Method for producing camellia oil milk with high anthocyanin content

Abstract

The present application relates to camellia oil product processing technical field, especially to camellia oil milk production method with high anthocyanin content;Through first fresh tea oil seed is soaked in glucose water, and carries out illumination reaction, makes the procyanidin existing in tea oil seed decomposes into anthocyanin, and makes the hydrogen group or hydroxyl group on anthocyanin and glucose reaction, forms anthocyanin with more glucosyl, and after soaking, tea oil seed is extracted by alcohol, and anthocyanin in tea oil seed is fully extracted, then tea oil seed is taken out, dried, and pressed to obtain tea seed oil, then tea seed oil is mixed with extract, emulsifier, glucose water, and nano emulsification is carried out, and camellia oil milk is obtained;The camellia oil milk obtained has higher anthocyanin content, not only improves the bitter taste of procyanidin.

Description

[0001] This case is a divisional application of the patent application with application number 202311455289.1, application date 2023-11-03, entitled "Emulsification device and production method of camellia oil milk". Technical Field

[0002] This invention relates to the field of camellia oil product processing technology, and in particular to a method for producing camellia oil milk with high anthocyanin content. Background Technology

[0003] Camellia oil, also known as tea seed oil, tea tree oil, or tea oil, is obtained from the seeds of the Camellia oleifera tree (family Theaceae) and is one of the oldest woody edible oils in my country. Camellia oil refined from camellia seeds is light yellow in color, clear and transparent, and has a pleasant aroma, making it a high-quality edible oil.

[0004] However, because camellia oil is viscous, it not only has poor sensory effects, but also has a large particle size and poor dispersion performance in the medium, which is not conducive to human absorption and limits its application as a health food.

[0005] Chinese patent CN103283866B discloses a camellia oil microemulsion and its production method. By emulsifying camellia oil into an emulsion form, the poor dispersibility of camellia oil, which is not conducive to human absorption, is improved.

[0006] The production method of camellia oil microemulsion involved in the above patents involves directly using camellia oil as raw material, adding surfactants, water, and liquid fatty acids, and emulsifying them to form an emulsion.

[0007] Tea oil seeds contain a relatively high amount of proanthocyanidins, also known as sugar-free anthocyanins. Since proanthocyanidins have a bitter taste and poor mouthfeel, if proanthocyanidins are converted into anthocyanins with glycosidic bonds and combined with tea oil dairy products, the bitter taste caused by proanthocyanidins can be improved.

[0008] Because proanthocyanidins are hydrophilic, in traditionally pressed camellia oil, proanthocyanidins are lost with water during the drying process of the camellia seeds, resulting in a low proanthocyanidin content in pressed camellia oil. Therefore, the proanthocyanidin content in dairy products made from camellia oil is also low.

[0009] Therefore, there is an urgent need to provide a camellia oil milk emulsification device and production method. By improving the emulsification device, the emulsification efficiency can be increased, and by improving the process, a higher content of anthocyanins can be retained in the milk products. Summary of the Invention

[0010] The technical problem to be solved by this invention is: there is an urgent need to provide a camellia oil milk emulsification device and production method, which improves emulsification efficiency through improvements in the emulsification device and enables milk products to retain a high content of anthocyanins through process improvements.

[0011] To solve the above-mentioned technical problems, the technical solution adopted by the present invention is as follows:

[0012] An emulsifying device for camellia oil milk, comprising:

[0013] frame;

[0014] An emulsifying tank is connected to the frame. The emulsifying tank is a rotating body with its axis in the vertical direction. A discharge port is provided at the bottom of the emulsifying tank.

[0015] The inlet pipe is coaxially arranged with the emulsifying tank and passes through the emulsifying tank. The upper end of the inlet pipe extends to the outside of the emulsifying tank, and a first pulley is sleeved on the upper part of the inlet pipe. The circumferential surface of the portion of the inlet pipe inside the emulsifying tank is provided with multiple drainage holes. The inner wall of the inlet pipe is provided with guide vanes, which are arranged one-to-one with the drainage holes and are located above the drainage holes. The angle between the guide vanes and the horizontal direction is 40-60 degrees.

[0016] A connecting pipe, one end of which is connected to a water storage tank, and the other end of which is connected to the upper end of an inlet pipe via a rotary joint;

[0017] A liquid pump, connected to the connecting pipe, is used to pump liquid from the water storage tank to the inlet pipe;

[0018] A drive motor is connected to the frame, and the output shaft of the drive motor is sleeved with a second pulley. The first pulley and the second pulley are connected by a transmission belt.

[0019] A stirring rod is connected to the outer circumference of the liquid inlet pipe. Multiple sets of stirring rods are arranged vertically, and the liquid outlet is at the same height as one set of stirring rods.

[0020] The feed inlet is located on one side of the upper part of the emulsifying tank.

[0021] Another technical solution of the present invention is: a method for producing camellia oil milk, comprising the following steps:

[0022] S1: Wash fresh tea oil seeds, soak them in glucose water, and react them under 1000LX-2000LX light for 3-4 hours;

[0023] S2: Fresh tea oil seeds are removed from glucose water and soaked in 90% ethanol solution, and the mixture is stirred to react.

[0024] S3: Remove the tea oil seeds from the ethanol solution; concentrate the solution under reduced pressure until there is no alcohol odor, recover the ethanol, obtain the concentrate, centrifuge the concentrate, take the supernatant, elute the supernatant with a weakly polar CAD-40 macroporous adsorption resin at a flow rate of 0.5 BV / h, obtain the eluent, concentrate the eluent under reduced pressure until there is no alcohol, recover the ethanol, and obtain the concentrate.

[0025] S4: Spray dry the concentrate to obtain the extract;

[0026] S5: Dry and press fresh tea seeds to obtain tea seed oil. Mix the extract obtained in S4 with the tea seed oil evenly, and mix with glucose water and emulsifier in S2. Then, carry out the emulsification reaction in an emulsification device to obtain camellia oil milk.

[0027] Furthermore, in the above-mentioned method for producing camellia oil milk, in step S1, the mass ratio of fresh camellia oil seeds to glucose water is 1:(3-4), and the glucose concentration in the glucose water is 30-40%.

[0028] Furthermore, in the above-mentioned method for producing camellia oil milk, in step S3, the temperature for vacuum concentration of the solution is 40℃-45℃, and the vacuum degree is 0.09MPa-1MPa; the temperature for vacuum concentration of the eluent is 40℃-45℃, and the vacuum degree is 0.09MPa-1MPa.

[0029] Furthermore, in the above-mentioned method for producing camellia oil milk, in step S3, the step of eluting the supernatant with macroporous adsorption resin to obtain the eluent specifically involves: purifying the supernatant with a weakly polar CAD-40 macroporous adsorption resin at a flow rate of 0.5 BV / h-0.6 BV / h; first washing the resin column with 2 BV of purified water at a flow rate controlled at 1 BV / h; then eluting with 8 BV of 70% ethanol at a flow rate controlled at 1 BV / h; and collecting and obtaining the eluent.

[0030] Furthermore, in the above-mentioned method for producing camellia oil milk, the drying temperature of the camellia seeds is 60℃-65℃, and the drying time is 7h-8h.

[0031] Furthermore, in the above-mentioned method for producing camellia oil milk, the emulsifier is selected from soybean lecithin.

[0032] Furthermore, in the above-mentioned method for producing camellia oil milk, in step S5, the mass ratio of tea seed oil containing extract, glucose water, and emulsifier is (40-50):(20-30):(4-7).

[0033] Furthermore, in the above-mentioned method for producing camellia oil milk;

[0034] Specifically, S5 is:

[0035] The inlet pipe is rotated by a drive motor, which in turn drives the stirring rod to rotate.

[0036] During the rotation of the stirring rod, the glucose water in S2 is pumped into the inlet pipe through the connecting pipe, and then enters the emulsification tank through the drain hole in the inlet pipe;

[0037] Meanwhile, camellia seed oil, the extract obtained from S4, and emulsifier are added from the feed inlet of the emulsification tank, and the stirring rod continuously stirs the mixture, causing the materials to undergo an emulsification reaction in the emulsification tank to obtain camellia oil milk.

[0038] The beneficial effects of this invention are as follows:

[0039] In the emulsification device structure of this invention, water for emulsification enters the inlet pipe through a connecting pipe. Under the pressure of the liquid pump and the action of the guide vanes on the inner wall of the inlet pipe, a spiral water flow is formed in the inlet pipe, causing the water to be sprayed from the side drain hole into the emulsification tank. Under the rotation of the stirring rod, the sprayed water is quickly dispersed to form a water mist. Meanwhile, materials with poor flowability, such as tea seed oil, extract, and emulsifier, enter from the feed inlet and mix with the water mist in the tank, enabling a more efficient emulsification reaction.

[0040] This invention involves first soaking fresh camellia seeds in glucose water and then subjecting them to a light-induced reaction. This process decomposes the proanthocyanidins in the seeds into anthocyanins, and the hydrogen or hydroxyl groups on the anthocyanins react with glucose to form anthocyanins with more glucose groups. The soaked camellia seeds are then subjected to alcohol extraction to fully extract the anthocyanins. The seeds are then removed, dried, and pressed to obtain camellia seed oil. The camellia seed oil is then mixed with the extract, emulsifier, and glucose water, and nano-emulsified to obtain camellia oil milk. This invention, through pre-pressing treatment of the camellia seeds, converts the proanthocyanidins into anthocyanins, which dissolve in glucose water. In the subsequent emulsification process, the alcohol extract, glucose water, and camellia oil are mixed and emulsified to obtain camellia oil milk with a higher anthocyanin content. Furthermore, the glucose water and the anthocyanins with more glucose groups not only improve the bitter taste caused by proanthocyanidins. Attached Figure Description

[0041] Figure 1 This is a schematic diagram of the structure of an emulsifying device for camellia oil milk according to a specific embodiment of the present invention;

[0042] Figure 2 This is a partial cross-sectional view of the inlet pipe of an emulsifying device for camellia oil milk according to a specific embodiment of the present invention;

[0043] Label Explanation:

[0044] 1. Rack;

[0045] 2. Emulsifying tank; 21. Discharge port;

[0046] 3. Liquid inlet pipe; 31. First pulley; 32. Drain hole; 33. Guide vane; 34. Stirring rod;

[0047] 4. Connecting pipe; 41. Rotary joint;

[0048] 5. Liquid pump;

[0049] 61. Drive motor; 62. Second pulley;

[0050] 7. Feed inlet;

[0051] 8. Water storage tank. Detailed Implementation

[0052] To explain in detail the technical content, objectives, and effects of the present invention, the following description is provided in conjunction with the embodiments and accompanying drawings.

[0053] Please refer to Figure 1 as well as Figure 2 The present invention relates to an emulsification device for camellia oil milk.

[0054] include:

[0055] Rack 1;

[0056] Emulsifying tank 2 is connected to the frame 1. The emulsifying tank 2 is a rotating body. The axis of the emulsifying tank 2 is vertical. The lower part of the emulsifying tank 2 is provided with a discharge port 21.

[0057] An inlet pipe 3 is coaxially inserted through the emulsifying tank 2, with its upper end extending to the outside of the emulsifying tank 2. A first pulley 31 is sleeved on the upper part of the inlet pipe 3. The circumferential surface of the portion of the inlet pipe 3 located inside the emulsifying tank 2 is provided with multiple drain holes 32. The inner wall of the inlet pipe 3 is provided with guide vanes 33, which are arranged one-to-one with the drain holes 32. The guide vanes 33 are located above the drain holes 32, and the angle between the guide vanes 33 and the horizontal direction is 40-60 degrees.

[0058] Connecting pipe 4, one end of which is connected to water storage tank 8, and the other end is connected to the upper end of liquid inlet pipe 3 through rotary joint 41;

[0059] A drive motor 61 is connected to the frame 1. The output shaft of the drive motor 61 is sleeved with a second pulley 62. The first pulley 31 and the second pulley 62 are connected by a transmission belt.

[0060] A stirring rod 34 is connected to the outer circumference of the liquid inlet pipe 3. Multiple sets of stirring rods 34 are arranged vertically. The liquid outlet 32 ​​is at the same height as one set of stirring rods 34.

[0061] The feed inlet 7 is located on one side of the upper part of the emulsifying tank 2.

[0062] The present invention relates to a method for producing camellia oil milk, comprising the following steps:

[0063] S1: Wash fresh tea oil seeds, soak them in glucose water, and react them under 1000LX-2000LX light for 3-4 hours;

[0064] S2: Fresh tea oil seeds are removed from glucose water and soaked in 90% ethanol solution, and the mixture is stirred to react.

[0065] S3: Remove the tea oil seeds from the ethanol solution; concentrate the solution under reduced pressure until there is no alcohol odor, recover the ethanol, obtain the concentrate, centrifuge the concentrate, take the supernatant, elute the supernatant with a weakly polar CAD-40 macroporous adsorption resin at a flow rate of 0.5 BV / h, obtain the eluent, concentrate the eluent under reduced pressure until there is no alcohol, recover the ethanol, and obtain the concentrate.

[0066] S4: Spray dry the concentrate to obtain the extract;

[0067] S5: Dry and press fresh tea seeds to obtain tea seed oil. Mix the extract obtained in S4 with the tea seed oil evenly, and mix with glucose water and emulsifier in S2. Then, emulsify the mixture in a nano-emulsifier to obtain camellia oil milk.

[0068] This invention involves first soaking fresh camellia seeds in glucose water and then subjecting them to a light-induced reaction. This process decomposes the proanthocyanidins in the seeds into anthocyanins, and the hydrogen or hydroxyl groups on the anthocyanins react with glucose to form anthocyanins with more glucose groups. The soaked camellia seeds are then subjected to alcohol extraction to fully extract the anthocyanins. The seeds are then removed, dried, and pressed to obtain camellia seed oil. The camellia seed oil is then mixed with the extract, emulsifier, and glucose water, and nano-emulsified to obtain camellia oil milk. This invention, through pre-pressing treatment of camellia seeds, converts the proanthocyanidins in the seeds into anthocyanins, which dissolve in glucose water. In the subsequent emulsification process, by mixing and emulsifying the alcohol extract, glucose water, and camellia oil, the resulting camellia oil milk has a higher anthocyanin content. Furthermore, the glucose water and the anthocyanins with more glucose groups not only improve the bitter taste caused by proanthocyanidins.

[0069] As an optional implementation, in step S1, the mass ratio of fresh tea oil seeds to glucose water is 1:(3-4), and the glucose concentration in the glucose water is 30%-40%.

[0070] As an optional implementation, in step S3, the temperature for vacuum concentration of the solution is 40℃-45℃ and the vacuum degree is 0.09MPa-1MPa, and the temperature for vacuum concentration of the eluent is 40℃-45℃ and the vacuum degree is 0.09MPa-1MPa.

[0071] As an optional implementation, in step S3, the step of eluting the supernatant with macroporous adsorption resin to obtain the eluent specifically involves: purifying the supernatant with weakly polar CAD-40 macroporous adsorption resin at a flow rate of 0.5 BV / h-0.6 BV / h; first washing the resin column with 2 BV of purified water at a flow rate controlled at 1 BV / h; then eluting with 8 BV of 70% ethanol at a flow rate controlled at 1 BV / h; and collecting and obtaining the eluent.

[0072] As an optional implementation, the tea oil seeds are dried at a temperature of 60℃-65℃ for 7-8 hours.

[0073] As an optional implementation, the emulsifier is selected from soybean lecithin.

[0074] As an optional implementation, in step S5, the mass ratio of the tea seed oil containing the extract, glucose water, and emulsifier is (40-50):(20-30):(4-7).

[0075] As an optional implementation method, S5 specifically includes:

[0076] The inlet pipe 3 is rotated by the drive motor 61, which in turn drives the stirring rod 34 to rotate.

[0077] During the rotation of the stirring rod 34, the glucose water in S2 is pumped into the inlet pipe 3 through the connecting pipe 4, and then enters the emulsification tank 2 through the drain hole 32 in the inlet pipe 3;

[0078] Meanwhile, tea seed oil, the extract obtained from S4, and the emulsifier are fed into the inlet 7 of the emulsification tank 2, and the stirring rod 34 continuously stirs the mixture, so that the materials undergo an emulsification reaction in the emulsification tank 2 to obtain camellia oil milk.

[0079] In the above embodiments, glucose water enters the inlet pipe 3 through the connecting pipe 4. Under the pressure of the liquid pump 5 and the action of the guide vanes 33 on the inner wall of the inlet pipe 3, a spiral water flow is formed in the inlet pipe 3, causing the glucose water to be sprayed from the side drain hole 32 onto the emulsification tank 2. Under the rotation of the stirring rod 34, the sprayed water is quickly dispersed to form a water mist. Meanwhile, materials with poor flowability, such as tea seed oil, extract, and emulsifier, enter from the feed inlet 7 and mix with the water mist in the tank, enabling a more efficient emulsification reaction.

[0080] Example 1

[0081] A method for producing camellia oil milk includes the following steps:

[0082] S1: Wash fresh tea oil seeds, soak them in glucose water, and react them under 1500LX light for 3.5h; the mass ratio of fresh tea oil seeds to glucose water is 1:3.5, and the glucose concentration in the glucose water is 35%;

[0083] S2: Fresh tea oil seeds are removed from glucose water and soaked in 90% ethanol solution, and the mixture is stirred to react.

[0084] S3: Remove the tea oil seeds from the ethanol solution; concentrate the solution under reduced pressure until no alcohol odor remains. The concentration temperature is 42℃ and the vacuum degree is 0.09MPa. Recover the ethanol to obtain a concentrated solution. Centrifuge the concentrated solution and collect the supernatant. Purify the supernatant with a weakly polar CAD-40 macroporous adsorption resin at a flow rate of 0.55 BV / h. First, wash the resin column with 2 BV of purified water at a flow rate of 1 BV / h. Then, elute with 8 BV of 70% ethanol at a flow rate of 1 BV / h. Collect the eluent and concentrate it under reduced pressure until no alcohol remains. The concentration temperature is 42℃ and the vacuum degree is 0.09MPa. Recover the ethanol to obtain a concentrated solution.

[0085] S4: Spray dry the concentrate to obtain the extract;

[0086] S5: Dry fresh camellia seeds at a drying temperature of 62°C for 7.5 hours, press to obtain camellia seed oil, mix the extract obtained in S4 with the camellia seed oil evenly, and mix with glucose water and emulsifier from S2, and emulsify in a nano-emulsifier to obtain camellia oil milk, wherein the emulsifier is selected from soybean lecithin, and the mass ratio of camellia seed oil, water and emulsifier is 45:25:5.

[0087] High performance liquid chromatography analysis revealed that the anthocyanin content in the camellia oil milk was 7.52%.

[0088] Example 2

[0089] A method for producing camellia oil milk includes the following steps:

[0090] S1: Wash fresh tea oil seeds, soak them in glucose water, and react them under 1000LX light for 3 hours; the mass ratio of fresh tea oil seeds to glucose water is 1:3, and the glucose concentration in the glucose water is 30%;

[0091] S2: Fresh tea oil seeds are removed from glucose water and soaked in 90% ethanol solution, and the mixture is stirred to react.

[0092] S3: Remove the tea oil seeds from the ethanol solution; concentrate the solution under reduced pressure until no alcohol odor remains. The concentration temperature is 40℃ and the vacuum degree is 0.09MPa. Recover the ethanol to obtain a concentrated solution. Centrifuge the concentrated solution and collect the supernatant. Purify the supernatant with a weakly polar CAD-40 macroporous adsorption resin at a flow rate of 0.5 BV / h. First, wash the resin column with 2 BV of purified water at a flow rate of 1 BV / h. Then, elute with 8 BV of 70% ethanol at a flow rate of 1 BV / h. Collect the eluent and concentrate it under reduced pressure until no alcohol remains. The concentration temperature is 40℃ and the vacuum degree is 0.09MPa. Recover the ethanol to obtain a concentrated solution.

[0093] S4: Spray dry the concentrate to obtain the extract;

[0094] S5: Dry fresh camellia seeds at a drying temperature of 60°C for 7 hours, press to obtain camellia seed oil, mix the extract obtained in S4 with the camellia seed oil evenly, and mix with glucose water and emulsifier in S2, and emulsify in a nano-emulsifier to obtain camellia oil milk, wherein the emulsifier is selected from soybean lecithin, and the mass ratio of camellia seed oil, water and emulsifier is 40:20:4;

[0095] High performance liquid chromatography analysis revealed that the anthocyanin content in the camellia oil milk was 6.82%.

[0096] Example 3

[0097] A method for producing camellia oil milk includes the following steps:

[0098] S1: Wash fresh tea oil seeds, soak them in glucose water, and react them under 2000LX light for 4 hours; the mass ratio of fresh tea oil seeds to glucose water is 1:4, and the glucose concentration in the glucose water is 30-40%;

[0099] S2: Fresh tea oil seeds are removed from glucose water and soaked in 90% ethanol solution, and the mixture is stirred to react.

[0100] S3: Remove the tea oil seeds from the ethanol solution; concentrate the solution under reduced pressure until there is no alcohol odor. The concentration temperature is 45℃ and the vacuum degree is 1MPa. Recover the ethanol to obtain the concentrate. Centrifuge the concentrate and collect the supernatant. Purify the supernatant with a weakly polar CAD-40 macroporous adsorption resin at a flow rate of 0.6 BV / h. First, wash the resin column with 2 BV of purified water at a flow rate of 1 BV / h. Then, elute with 8 BV of 70% ethanol at a flow rate of 1 BV / h. Collect the eluent and concentrate it under reduced pressure until there is no alcohol. The concentration temperature is 45℃ and the vacuum degree is 1MPa. Recover the ethanol to obtain the concentrate.

[0101] S4: Spray dry the concentrate to obtain the extract;

[0102] S5: Dry fresh camellia seeds at a drying temperature of 65°C for 8 hours, press to obtain camellia seed oil, mix the extract obtained in S4 with the camellia seed oil evenly, and mix with glucose water and emulsifier in S2, and emulsify in a nano-emulsifier to obtain camellia oil milk, wherein the emulsifier is selected from soybean lecithin, and the mass ratio of camellia seed oil, water and emulsifier is 50:30:7;

[0103] High performance liquid chromatography analysis revealed that the anthocyanin content in the camellia oil milk was 7.02%.

[0104] Comparative Example 1

[0105] The production method of camellia oil milk described in Example 1 differs in that S1-S4 are omitted, and fresh camellia seeds are directly dried, pressed into camellia seed oil, and then the camellia seed oil, water and emulsifier are mixed and emulsified according to the mass ratio of Example 1 to obtain camellia oil milk.

[0106] High performance liquid chromatography analysis revealed that the anthocyanin content in the camellia oil milk was 0.81%.

[0107] The above description is merely an embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent modifications made based on the content of the present invention specification and drawings, or direct or indirect applications in related technical fields, are similarly included within the patent protection scope of the present invention.

Claims

1. A method for producing camellia oil-based milk with high anthocyanin content, characterized in that, Includes the following steps: S1: Wash fresh tea oil seeds and soak them in glucose water. The mass ratio of fresh tea oil seeds to glucose water is 1:(3-4). The glucose concentration in the glucose water is 30%-40%. The mixture is then irradiated with 1000LX-2000LX light for 3-4 hours. S2: Fresh tea oil seeds are removed from glucose water and soaked in 90% ethanol solution, and the mixture is stirred to react. S3: Remove the tea oil seeds from the ethanol solution; concentrate the solution under reduced pressure until there is no alcohol odor, recover the ethanol, obtain the concentrate, centrifuge the concentrate, take the supernatant, elute the supernatant with a weakly polar CAD-40 macroporous adsorption resin at a certain flow rate, obtain the eluent, concentrate the eluent under reduced pressure until there is no alcohol, recover the ethanol, and obtain the concentrate. S4: Spray dry the concentrate to obtain the extract; S5: Dry and press fresh camellia seeds to obtain camellia seed oil. The drying temperature of the camellia seeds is 60℃-65℃ and the drying time is 7h-8h. Mix the extract obtained in S4 with the camellia seed oil evenly, and mix with the glucose water and emulsifier in S2. The emulsifier is selected from soybean lecithin. The mixture is then emulsified in an emulsification device to obtain camellia oil milk.

2. The method for producing camellia oil milk with high anthocyanin content according to claim 1, characterized in that, In step S3, the temperature for vacuum concentration of the solution is 40℃-45℃, and the vacuum degree is 0.09MPa-1MPa. The temperature for vacuum concentration of the eluent is 40-45℃, and the vacuum degree is 0.09MPa-1MPa.

3. The method for producing camellia oil milk with high anthocyanin content according to claim 1, characterized in that, In step S3, the step of eluting the supernatant with a weakly polar CAD-40 macroporous adsorption resin at a certain flow rate to obtain the eluent is specifically as follows: the supernatant is purified with a weakly polar CAD-40 macroporous adsorption resin at a flow rate of 0.5 BV / h-0.6 BV / h. First, the resin column is washed with 2 BV of purified water at a flow rate controlled at 1 BV / h. Then, it is eluted with 8 BV of 70% ethanol at a flow rate controlled at 1 BV / h. The eluent is then collected and obtained.

4. The method for producing camellia oil milk with high anthocyanin content according to claim 1, characterized in that, In step S5, the mass ratio of the tea seed oil containing the extract, glucose water, and emulsifier is (40-50):(20-30):(4-7).

5. The method for producing camellia oil milk with high anthocyanin content according to any one of claims 1-4, characterized in that, In step S5, the emulsifying device includes: frame; An emulsifying tank is connected to the frame. The emulsifying tank is a rotating body with its axis in the vertical direction. A discharge port is provided at the bottom of the emulsifying tank. An inlet pipe is coaxially arranged with and passes through the emulsifying tank. The upper end of the inlet pipe extends to the outside of the emulsifying tank, and a first pulley is sleeved on the upper part of the inlet pipe. The circumferential surface of the portion of the inlet pipe inside the emulsifying tank is provided with multiple drainage holes. The inner wall of the inlet pipe is provided with multiple guide vanes, which are arranged one-to-one with the drainage holes and are located above the drainage holes. The angle between the guide vanes and the horizontal direction is 40-60 degrees. A connecting pipe, one end of which is connected to a water storage tank, and the other end of which is connected to the upper end of an inlet pipe via a rotary joint; A liquid pump, connected to the connecting pipe, is used to pump liquid from the water storage tank to the inlet pipe; A drive motor is connected to the frame, and the output shaft of the drive motor is sleeved with a second pulley. The first pulley and the second pulley are connected by a transmission belt. A stirring rod is connected to the outer circumference of the liquid inlet pipe. Multiple sets of stirring rods are arranged vertically, and the liquid outlet is at the same height as one set of stirring rods. The feed inlet is located on one side of the upper part of the emulsifying tank; Specifically, S5 is: The inlet pipe is rotated by a drive motor, which in turn drives the stirring rod to rotate. During the rotation of the stirring rod, the glucose water in S2 is pumped into the inlet pipe through the connecting pipe, and then enters the emulsification tank through the drain hole in the inlet pipe; Meanwhile, camellia seed oil, the extract obtained from S4, and emulsifier are added from the feed inlet of the emulsification tank, and the stirring rod continuously stirs the mixture, causing the materials to undergo an emulsification reaction in the emulsification tank to obtain camellia oil milk.

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