount of the purified water tank is 5,000 cc, the valve of the steam pipe 20 may be turned off. Since the steam pipe 20 is disposed at the upper end of the outlet side, since the steam having a high content of raw material has a high weight, it is liquefied from the inlet side of the condenser and goes to the liquid pipe 8. Preferably pure water vapor) is discharged out through the water vapor pipe 20 .

According to a feature of the present invention, the extractor and concentrator of the present invention refer to a device capable of acting as an extractor and capable of simultaneously extracting and concentrating.

For the convenience of use, the heater 2 , the evaporation tank 3 , the radiator 6 and the vacuum pump 7 are connected to a control unit 5 , by means of the control unit 5 , the evaporation tank 3 ) according to the set temperature and extraction time, the heating temperature and time of the heater 2 are controlled, the vacuum state of the evaporation tank 3 is controlled by the operation of the vacuum pump 7, and the temperature of the cooling water of the condenser 4 can be set and controlled by controlling the radiator (6).

After the predetermined extraction time has passed, the extract is sent to a storage tank (not shown) for filtration and sterilization through the discharge pipe 31 .

A preferred embodiment of the present invention is shown in FIG. 4 , and with reference to this, a temporary tank 11 is installed between the condenser 4 and the evaporation tank 3 . The primary extraction liquid is stored in the temporary tank 10 until the primary extraction operation due to the purified water in the evaporation tank 3 ends. At the end of the primary extraction operation, the valve 91 is opened and the primary extraction liquid flows into the evaporation tank 3 to start the secondary extraction operation. Until the secondary extraction operation is completed, the secondary extraction liquid is stored in the temporary tank 11 . At the end of the secondary extraction operation, the valve 91 is opened and the secondary extraction liquid flows into the evaporation tank 3 to start the third extraction operation. By repeating these operations in a cyclical way, the extraction content of the core component of red ginseng is increased.

Next, a preferred embodiment of the method for preparing the extract of red ginseng by the vacuum low-temperature circulation extractor of the present invention will be described in detail.

It includes the step of cutting and classifying red ginseng into a predetermined length and putting it into the evaporation tank 3 together with purified water. Here, the ratio of purified water and red ginseng is 15 to 25: 1 by weight. In the present invention, 6L (6000cc) of purified water was used for 150g of red ginseng body and 150g (300g, one chae) of red ginseng.

In the control unit 5, the temperature of the evaporation tank 3 is set to 60 ° C, extraction time 24 hours, vacuum pressure 760 mmHg (0 atm), the temperature of the cooling water in the condenser is set to 20 ° C, and the operation start button is pressed. .

When the vacuum low temperature circulation extractor operates, the evaporation tank 3 is brought into a vacuum state by the vacuum pump 7 and purified water is boiled by the heater 2 . Because it is in a vacuum state, purified water evaporates at about 60°C, passes through red ginseng, extracts the key ingredients, and forms bubbles and emits. The steam from which the core components are extracted rises through the steam tube 8 and reaches the condenser 4, and the steam is liquefied as it goes from left to right in FIG. Since the time until the vapor is liquefied is about 1 second, the extracted core component is not destroyed and is mixed with purified water through the liquid pipe 9 . If this process is carried out at a predetermined temperature for 24 hours, the purified water is changed to an extract having a high content of Rb1, Rg1 and Rg3.

The operator can obtain the desired extract without any special work after setting.

The red ginseng extract thus obtained was tested by the Jinan Red Ginseng Research Institute. The test results are as follows. The ginsenosides are Rb1 15.43 mg/100 mL, Rg1 9.85 mg/100 mL, and Rg3 1.69 mg/100 mL.

In comparison, the ingredients of the red ginseng extract extracted for 72 hours and 24 hours at 80℃ of the world of red ginseng are as follows.

72 hours: Rb1 0.57 mg/100 mL, Rg1 0.09 mg/100 mL and Rg3 0.22 mg/100 mL

24 hours: Rb1 0.12 mg/100 mL, Rg1 0.01 mg/100 mL and Rg3 0.14 mg/100 mL

As described above, in the present invention, the extract extracted at 60 ℃ after 24 hours extraction has a low heating temperature and a short extraction time, but the Rb1, Rg1 and Rg3 contents, which are the core components of ginsenoside, are significantly high.

The experimental results of 300 g of red ginseng, 5,500 mL of purified water, and about 4,500 mL of extraction at 60°C were the same at Daedong Korea Ginseng Co., Ltd.'s Technical Research Center.

division Jeong Kwan Jang 24 hours present Example 1 48 hours Example 2 Example 3 concentrated after adding 2500 mL of purified water to the extract of Example 2 BRIX 2.4 1.3 1.9 5.2 Rg1 0.02 0.05 0.09 0.21 Rb1 0.03 0.07 0.10 0.24 Rg3 0.05 0.00 0.00 0.01

As can be seen, in the examples carried out at 60° C. of the present invention, the content of Rg3 is low, which is not preferable.

The experimental results of 300 g red ginseng, 5,500 mL of purified water, and about 4,500 mL of extraction at 65°C were the same at Daedong Korea Ginseng Co., Ltd.'s technical research center.

division 24 hours present Example 4 48 hours Example 5 Example 6 concentrated after adding 11,000 mL of purified water to 75°C for 48 hours (1/3 concentration) BRIX 3.0 4.4 9.4 Rg1 0.07 0.09 0.14 Rb1 0.19 0.24 0.39 Rg3 0.00 0.01 0.11

As can be seen, better results were obtained at 65°C than at 60°C in the present invention, and better results were obtained at 75°C than at 65°C. And it was possible to derive better results in Example 6, which was extracted and concentrated by adding additional purified water after extraction. In this case, it shows that the components remaining in home ginseng are further extracted during further extraction and concentration.

Using 300g red ginseng and 5,500mL purified water, the experimental results in Jinan Red Ginseng Research Lab are as follows.

Vacuum low temperature mild extraction method of the present invention
60℃ 24 hours Vacuum circulation extraction method of the present invention 75 ℃ 48 hours
85 degrees 24 hours
Jeonggwanjang method
85℃ 24 hours Rg1 (mg/100mL) 2.41 14.61 5.64 Rb1 (mg/100 mL) 2.56 36.54 5.66 Rg3 (mg/100mL) 4.16 8.49 0.20

As can be seen, the content of Rg3, a useful component of red ginseng, is about 20 times different even at low vacuum compared to the Cheongkwanjang method. gone This can be seen how good the effect of the extraction method of the vacuum low temperature method of the present invention.

In the above, specific embodiments of the present invention have been described as examples, but these are for illustrative purposes only and are not intended to limit the protection scope of the present invention. It will be apparent to those of ordinary skill in the art to which the present invention pertains that various substitutions, modifications, and changes are possible within the scope of the present invention.

2: burner
3: Evaporation tank
4: Condenser
5: vacuum pump
6: Radiator
7: vacuum pump
8: steam tube
9: Liquid tube
10: purified water
11: temporary tank

Claims (7)

An evaporation tank containing raw materials and purified water for extracting raw materials, a heater for heating the evaporation tank, a vacuum pump for maintaining the inside of the evaporation tank in a vacuum state, one or more condensers connected to the evaporation tank and condensing and liquefying the vapor, and these In a vacuum cold circulation extractor comprising a control unit for controlling,
One condenser of the one or more condensers includes a steam tube disposed at the upper end of the inlet side of the outer cylinder of the condenser for introducing the steam extracted from the core component of the raw material, a cooling coil for liquefying the steam, and an outlet for circulating the liquefied extract to the evaporation tank A liquid pipe disposed at the lower side of the condenser and a water vapor pipe corresponding to the liquid pipe are included at the upper end of the outer cylinder of the condenser,
The other condenser is disposed on the upper end of the outer cylinder of the condenser and includes a steam pipe connected to the steam pipe, a cooling coil for liquefying the steam, and a liquid pipe at the lower end of the outlet side for sending the liquefied water to the purified water tank,
The water vapor pipe is cut off during extraction, the heater maintains the evaporation tank at a temperature at which the key components of the raw material will not be destroyed, and the vacuum pump maintains the evaporation tank at a vacuum level at which the key components of the raw material will not be destroyed, the one condenser Cooling water at room temperature is poured into the cooling coil of After extracting, the process of being liquefied in the single condenser, changing into an extract solution, and flowing into the evaporation tank is continuously circulated for a predetermined time,
At the time of concentration, the steam pipe is connected to the steam pipe of the other condenser to discharge water vapor, a vacuum low-temperature circulation extractor and concentrator. delete According to claim 1,
A vacuum low temperature circulation extractor and concentrator provided with a temporary tank between the condenser and the evaporation tank. According to claim 1,
A vapor tube is connected to the upper end of the condenser and a liquid tube is connected to the lower end, and the condenser is inclined to allow the liquid to flow toward the liquid tube. According to claim 1,
The control unit is a vacuum low-temperature circulation extractor and concentrator capable of controlling the temperature of the evaporation tank and also controlling the extraction time so that key components are not destroyed when ironing the raw material. According to claim 1,
When the raw material is red ginseng, the vacuum low-temperature circulation extractor and concentrator in which the temperature of the evaporation tank is set to 55°C to 80°C and the vacuum pressure is set to 760mmHg. According to claim 1,
A vacuum low-temperature circulation extractor and concentrator for producing a concentrate of a predetermined concentration ratio by concentrating the raw materials at the same time as extraction.

Images