TWM653178U - Freeze extraction device - Google Patents

Abstract

A cryoextraction device is used for extracting a water-containing sample and comprises a vacuum system, a condensation system, a communication pipe, and a temperature control unit. The vacuum system comprises a sample tank and a vacuum pump connected to the sample tank. The condensation system comprises a condensation tank and a condensation unit in the condensation tank. The temperature control unit is connected to the sample tank and the condensation tank. The water-containing sample is temperature-controlled by the temperature control unit and converted into a frozen sample. The frozen sample is sublimated and extracted by the vacuum system to obtain extraction gas. The extraction gas enters the condensation system and is converted into an extraction ice body by the condensation unit. The novel cryoextraction device can avoid the problems of reduction of flavor components and generation of odors during the extraction process, and can obtain an extract with a strong aroma.

Description

Cryoextraction device

The present invention relates to a cryoextraction device, in particular to a cryoextraction device for extracting a water-containing sample.

During the manufacturing process of beverages, extracts containing plant aromas need to be extracted from fresh plants such as tea leaves or fruits. However, the extract obtained by traditional high-temperature extraction technology may be affected by high temperature, solvent or other extraction conditions, resulting in the reduction of aroma components in the extract and giving the extract an odor, which also causes the extract to lose its original flavor. On the other hand, although low-temperature extraction technology can initially improve the above-mentioned shortcomings caused by high temperatures; however, low-temperature extraction is usually unable to fully extract the aroma components of plants. Take plants rich in fat-soluble essential oils such as citrus, lemon, and grapefruit as examples. , these plants cannot extract the fat-soluble essential oil components used to display fragrance after traditional low-temperature extraction, and the obtained extracts also lose their original essential oil fragrance.

Therefore, how to avoid the reduction of flavor components and the generation of odors during the preparation of plant extracts has become a goal that researchers in this field are working on.

The purpose of the present invention is to provide a cryoextraction device which can extract a water-containing sample under freezing and vacuum conditions and can solve the problems of aroma reduction and odor generation during the extraction process.

Therefore, the novel frozen extraction device is used to extract a water-containing sample and includes a vacuum system, a condensation system, a connecting tube, and a temperature control. The vacuum system includes a sample tank for placing the aqueous sample, and a vacuum pump connected to the sample tank, wherein the sample tank has a sample inlet, and a third valve for controlling the pressure in the sample tank. A pressure relief valve. The condensation system includes a condensation tank and a condensation unit located in the condensation tank, wherein the condensation tank has a discharge port and a second pressure relief valve for controlling the pressure in the condensation tank. The connecting tube communicates with the sample tank and the condensation tank. The temperature control is connected to the sample tank and the condensation tank. Wherein, the water-containing sample is converted into a frozen sample by adjusting the temperature of the temperature control. The frozen sample is sublimated and extracted by the vacuum system to obtain an extraction gas. The extraction gas enters the condensation system and is transformed into an extraction ice body through the condensation unit.

According to a specific embodiment of the cryoextraction device of the present invention, the sample tank and the condensation tank are switched between a sublimation extraction environment and a collection environment. In the sublimation extraction environment, the temperature of the sample tank and the condensation tank is below -30°C and the pressure is 0 mT to 15 mT; in the collection environment, the temperature of the sample tank and the condensation tank is 15°C to 45°C and the pressure is one atmosphere.

According to a specific embodiment of the cryoextraction device of the present invention, the condensation unit has a condensation tube disposed in the condensation tank and used to condense the extraction gas, and a condenser used to control the temperature of the condensation tube.

According to a specific embodiment of the cryoextraction device of the present invention, the condenser tube contains a refrigerant, and the temperature of the refrigerant in the sublimation extraction environment is -40°C.

According to a specific example of the frozen extraction device of the present invention, the water content of the water-containing sample is more than 40%.

In one embodiment of the cryoextraction device of the present invention, the aqueous sample is a plant.

According to a specific embodiment of the novel cryoextraction device, the plant is selected from the group consisting of: tea leaves, flowers, grass, fruits and vegetables, barks, roots, and combinations thereof.

According to a specific embodiment of the novel cryoextraction device, a feed pump is also included which is arranged in the communication tube.

The efficacy of the present invention is that the present invention allows the water-containing sample to be extracted under freezing and vacuum conditions, thereby avoiding the problems of flavor component reduction and odor generation during the extraction process, and obtaining an extract with a strong flavor.

Referring to Figure 1, a preferred embodiment of the new frozen extraction device can be used to extract a water-containing sample (not shown), and includes a vacuum system 1, a condensation system 2, a connecting tube 3, a temperature control 4, and One feed pump 5. Preferably, the water-containing sample is a plant with a water content of more than 40%. The above-mentioned "plants with a moisture content of more than 40%" include but are not limited to: plants with a minimum moisture content of 40%, or treated plants with a minimum moisture content of 40%. The aforementioned treated plants generally refer to any processed plants, and treated plants with a minimum moisture content of 40% can, for example, immerse dry plants in water, and allow the plants to continue to absorb water until the moisture content reaches above 40%. The plant can be fresh or processed (such as killing cyanine, removing impurities, drying, etc.). Preferably, the plant is selected from the group consisting of: tea, flowers, grass, fruits and vegetables, Bark, roots, other crops, and combinations thereof. More preferably, the plant is selected from the group consisting of: tea leaves, flowers, grasses, fruits and vegetables, and combinations thereof.

The vacuum system 1 includes a sample tank 11 that can hold 60 to 100 L of the water-containing sample, and a vacuum pump 12 that is arranged outside the sample tank 11 and can evacuate the sample tank 11 . The sample tank 11 has a sample inlet 111 disposed above the sample tank 11 and used to place the aqueous sample into the sample tank 11 , and a sample inlet 111 arranged above the sample tank 11 and used to control the inside of the sample tank 11 pressure of the first pressure relief valve 112.

The condensation system 2 includes a condensation tank 21 connected to the sample tank 11, and a condensation unit 22 disposed in the condensation tank 21. In particular, the vacuum pump 12 can also evacuate the condensation tank 21. The condensation tank 21 has a discharge port 211 disposed below the condensation tank 21, and a second pressure relief valve 212 disposed above the condensation tank 21 and used to control the pressure in the condensation tank 21. The condensation unit 22 has a condensation pipe 221 disposed in the condensation tank 21, and a condenser 222 used to control the temperature of the condensation pipe 221. Preferably, the condensation pipe 221 contains a refrigerant, and the condenser 222 controls the temperature of the condensation pipe 221 by adjusting the temperature of the refrigerant.

The connecting pipe 3 is disposed between the sample tank 11 and the condensation tank 21 and is used to connect the sample tank 11 and the condensation tank 21 .

The temperature control unit 4 is connected to the sample tank 11 and the condensation tank 21 and can be used to control the temperature in the sample tank 11 and the condensation tank 21 .

The feeding pump 5 is disposed in the communication tube 3 and can control the gas flow direction in the sample tank 11 and the condensation tank 21 .

The sample tank 11 and the condensation tank 21 can switch between a sublimation extraction environment and a collection environment. In the sublimation extraction environment, the temperatures of the sample tank 11 and the condensation tank 21 drop to below -30°C (preferably -30°C to -40°C), causing the aqueous sample in the sample tank 11 to solidify and transform. is a frozen sample; then the frozen sample is subjected to sublimation extraction at a pressure of 0 mT to 15 mT to obtain an extraction gas. During the above-mentioned sublimation extraction process, the ice in the frozen sample will sublime, taking away the aroma substances (such as fat-soluble essential oils) or other water-soluble substances in the sample to achieve the purpose of extraction. Then, the condenser 222 is used to control the refrigerant temperature to -40°C, so that the extraction gas is fed into the condensation tank 21 through the feed pump 5, and then by passing through the condensation tube 221, the extraction gas is condensed and transformed into 1. Extract the ice body. Finally, the second pressure relief valve 212 is used to control the pressure of the condensation tank to one atmosphere, and the temperature control 4 is used to increase the temperature of the condensation tank 21 to 15°C to 45°C, so that the condensation tank 21 is in the collection state. environment; at this time, the extraction ice body will melt and turn into an extraction liquid. The extraction liquid can flow out from the outlet 211 into a beaker 6 .

In summary, this new type of frozen extraction device allows the water-containing sample to be extracted under freezing and vacuum conditions to avoid problems such as the reduction of aroma components and the generation of odors during the extraction process, and to obtain products with a strong aroma. extract, so it can indeed achieve the purpose of the present invention.

However, the above are only examples of the present invention, and should not be used to limit the scope of the present invention. All simple equivalent changes and modifications made based on the patent scope of the present invention and the content of the patent specification are still within the scope of the present invention. Within the scope covered by this new patent.

1: Vacuum system 11: Sample tank 111: Sample inlet 112: First pressure relief valve 12: Vacuum pump 2: Condensation system 21: Condensation tank 211: Discharge port 212: Second pressure relief valve 22: Condensation unit 221: Condenser tube 222: Condenser 3: Connecting tube 4: Temperature control unit 5: Feed pump 6: Flask

Other features and functions of the present invention will be clearly presented in the implementation method with reference to the drawings, wherein: Figure 1 is a schematic diagram illustrating a preferred embodiment of the present invention's cryoextraction device.

1: Vacuum system

11:Sample tank

111: Sample inlet

112: First pressure relief valve

12: Vacuum pump

2: Condensation system

21: Condensate tank

211: Discharge port

212: Second pressure relief valve

22: Condensation unit

221: Condenser

222: Condenser

3: Connecting pipe

4: Temperature control

5: Feed Pump

6: Burning cup

Claims (8)

A frozen extraction device used to extract a water-containing sample and includes: A vacuum system includes a sample tank for placing the water-containing sample, and a vacuum pump connected to the sample tank, wherein the sample tank has a sample inlet and a pump for controlling the pressure in the sample tank. first pressure relief valve; A condensation system, including a condensation tank and a condensation unit located in the condensation tank, wherein the condensation tank has a discharge port and a second pressure relief valve for controlling the pressure in the condensation tank; A connecting tube connecting the sample tank and the condensation tank; and a temperature control connected to the sample tank and the condensation tank; Wherein, the aqueous sample is converted into a frozen sample through the temperature control. The frozen sample is sublimated and extracted by the vacuum system to obtain an extraction gas. The extraction gas enters the condensation system and is transformed into an extraction ice body through the condensation unit. The frozen extraction device of claim 1, wherein the sample tank and the condensation tank are switched between a sublimation extraction environment and a collection environment. In the sublimation extraction environment, the temperatures of the sample tank and the condensation tank are is below -30°C, and the pressure is 0 mT to 15 mT; in the collection environment, the temperature of the sample tank and the condensation tank is 15°C to 45°C, and the pressure is one atmosphere. A cryoextraction device as described in claim 1, wherein the condensation unit has a condenser tube disposed in the condensation tank and used to condense the extraction gas, and a condenser for controlling the temperature of the condenser tube. As described in claim 3, the condenser contains a refrigerant, and the temperature of the refrigerant in the sublimation extraction environment is -40°C. A cryoextraction device as described in any one of claims 1 to 4, wherein the water content of the water sample is greater than 40%. A cryoextraction device as described in claim 5, wherein the aqueous sample is a plant. The cryoextraction device as described in claim 6, wherein the plant is selected from the group consisting of: tea leaves, flowers, grass, fruits and vegetables, tree barks, tree roots, and combinations thereof. The frozen extraction device as claimed in claim 1, further includes a feed pump disposed in the communication pipe.

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