Preparation method of high-quality capsicum orange pigment

Abstract

The invention discloses a preparation method of a high-quality capsicum orange pigment. The preparation method comprises the following steps: drying and crushing pigment peppers, and then carrying out carbon dioxide supercritical extraction to obtain a gas phase and a liquid phase; introducing the gas phase into a separation kettle, and separating to obtain a liquid-phase substance containing capsicum orange pigment; and discharging the pressure in the extraction kettle to obtain a liquid phase as a capsanthin product. The yield of the obtained capsicum orange is 3.22%, the color value yield is 97.01%, and lambda is 0.8312; the content of carotenoid is 0.11%; the total organic content is less than 50ppm; the content of (zeaxanthin, beta-cryptoxanthin and beta carotene) is 90.62%; and the capsaicin content is 0.0009%.

Description

Technical Field

[0001] The present application relates to the technical field of extraction of capsicum orange pigment, and in particular to a method for preparing high-quality capsicum orange pigment. Background Art

[0002] Capsanthin and capsanthin orange pigment are mainly extracted from the dried peel of pepper, a plant of the Solanaceae family. Extraction process: Generally, capsanthin oleoresin is extracted from chili powder, and then the spicy substance capsaicin is removed, and then the capsanthin is obtained through refining.

[0003] Capsanthin and capsanthin orange are widely used as natural colorants in the food industry, cosmetics industry, beverage industry, pharmaceutical industry, and feed industry. In the food industry, they are used as colorants in sauces, ice cream, popsicles, biscuits, cooked meat and other products; in the cosmetics industry, they are used as colorants.

[0004] Existing extraction methods for capsanthin, such as CN201110167777.3, disclose a liquid phase supercritical capsanthin separation method, which enhances the mass transfer effect by countercurrent contact between the extractant and the raw material, reduces the capsanthin content of the pigment, reduces the solvent residue to less than 10 ppm, and increases the color value of the obtained capsanthin to 320.

[0005] The method comprises the following steps: using liquid capsicum resin as raw material, the capsicum resin flows down from the top of the extraction and rectification column through the material inlet and the liquid distributor, supercritical CO2 enters from the CO2 gas inlet at the bottom of the extraction and rectification column, and countercurrent extraction is performed; the extract is discharged from the extract outlet at the top of the extraction and rectification column, and enters the separator I and the separator II in sequence to remove the organic solvent and capsaicin; the raffinate pure capsicum red pigment product is discharged and collected from the raffinate material outlet at the bottom of the extraction and rectification column. The present invention allows the raw material to contact with the extractant in countercurrent, enhances the mass transfer effect, and can achieve continuous production, thereby improving production efficiency; using the liquid capsicum resin with low color value obtained by the solvent method as raw material, a capsicum red pigment product with a color value increased from 80 of the raw material to more than 320 can be obtained. However, this method cannot separate the capsicum orange pigment commonly contained in the capsicum red pigment, nor can it be extracted separately to obtain capsicum orange. Therefore, the hue value of the obtained capsicum red pigment is not disclosed, and the hue of the capsicum red obtained by the method cannot be clarified. However, according to common knowledge in the art, the capsicum red hue containing capsicum orange has a partial yellow hue, resulting in a low hue.

[0006] The prior art lacks a separate extraction method for capsicum orange.

[0007] The information disclosed in the background technology section is only intended to enhance the understanding of the overall background of the invention and should not be regarded as an admission or any form of suggestion that the information constitutes the prior art already known to a person skilled in the art. Summary of the invention

[0008] In response to the above technical problems, the present application provides a method for preparing high-quality capsanthin, which can simultaneously separate capsanthin red and capsanthin orange when the pepper raw material is fed and discharged, breaking the technical limitations of conventional capsaicin extraction and refining, and has broad application prospects.

[0009] The present application provides a method for preparing high-quality capsicum orange pigment, comprising the following steps:

[0010] After the pigment pepper is dried and crushed, a gas phase and a liquid phase are obtained by supercritical extraction with carbon dioxide;

[0011] The gas phase is passed into a separation kettle to separate and obtain a liquid phase containing pepper orange pigment;

[0012] The liquid phase obtained after the pressure in the extraction kettle is released is used as the capsanthin product;

[0013] The liquid phase containing the capsicum orange pigment is passed into a distillation tower for separation and purification to obtain the capsicum orange pigment;

[0014] Four-stage heaters are respectively used in the distillation tower: the temperature of the first-stage heater is 55-60°C; the temperature of the second-stage heater is 40-45°C; the temperature of the third-stage heater is 30-35°C; the temperature of the fourth-stage heater is 10-15°C; the capsicum orange is collected at the bottom of the first heater;

[0015] The extraction kettle pressure is: 28-30MPa, the temperature is 40℃-70℃, and the time is 2-6 hours;

[0016] The pressure of the separation kettle is 5-8MPa and the temperature is 35-60℃.

[0017] After a batch of pigmented peppers are treated by this method, pepper red and pepper orange products can be obtained at the same time. Since the pepper orange pigment in the pepper red is removed, the hue of the obtained pepper red can reach 0.9901.

[0018] Preferably, the distillation tower pressure is 4-6 MPa.

[0019] Preferably, the separated liquid phase containing capsicum orange pigment is continuously sprayed and fed in the distillation tower through a position between the second heater and the third heater disposed in the middle of the distillation tower, which is beneficial to improve the effective separation of impurities contained in capsicum orange.

[0020] Preferably, the gaseous material discharged from the separation kettle is passed into a solvent storage tank, which is pressurized and liquefied to obtain a solvent; the solvent storage tank is connected to the extraction kettle pipeline, thereby realizing the recycling of the solvent used for extraction, avoiding waste of materials and solvents, and improving utilization efficiency.

[0021] Preferably, the color value E of the pigmented pepper used is 10.34; the hue λ is 0.9802; and the HI is 55.33%.

[0022] Preferably, the pressure of the extraction kettle is 29 MPa, the temperature is 45° C., and the time is 2 to 6 hours.

[0023] Preferably, the separation kettle comprises: a first separation kettle and a second separation kettle connected in parallel with the filter; the liquid outlets of the first separation kettle and the second separation kettle collect the heavy phase; the pressure and temperature of the first separation kettle are lower than those of the second separation kettle.

[0024] Preferably, the pressure of the first separation kettle is: 7MPa, and the temperature is: 40°C;

[0025] The pressure of the second separation kettle is 5 MPa and the temperature is 35°C.

[0026] Preferably, the discharge condition in the separation kettle is to discharge the light phase liquid when the liquid volume in the separation kettle reaches 100 kg.

[0027] Preferably, the steps include:

[0028] After the first extraction kettle, the second extraction kettle and the third extraction kettle are preheated to 45°C, the materials to be extracted are added, and the pressure pump is turned on to pressurize the first extraction kettle, the second extraction kettle and the third extraction kettle to 29mPa;

[0029] The exhaust ports of the first extraction kettle, the second extraction kettle, and the third extraction kettle are respectively connected to the air inlet pipelines of the first filter and the second filter; the filtered gas is passed into the first separation kettle and the second separation kettle, and the heavy phase is obtained after separation, thereby achieving gas-liquid separation;

[0030] During the treatment, the first separation kettle and the second separation kettle are preheated to 40°C and 35°C respectively, and then the valve is opened to discharge the heavy and light phases of the extraction kettle to the first separation kettle and the second separation kettle;

[0031] After the exhaust is completed, the exhaust pipe valves of each extraction kettle are closed, and the pressures in the first separation kettle and the second separation kettle are adjusted respectively. The capsanthin in the gas phase substance in the separation kettle is precipitated from the gas phase and gathered in each separation kettle.

[0032] Specifically, the following steps are included:

[0033] Step a, drying and crushing the pepper to use as an extraction raw material for subsequent operations;

[0034] Step b, in the separation process, the extraction raw material is transported to a carbon dioxide supercritical extraction kettle by a pump for extraction, and after extraction, it enters a separation kettle for separation to obtain a light phase material and a heavy phase material, wherein the light phase in the supercritical extraction kettle is volatile impurities and capsicum orange pigment, and the heavy phase is capsicum red pigment; the pressure of the extraction kettle is 28-30MPa, the temperature is 40°C-70°C, and the time is 2-6 hours; the pressure of the separation kettle is 5-8MPa, and the temperature is 35-60°C.

[0035] Step c, using the pressure of the separation kettle, continue to inject the light phase material and the heavy phase material into the distillation tower at the same time, at different pressures and at different temperatures of the four-stage heater, continuously feed, and the material with high boiling point and high specific gravity flows downward and is collected at the lower part of the first heater;

[0036] The light phase material has a relatively low boiling point and a light specific gravity and flows upward with the carbon dioxide liquid, passes through the third heater and the fourth heater, is collected at the top of the fourth heater, and is separated and purified by a distillation column to finally obtain capsanthin and capsanthin orange with high purity, excellent quality and rich nutritional value.

[0037] The pressure of the distillation tower is 4-6 MPa. The temperature of the first-stage heater heated by the four-stage heater is 55-60°C; the temperature of the second-stage heater is 40-45°C; the temperature of the third-stage heater is 30-35°C; the temperature of the fourth-stage heater is 10-15°C; the capsicum orange is collected at the bottom of the first heater, and the different boiling points and specific gravities of different substances in the fluid are used for separation and purification; the heavy phase received at the bottom of the distillation tower is high-quality capsicum red, and the one collected in the middle of the distillation tower is high-quality capsicum orange pigment.

[0038] In step d, the capsicum orange pigment is purified by a distillation tower to obtain capsicum red and capsicum orange at the same time, and the color value yield of the obtained capsicum red is 99.40%, the color value yield of the capsicum orange is 97.01%, and the capsicum orange has the characteristics of excellent smell, low residue and the like.

[0039] The beneficial effects of this application include:

[0040] 1) The preparation method of high-quality capsicum orange provided in the present application adopts carbon dioxide supercritical extraction to achieve simultaneous separation of capsicum red pigment and capsicum orange pigment, and the separated liquid phase containing capsicum orange pigment is continuously sprayed and fed in a distillation tower through a position between a second heater and a third heater in the middle, which is beneficial to improve the effective separation of impurities contained in capsicum orange, and the material with a relatively high boiling point and a large specific gravity flows downward and is collected after passing through the second heater and the lower part of the first heater; the material with a relatively low boiling point and a light specific gravity component flows upward with the carbon dioxide liquid, passes through the third heater and the fourth heater, and the impurities contained are collected at the top of the fourth heater, and are separated and purified by a distillation tower to finally obtain capsicum red pigment and capsicum orange pigment with high purity, excellent quality and rich nutritional value.

[0041] 2) The preparation method of high-quality capsicum orange pigment provided in the present application can simultaneously separate pure capsicum red and capsicum orange pigment. Due to the removal of capsicum orange from capsicum red, the hue of the obtained capsicum red is 0.9901 and the odor is excellent. The solvent residue is only 10-50ppm. At the same time, the obtained capsicum orange meets the national standard UV test result requirements. The obtained capsicum red yield is relatively high at 4.55%, HI is 57.49%; E is 220.56; color value yield is 99.40%; acetone insoluble matter is 0.04%; capsaicin content is 0.0011%.

[0042] 3) The preparation method of high-quality capsicum orange pigment provided in the present application has a capsicum orange yield of 3.22%, a color value yield of 97.01%, a lambda of 0.8312, a carotenoid content of 0.11%, a total organic content of <50ppm, a (zeaxanthin + β-cryptoxanthin + β-carotene) content of 90.62%, and a capsaicin content of 0.0009%. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] Figure 1 A schematic diagram of the process for preparing high-quality capsicum orange pigment in Example 1 provided in this application;

[0044] Figure 2 This is a UV test result diagram of high-quality capsicum orange pigment in Example 1 provided in this application;

[0045] Figure 3 This is a schematic front view of the production equipment used in Example 1 provided in this application.

[0046] Legend:

[0047] The first extraction kettle 11, the second extraction kettle 12, the third extraction kettle 13, the first filter 21, the second filter 22, the first separation kettle 31, the second separation kettle 32, the n-ethane storage tank 23, the CO2 intermediate storage tank 231, the CO2 storage tank 232, the condenser 234, the pressure pump 223, and the auxiliary pump 221. DETAILED DESCRIPTION

[0048] The present invention is further described in detail below in conjunction with the accompanying drawings and embodiments, but the present invention is not limited in any way. Any changes or improvements made based on the teachings of the present invention fall within the protection scope of the present invention.

[0049] Example

[0050] Unless otherwise specified, the materials and instruments used in the following examples were obtained from commercial channels; the detection methods used were all existing methods unless otherwise specified.

[0051] Example 1

[0052] See also Figure 1 1. Crush the raw materials: Crush 250 kg of dried pigment pepper and sieve through a 60-mesh sieve to obtain the sieved material; collect 10 g of the raw materials and test the various performance parameters of the raw materials according to the method in GB 1886.34-2015 as shown in the following table:

[0053] raw material Color Price E Hue λ HI(%) Pigmented pepper 10.34 0.9802 55.33

[0054] Note: λ is the ratio of absorbance at 470nm and 455nm, λ=E 1 1cm ％ 470 / E 1 1cm ％ 455; HI (%) is the red ratio, HI (%) = (E 1 1cm ％ 495 / E 1 1cm ％ 422*72.5-24.5) / 100, where E 1 1cm ％ 495 is the absorbance value at 495 nm; E 1 1cm ％ 422 is the absorbance value at 422 nm; the meanings of the symbols in this application are the same as those herein, and the calculation formula is the same.

[0055] 2. Feeding: Open the upper cover of the carbon dioxide supercritical extraction kettle, put 250 kg of crushed dry chili into the extraction kettle barrel, add acetone as a solvent, close the upper cover of the extraction kettle, set the parameters of each equipment according to the process shown in the table below, and then perform carbon dioxide supercritical extraction;

[0056] The equipment used is Figure 3 As shown, it includes: a first extraction kettle 11, a second extraction kettle 12, a third extraction kettle 13, a first filter 21, a second filter 22, a first separation kettle 31, a second separation kettle 32, an n-ethane storage tank 23, a CO2 intermediate storage tank 231, a CO2 storage tank 232, a condenser 234, a pressure pump 223, and an auxiliary pump 221;

[0057] The liquid inlets of the first extraction kettle 11, the second extraction kettle 12, and the third extraction kettle 13 are respectively connected in parallel with the n-ethane storage tank 23, and the exhaust ports of the first extraction kettle 11, the second extraction kettle 12, and the third extraction kettle 13 are respectively connected in parallel with the air inlets of the first filter 21 and the second filter 22; the first extraction kettle 11, the second extraction kettle 12, and the third extraction kettle 13 are filled with materials to be extracted; the air outlets of the first filter 21 and the second filter 22 are respectively connected in parallel with the air inlets of the first separation kettle 31 and the second separation kettle 32; the outlet ports of the first separation kettle 31 and the second separation kettle 32 are respectively connected in parallel. The air inlets are respectively connected in parallel with the air inlets of the condenser 234; the air outlet of the condenser 234 is connected with the air inlet pipeline of the CO2 intermediate storage tank 231; the air outlet of the CO2 storage tank 232 and another air inlet pipeline of the CO2 intermediate storage tank 231 are connected, and a pressure pump 223 is arranged on the connecting pipeline; an auxiliary pump 221 is arranged on the pipeline for the n-ethane storage tank 23 to supply liquid to each extraction kettle; the air outlet of the CO2 intermediate storage tank 231 is connected in parallel with the air inlets of the first extraction kettle 11, the second extraction kettle 12, and the third extraction kettle 13, and a pressure pump 223 is arranged on the air supply pipeline.

[0058] After the first extraction kettle 11, the second extraction kettle 12, and the third extraction kettle 13 are preheated to 45°C, the materials to be extracted are added, and the pressure pump 223 is turned on to pressurize the first extraction kettle 11, the second extraction kettle 12, and the third extraction kettle 13 to 29mPa; the exhaust ports of the first extraction kettle 11, the second extraction kettle 12, and the third extraction kettle 13 are connected to the air inlet pipelines of the first filter 21 and the second filter 22 respectively; the filtered gas is passed into the first separation kettle 31 and the second separation kettle 32, and then After separation, the heavy phase is obtained to achieve gas-liquid separation; during processing, the first separation kettle 31 and the second separation kettle 32 are preheated to 40°C and 35°C respectively, and the valves are opened to discharge the heavy and light phases of the extraction kettle to the first separation kettle 31 and the second separation kettle 32; after the exhaust is completed, the exhaust pipe valves of each extraction kettle are closed, and the pressures in the first separation kettle 31 and the second separation kettle 32 are adjusted to 8MPa and 5MPa respectively according to the table below. After the capsanthin in the gas phase substance in the separation kettle is precipitated from the gas phase, it is gathered in the separation kettle. Multiple hot water tanks and cold water tanks are connected to the circulating temperature adjustment interlayer pipelines of the extraction kettle to achieve temperature adjustment of the extraction kettle.

[0059] surface

[0060]

[0061] 3. Extraction: When the supercritical pressure of carbon dioxide reaches the requirements in the above table, extraction is carried out with carbon dioxide entrained with part of sunflower oil as the extraction solvent. The extraction time is 4 hours. During the extraction process, the pressure difference between the separation kettle and the extraction kettle is continuously utilized to precipitate the liquid phase containing capsicum orange pigment in each separation kettle. The liquid phase retained in the extraction kettle is the capsicum red product. The obtained liquid phase containing capsicum orange pigment is subsequently injected into the distillation tower and separated and purified by the distillation column.

[0062] 4. Purification of chili orange by distillation column: During the distillation process, the pressure of the distillation column is maintained at 4-6MPa. The distillation column is continuously fed at different temperatures of the four-stage heater (first stage: 55-60°C; second stage 40-45°C; third stage 30-35°C; fourth stage 10-15°C). Due to the low boiling point under high pressure, the high specific gravity flows downward and the chili orange is collected at the bottom of the first heater; the relatively low boiling point and light specific gravity flow upward with the carbon dioxide liquid, pass through the third and fourth heaters, and the oil impurities are collected at the top of the fourth heater. The refining and purification of chili orange is achieved.

[0063] Finally, the net weight of the separated capsicum red was 11.37 kg (yield was 4.55%); the separated capsicum orange was 8.05 kg (yield was 3.22%); the separated oil impurities (yellowish) had a net weight of 8.51 kg.

[0064] Yield calculation formula = mass of each product / pigmented pepper*100%.

[0065] Example 2 Product Index Detection

[0066] 1. The test results of the obtained capsicum red are as follows:

[0067]

[0068] As can be seen from the table above, the yield of capsanthin is as high as 4.55%, λ is 0.9901, HI is 57.49%, E is 220.56, color value yield is 99.40%, acetone insoluble matter is 0.04%, and capsaicin content is 0.0011%. The color value yield of capsanthin = the color value of the raw material before extraction / the color value of the capsanthin obtained after extraction, which is as high as more than 97%, and the acetone insoluble matter is less than 0.1%, and the solvent residue is less, and the quality of capsanthin is better. Solvent residue is 10-50ppm

[0069] 2. The test results of pepper orange are as follows:

[0070] surface

[0071]

[0072] As can be seen from the above table, the yield of the obtained capsicum orange is 3.22%, the color value yield is 97.01%, and λ is 0.8312; the carotenoid content is 0.11%; the total organic content is <50ppm; the content of (zeaxanthin + β-cryptoxanthin + β-carotene) is 90.62%; and the capsaicin content is 0.0009%.

[0073] As can be seen from the table above, carotenoids are converted through the absorption value of capsanthin / capsanthin at 462nm, which indirectly reflects the proportion of capsanthin in the total output. Therefore, if there is less capsanthin in the product, the proportion of carotenoids is smaller. The higher the proportion of zeaxanthin, β-cryptoxanthin, and β-carotene, the more yellow pigments there are. The higher the proportion of zeaxanthin, β-cryptoxanthin, and β-carotene, the yellower the capsanthin orange is, and the better the quality is in actual customer demand.

[0074] Chili orange is yellowish orange, if not separated it will result in a low value of 0.9901

[0075] 3. The obtained pepper orange was tested by UV method according to the method in GB 1886.105-2016. The results are as follows Figure 2 shown.

[0076] As can be seen from the figure, the peak value of the obtained capsicum orange is between 447.0 and 468.5 nm, and this peak value range meets the national standard requirements, indicating that the obtained substance is capsicum orange.

[0077] Through the above innovative method, not only the red pepper product is extracted from the raw pepper material, with a color value extraction yield of up to 97%, but also the red pepper orange and red pepper are separated more thoroughly, and the quality of the red pepper orange is better after purification. The red pepper orange and red pepper products can be mixed into a variety of pepper products with a wider market selection.

[0078] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A method for preparing high-quality capsicum orange pigment, characterized in that: The following steps are involved: After the pigment pepper is dried and crushed, a gas phase and a liquid phase are obtained by supercritical extraction with carbon dioxide; The gas phase is passed into a separation kettle to separate and obtain a liquid phase containing pepper orange pigment; The liquid phase obtained after the pressure in the extraction kettle is released is used as the capsanthin product; The liquid phase containing the capsicum orange pigment is passed into a distillation tower for separation and purification to obtain the capsicum orange pigment; Four-stage heaters are respectively used in the distillation tower: the temperature of the first-stage heater is 55-60°C; the temperature of the second-stage heater is 40-45°C; the temperature of the third-stage heater is 30-35°C; the temperature of the fourth-stage heater is 10-15°C; the capsicum orange is collected at the bottom of the first heater; The extraction kettle pressure is: 28-30MPa, the temperature is 40℃-70℃, and the time is 2-6 hours; The pressure of the separation kettle is 5-8MPa and the temperature is 35-60℃.

2. The method for preparing high-quality capsicum orange pigment according to claim 1, characterized in that: The distillation tower pressure is: 4~6MPa.

3. The method for preparing high-quality capsicum orange pigment according to claim 1, characterized in that: The separated liquid phase containing pepper orange pigment is continuously sprayed and fed into the distillation tower through the position between the second heater and the third heater in the middle.

4. The method for preparing high-quality capsicum orange pigment according to claim 1, characterized in that: The separated liquid phase containing pepper orange pigment is continuously sprayed and fed into the distillation tower through a position between the second heater and the third heater arranged in the middle of the distillation tower.

5. The method for preparing high-quality capsicum orange pigment according to claim 1, characterized in that: The color value E of the pigmented pepper used is 10.34; the hue λ is 0.9802; and the HI is 55.33%.

6. The method for preparing high-quality capsicum orange pigment according to claim 1, characterized in that: The extraction kettle pressure is: 29MPa, the temperature is 45°C, and the time is 2 to 6 hours.

7. The method for preparing high-quality capsicum orange pigment according to claim 1, characterized in that: The separation kettle comprises: the separation kettle comprises: a first separation kettle (31) and a second separation kettle (32) connected in parallel with a filter; the liquid outlets of the first separation kettle (31) and the second separation kettle (32) collect the heavy phase; the pressure and temperature of the first separation kettle (31) are lower than those of the second separation kettle (32).

8. The method for preparing high-quality capsicum orange pigment according to claim 1, characterized in that: The pressure of the first separation kettle (31) is 7 MPa and the temperature is 40°C; the pressure of the second separation kettle (32) is 5 MPa and the temperature is 35°C.

9. The method for preparing high-quality capsicum orange pigment according to claim 1, characterized in that: The discharge condition in the separation kettle is to discharge the light phase liquid when the liquid volume in the separation kettle reaches 100 kg.

10. The method for preparing high-quality capsicum orange pigment according to claim 1, characterized in that: The following steps are involved: After the first extraction kettle (11), the second extraction kettle (12), and the third extraction kettle (13) are preheated to 45°C, the material to be extracted is added, and then the pressure pump (223) is turned on to pressurize the first extraction kettle (11), the second extraction kettle (12), and the third extraction kettle (13) to 29 mPa; The exhaust ports of the first extraction kettle (11), the second extraction kettle (12) and the third extraction kettle (13) are respectively connected to the air inlet pipelines of the first filter (21) and the second filter (22); the filtered gas is passed into the first separation kettle (31) and the second separation kettle (32), and a heavy phase is obtained after separation, thereby achieving gas-liquid separation; During the treatment, the first separation kettle (31) and the second separation kettle (32) are preheated to 40°C and 35°C respectively, and then the valves are opened to discharge the heavy phase and the light phase of the extraction kettle to the first separation kettle (31) and the second separation kettle (32); After the exhaust is completed, the exhaust pipe valves of each extraction kettle are closed, and the pressures in the first separation kettle (31) and the second separation kettle (32) are adjusted respectively. The capsanthin in the gas phase material in the separation kettle is precipitated from the gas phase and gathered in each separation kettle.

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