Gorgon fruit and lotus seed juice and preparation method thereof

Abstract

The invention relates to gordon euryale seed and lotus seed juice and a preparation method thereof. The gordon euryale seed and lotus seed juice is prepared from the following raw materials in parts by mass: 100 parts of purified water; 15 to 18 parts of white granulated sugar; 0.1 to 0.5 part of vitamin C; 0.1 to 0.5 part of D-sodium erythorbate; 0.1 to 0.5 part of glycerin monostearate; 5-8 parts of semen euryales; 5-8 parts of lotus seeds; and 3-8 parts of Chinese yam. The gordon euryale seed and lotus seed juice can be kept stable for a long time, and material sedimentation is reduced.

Description

Technical Field

[0001] The present invention relates to the field of food, and particularly relates to a gorgon fruit and lotus seed drink and a preparation method thereof. Background Art

[0002] Gorgon fruit and lotus seed are common Chinese medicinal materials that can be used both as food and medicine. Among them, gorgon fruit has the effects of delaying aging, regulating blood sugar, protecting kidney function, preventing blood vessel blockage, etc., and lotus seed has the effects of helping sleep, reducing internal heat, lowering blood pressure, beautifying the skin, strengthening the kidney, etc. Cooking gorgon fruit and lotus seed into food or decocting them into traditional Chinese medicine can exert their edible and medicinal values, but the operation is complex and not convenient enough. Making gorgon fruit and lotus seed into an instant drink is expected to solve this problem. However, gorgon fruit and lotus seed in the drink are prone to sedimentation during long-term storage, which reduces the taste and quality of the drink and is not conducive to the storage of the drink. Summary of the Invention

[0003] Aiming at the deficiencies of the prior art, the first object of the present invention is to provide a gorgon fruit and lotus seed drink that can remain stable for a long time and reduce the sedimentation of materials.

[0004] The second object of the present invention is to provide a preparation method of the gorgon fruit and lotus seed drink. The preparation method has simple steps, can make the raw materials disperse evenly, and is conducive to the materials remaining stable.

[0005] To achieve the first object of the present invention, the present invention provides a gorgon fruit and lotus seed drink, which is prepared from the following raw materials in parts by mass: 100 parts of purified water; 15 - 18 parts of granulated sugar; 0.1 - 0.5 part of vitamin C; 0.1 - 0.5 part of D-sodium erythorbate; 0.1 - 0.5 part of glycerol monostearate; 5 - 8 parts of gorgon fruit; 5 - 8 parts of lotus seed; 3 - 8 parts of Chinese yam.

[0006] In some embodiments of the present invention, the gorgon fruit and lotus seed drink is prepared from the following raw materials in parts by mass: 100 parts of purified water; 15 - 16 parts of granulated sugar; 0.1 - 0.3 part of vitamin C; 0.2 - 0.5 part of D-sodium erythorbate; 0.1 - 0.2 part of glycerol monostearate; 5 - 6 parts of gorgon fruit; 5 - 6 parts of lotus seed; 5 - 8 parts of Chinese yam.

[0007] In some embodiments of the present invention, the lotus seeds are cored; the Chinese yam is peeled.

[0008] To achieve the second object of the present invention, the present invention provides a preparation method of the above-mentioned gorgon fruit and lotus seed drink, which includes the following steps: crushing and grinding gorgon fruit, lotus seed and Chinese yam, passing through a 400-mesh sieve, adding other raw materials and mixing evenly, boiling, and performing high-temperature sterilization to obtain the gorgon fruit and lotus seed drink.

[0009] In some embodiments of the present invention, the preparation method specifically includes the following steps:

[0010] Step 1: Mix the euryale ferox with the first portion of purified water, soak, boil, crush, and grind to obtain the euryale ferox crushed liquid; mix the lotus seeds with the second portion of purified water, soak, boil, crush, and grind to obtain the lotus seed crushed liquid; cut the Chinese yam into pieces and mix it with sodium D-isoascorbate and the third portion of purified water, crush, and grind to obtain the Chinese yam crushed liquid; pass the euryale ferox crushed liquid, the lotus seed crushed liquid, and the Chinese yam crushed liquid through a 400-mesh sieve respectively; add granulated sugar to the fourth portion of purified water and stir until completely dissolved to obtain the sugar water.

[0011] Step 2: Mix the euryale ferox crushed liquid, the lotus seed crushed liquid, the Chinese yam crushed liquid, and glyceryl monostearate, stir for 20 - 30 min, and boil for 5 - 10 min; then keep stirring and boiling, add the sugar water, and continue for 3 - 10 min.

[0012] Step 3: Cool the obtained liquid, add vitamin C and stir at a temperature below 40°C, and then perform high-temperature sterilization.

[0013] In some embodiments of the present invention, the first portion of purified water is 10 - 20 parts; the second portion of purified water is 10 - 20 parts; the third portion of purified water is 10 - 20 parts; the fourth portion of purified water is the remaining purified water.

[0014] In some embodiments of the present invention, in Step 1, when preparing the euryale ferox crushed liquid, soak for 3 - 5 h and boil for 1 - 2 h; when preparing the lotus seed crushed liquid, soak for 3 - 5 h and boil for 1 - 2 h.

[0015] In some embodiments of the present invention, in Step 2, the stirring speed is 150 - 300 rpm.

[0016] In some embodiments of the present invention, in Step 3, the high-temperature sterilization step includes heating at 60 - 80°C for 5 - 10 min, or heating at 120 - 130°C for 5 - 30 s.

[0017] In some embodiments of the present invention, after Step 3, there is also Step 4: Cool the liquid obtained in Step 3 and perform vacuum filling.

[0018] Compared with the prior art, the present invention can achieve the following beneficial effects:

[0019] The euryale ferox and lotus seed drink of the present invention contains not only euryale ferox and lotus seeds, but also Chinese yam. In addition to providing the edible and medicinal effects of Chinese yam itself, Chinese yam can also cooperate with glyceryl monostearate, etc. to improve the stability of the euryale ferox and lotus seed drink, prevent the euryale ferox and lotus seeds in the euryale ferox and lotus seed drink from settling during normal storage, placement, and transportation, which affects the consumption. In addition, the present invention also uses sodium D-isoascorbate and vitamin C to improve the antioxidant performance of the euryale ferox and lotus seed drink, and further improve the storage stability of the euryale ferox and lotus seed drink. Detailed implementation mode

[0020] An embodiment of the present invention provides a Euryale ferox and lotus seed drink. This Euryale ferox and lotus seed drink can maintain good stability during storage. During storage, placement, and transportation after the Euryale ferox and lotus seed drink is prepared, the materials are not prone to sedimentation. The materials can remain evenly dispersed for a long time, without affecting the taste, flavor, and efficacy of the Euryale ferox and lotus seed drink. The Euryale ferox and lotus seed drink of this embodiment can be made into different beverage forms such as bottled, canned, boxed, etc., and can also be directly consumed after production.

[0021] Specifically, the Euryale ferox and lotus seed drink of this embodiment is prepared from the following raw materials in parts by mass: 100 parts of purified water; 15 - 18 parts of granulated sugar; 0.1 - 0.5 parts of vitamin C; 0.1 - 0.5 parts of D-sodium erythorbate; 0.1 - 0.5 parts of glycerol monostearate; 5 - 8 parts of Euryale ferox; 5 - 8 parts of lotus seeds; 3 - 8 parts of Chinese yam.

[0022] Among them, purified water acts as a solvent or diluent, playing the role of dissolving, dispersing, and diluting raw materials, making various components evenly dispersed, and can also adjust the concentration and taste of the Euryale ferox and lotus seed drink by controlling the amount of water. In this embodiment, based on the amount of purified water being 100 parts by mass, the amounts of other raw materials are determined.

[0023] The main function of granulated sugar is to provide sweetness, improve the taste of the Euryale ferox and lotus seed drink, make the Euryale ferox and lotus seed drink have a moderate sweetness, and increase the flavor and acceptability of the Euryale ferox and lotus seed drink. Granulated sugar also increases the density, viscosity, and stability of the beverage to a certain extent, helping to maintain the uniform texture of the beverage. In this embodiment, relative to 100 parts by mass of purified water, the addition amount of granulated sugar is 15 - 18 parts by mass, for example, it can be 15 parts, 16 parts, 17 parts, 18 parts, etc.

[0024] Vitamin C is a natural antioxidant, which can effectively prevent the oxidation of nutrients and flavor substances such as Euryale ferox, lotus seeds, and Chinese yam in the Euryale ferox and lotus seed drink during processing or storage, maintain the freshness and stability of the Euryale ferox and lotus seed drink, and prevent the Euryale ferox and lotus seed drink from discoloring, maintaining the color of the beverage. Vitamin C can also supplement the vitamin C required by the human body and enhance the nutritional value of the beverage. In this embodiment, relative to 100 parts by mass of purified water, the amount of vitamin C used is 0.1 - 0.5 parts by mass, for example, it can be 0.1 part, 0.2 part, 0.3 part, 0.4 part, 0.5 part, etc.

[0025] Sodium D-isoascorbate has an efficient antioxidant effect, can effectively prevent lipid oxidation in beverages, prevent them from discoloring, extend the shelf life, and also has a certain antibacterial effect, which can inhibit the growth of microorganisms. In addition, sodium D-isoascorbate can be converted into vitamin C in the human body and has a certain nutritional supplement effect. In this embodiment, relative to 100 parts by mass of pure water, the dosage of sodium D-isoascorbate is 0.1 to 0.5 parts by mass, for example, it can be 0.1 part, 0.2 part, 0.3 part, 0.4 part, 0.5 part, etc.

[0026] Glycerol monostearate has an emulsifying effect, can make the Euryale ferox, lotus seeds and Chinese yams fully mix with water, prevent precipitation, maintain the uniformity and stability of the Euryale ferox and lotus seed dew, and can also improve the taste, making the taste of the Euryale ferox and lotus seed dew more delicate and smooth. In this embodiment, relative to 100 parts by mass of pure water, the dosage of glycerol monostearate is 0.1 to 0.5 parts by mass, for example, it can be 0.1 part, 0.2 part, 0.3 part, 0.4 part, 0.5 part, etc.

[0027] As one of the main nutritional components of the Euryale ferox and lotus seed dew, the Euryale ferox is rich in nutrients such as protein, starch, vitamins and minerals, providing rich nutrition. The Euryale ferox has the effects of invigorating the spleen and stopping diarrhea, tonifying the kidney and astringing essence, removing dampness and arresting leukorrhea, etc. In this embodiment, relative to 100 parts by mass of pure water, the dosage of the Euryale ferox is 5 to 8 parts by mass, for example, it can be 5 parts, 6 parts, 7 parts, 8 parts, etc.

[0028] As one of the main nutritional components of the Euryale ferox and lotus seed dew, the lotus seeds contain rich protein, carbohydrates, vitamins and minerals, and are rich in nutrition. The lotus seeds have the effects of nourishing the heart and calming the mind, invigorating the spleen and stopping diarrhea, tonifying the kidney and astringing essence, etc. The delicate fragrance of the lotus seeds can also add a unique flavor to the Euryale ferox and lotus seed dew. In this embodiment, relative to 100 parts by mass of pure water, the dosage of the lotus seeds is 5 to 8 parts by mass, for example, it can be 5 parts, 6 parts, 7 parts, 8 parts, etc.

[0029] Adding Chinese yams to the Euryale ferox and lotus seed dew can not only provide rich carbohydrates, protein, vitamin C, vitamin B groups and various minerals, but also further improve the storage stability of the Euryale ferox and lotus seed dew. Chinese yams have the effects of invigorating the spleen and benefiting the lungs, tonifying the kidney and astringing essence. The texture of Chinese yams is delicate and rich in mucoprotein, which can make the Euryale ferox and lotus seed dew thicker, make the Euryale ferox, lotus seeds, etc. more evenly dispersed, and make the taste of the Euryale ferox and lotus seed dew better. In this embodiment, relative to 100 parts by mass of pure water, the dosage of Chinese yams is 3 to 8 parts by mass, for example, it can be 3 parts, 4 parts, 5 parts, 6 parts, 7 parts, 8 parts, etc.

[0030] The Euryale ferox and lotus seed dew of this embodiment mainly contains Euryale ferox, lotus seeds and Chinese yams. All three are foods that are both edible and medicinal, making the Euryale ferox and lotus seed dew have the effects of enhancing immunity, nourishing the heart and calming the mind, strengthening the spleen and regulating the stomach, and dispelling dampness and stopping diarrhea. In addition to providing the edible and medicinal effects of Chinese yam itself, Chinese yam can also cooperate with monostearate, etc. to improve the stability of the Euryale ferox and lotus seed dew, preventing the Euryale ferox and lotus seeds in the Euryale ferox and lotus seed dew from settling during normal storage, placement and transportation, which affects the edibility. This embodiment also uses sodium D-isoascorbate and vitamin C to improve the antioxidant performance of the Euryale ferox and lotus seed dew, further improving the storage stability of the Euryale ferox and lotus seed dew.

[0031] In some examples, the Euryale ferox and lotus seed dew is prepared from the following raw materials in parts by mass: 100 parts of purified water; 15 - 16 parts of granulated sugar; 0.1 - 0.3 part of vitamin C; 0.2 - 0.5 part of sodium D-isoascorbate; 0.1 - 0.2 part of glycerol monostearate; 5 - 6 parts of Euryale ferox; 5 - 6 parts of lotus seeds; 5 - 8 parts of Chinese yams. When the dosage of each component is within the above range, the Euryale ferox and lotus seed dew has better storage stability.

[0032] In some examples, the lotus seeds are pitted and then used as raw materials to prepare the Euryale ferox and lotus seed dew, avoiding the bitterness of the lotus seed cores from covering up the fragrance and sweetness of the Euryale ferox and lotus seed dew and affecting the overall taste.

[0033] In some examples, the Chinese yams are peeled and then used as raw materials to prepare the Euryale ferox and lotus seed dew, avoiding the Chinese yam skins from affecting the taste of the Euryale ferox and lotus seed dew.

[0034] In some examples, the preparation method of the Euryale ferox and lotus seed dew includes the following steps: crushing and grinding the Euryale ferox, lotus seeds and Chinese yams, passing through a 400-mesh sieve, adding other raw materials and mixing evenly, and then performing high-temperature sterilization to obtain the Euryale ferox and lotus seed dew.

[0035] In some examples, the preparation method of the Euryale ferox and lotus seed dew includes the following steps: Step 1: Mix the Euryale ferox with the first part of purified water, soak, boil, crush and grind to obtain an Euryale ferox crushed liquid; mix the lotus seeds with the second part of purified water, soak, boil, crush and grind to obtain a lotus seed crushed liquid; cut the Chinese yams into pieces and mix them with sodium D-isoascorbate and the third part of purified water, crush and grind to obtain a Chinese yam crushed liquid; the Euryale ferox crushed liquid, the lotus seed crushed liquid and the Chinese yam crushed liquid are respectively passed through a 400-mesh sieve; add granulated sugar to the fourth part of purified water and stir until completely dissolved to obtain a sugar solution. Step 2: Mix the Euryale ferox crushed liquid, the lotus seed crushed liquid, the Chinese yam crushed liquid and glycerol monostearate, stir for 20 - 30 min, and then boil for 5 - 10 min; then keep stirring and boiling, add the sugar solution, and continue for 3 - 10 min. Step 3: Cool the obtained liquid to room temperature, add vitamin C and stir at a temperature below 40°C, and then perform high-temperature sterilization.

[0036] Among them, in Step 1, mixing the euryale ferox, lotus seeds and Chinese yams with water can avoid the premature oxidation of the euryale ferox, lotus seeds and Chinese yams, especially Chinese yams, caused by contact with air, and at the same time is conducive to the dispersion of the pulverized substances of the euryale ferox, lotus seeds and Chinese yams; soaking, boiling and then pulverizing and grinding the euryale ferox and lotus seeds first can make the euryale ferox and lotus seeds softer and thus easier to pulverize; cutting the Chinese yams into pieces, mixing them with sodium D-isoascorbate and the third part of pure water, and directly pulverizing and grinding them, the mucoprotein contained in the Chinese yams can promote the dispersion of the materials, and sodium D-isoascorbate can further prevent the oxidation of the Chinese yams.

[0037] In Step 2, mixing the pulverized liquids of the three main ingredients, using the mucoprotein in the Chinese yam dispersion liquid to enhance the material analysis, and adding glycerol monostearate to promote dispersion, can make the euryale ferox, lotus seeds and Chinese yams disperse evenly in the aqueous solution; after stirring, boiling the mixture to cook the ingredients can kill bacteria, viruses, etc., improve the digestion and absorption rate, and improve the taste and flavor.

[0038] In Step 3, adding vitamin C after cooling can avoid the oxidation of vitamin C and improve the nutritional value and antioxidant property of the euryale ferox and lotus seed beverage.

[0039] In some examples, the first part of pure water is 10 - 20 parts; the second part of pure water is 10 - 20 parts; the third part of pure water is 10 - 20 parts; the fourth part of pure water is the remaining pure water. Using a certain amount of water to mix with the euryale ferox, lotus seeds and Chinese yams respectively to prepare the pulverized liquid first is conducive to the pulverization of the euryale ferox, lotus seeds and Chinese yams.

[0040] In some examples, in Step 1, the lotus seed pulverized liquid, the euryale ferox pulverized liquid, and the Chinese yam pulverized liquid respectively pass through a 400 - mesh sieve to pulverize the raw materials finer, which is conducive to dispersion, and pulverizing the Chinese yams into finer particles can make more mucoprotein of the Chinese yams diffuse out and improve the dispersion effect.

[0041] In some examples, in Step 1, when preparing the euryale ferox pulverized liquid, soak for 3 - 5 h and boil for 1 - 2 h, and when preparing the lotus seed pulverized liquid, soak for 3 - 5 h and boil for 1 - 2 h, so that the euryale ferox and lotus seeds can be softer and thus better pulverized, saving energy consumption.

[0042] In some examples, in Step 2, the stirring speed is 150 - 300 rpm, which can make the mixture disperse evenly and reduce the air mixed into the liquid.

[0043] In some examples, in Step 3, the steps of high - temperature sterilization include heating at 60 - 80 °C for 5 - 10 min, or heating at 120 - 130 °C for 5 - 30 s, trying to avoid the decomposition of vitamin C.

[0044] In some examples, after step three, there is further step four: vacuum filling the liquid obtained in step three, creating a low-oxygen environment in the tank to prevent oxidation, extend the shelf life of the product, and also enable precise control of the filling volume.

[0045] The present invention will be further described in detail below through specific embodiments. In the following embodiments, the types and sources of raw materials with the same name are the same.

[0046] The raw material dosages of the examples and comparative examples are shown in Table 1 below.

[0047] Table 1 Raw material dosages (parts by mass)

[0048]

[0049] Among them, the preparation methods of Examples 1-3 and Comparative Examples 1-2 are as follows:

[0050] Step one: Mix the euryale ferox with 15 parts of purified water, soak for 4 h, boil for 1 h, crush, grind, and pass through a 400-mesh sieve to obtain a crushed euryale ferox liquid. Mix the lotus seeds with 15 parts of purified water, soak for 4 h, boil for 1 h, crush, grind, and pass through a 400-mesh sieve to obtain a crushed lotus seed liquid. Cut the Chinese yam into pieces, and mix it with sodium D-isoascorbate and 15 parts of purified water, crush, grind, and pass through a 400-mesh sieve to obtain a crushed Chinese yam liquid. Add granulated sugar to the remaining purified water and stir until completely dissolved to obtain sugar water.

[0051] Step two: Mix the crushed euryale ferox liquid, crushed lotus seed liquid, crushed Chinese yam liquid and glyceryl monostearate, stir at 300 rpm for 30 min, and then boil for 10 min while stirring. Then, while maintaining stirring and boiling, add the sugar water and continue for 10 min.

[0052] Step three: Cool the obtained liquid, add vitamin C at 35°C and stir for 5 min, and then heat at 130°C for 10 s for high-temperature sterilization.

[0053] Step four: Quickly cool the liquid obtained in step three and vacuum fill it.

[0054] The preparation method of Example 4 is as follows:

[0055] Step one: Mix the euryale ferox with 15 parts of purified water, soak for 4 h, boil for 1 h, crush, grind, and pass through a 400-mesh sieve to obtain a crushed euryale ferox liquid. Mix the lotus seeds with 15 parts of purified water, soak for 4 h, boil for 1 h, crush, grind, and pass through a 400-mesh sieve to obtain a crushed lotus seed liquid. Cut the Chinese yam into pieces, and mix it with sodium D-isoascorbate and 15 parts of purified water, soak for 4 h, boil for 1 h, crush, grind, and pass through a 400-mesh sieve to obtain a crushed Chinese yam liquid. Add granulated sugar to the remaining purified water and stir until completely dissolved to obtain sugar water.

[0056] Step 2: Mix the pulverized liquid of Euryale ferox, the pulverized liquid of lotus seeds, the pulverized liquid of Chinese yams, and glyceryl monostearate, stir at 300 rpm for 30 min, and then boil for 10 min while stirring. Next, while maintaining stirring and boiling, add the sugar water and continue for 10 min.

[0057] Step 3: Cool the obtained liquid, add vitamin C at 35°C and stir for 5 min, and then heat at 130°C for 10 s for high-temperature sterilization.

[0058] Step 4: Rapidly cool the liquid obtained in Step 3 and fill it under vacuum.

[0059] The preparation method of Example 5 is as follows:

[0060] Step 1: Mix Euryale ferox, lotus seeds, Chinese yams with D-isoascorbic acid sodium and 45 parts of pure water, pulverize, grind, and pass through a 400-mesh sieve to obtain a pulverized liquid. Add granulated sugar to the remaining pure water and stir until completely dissolved to obtain sugar water.

[0061] Step 2: Mix the pulverized liquid and glyceryl monostearate, stir at 300 rpm for 30 min, and then boil for 10 min while stirring. Next, while maintaining stirring and boiling, add the sugar water and continue for 10 min.

[0062] Step 3: Cool the obtained liquid, add vitamin C at 35°C and stir for 5 min, and then heat at 130°C for 10 s for high-temperature sterilization.

[0063] Step 4: Rapidly cool the liquid obtained in Step 3 and fill it under vacuum.

[0064] For multiple samples of the canned beverages obtained from the examples and comparative examples, with each can being 250 mL, pour out the liquid in the canned beverages at 0 months, 3 months, 6 months, and 12 months respectively, let it stand for 2 h, then measure 50 mL of the upper-layer liquid and weigh it to compare the weight changes, so as to measure the sedimentation of the materials.

[0065] Table 2 Weight of the upper-layer liquid (g)

[0066]

[0067] As shown in the above table, the Euryale ferox and lotus seed nectar prepared in the examples of the present invention can well prevent the sedimentation of materials and maintain the stability of the liquid during storage.

[0068] Finally, it should be emphasized that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A kind of Euryale ferox and lotus seed dew, characterized in that Prepared from the following raw materials by mass parts: 100 parts of purified water; 15 - 18 parts of granulated sugar; 0.1 - 0.5 part of vitamin C; 0.1 - 0.5 part of sodium D - isoascorbate; 0.1 - 0.5 part of glycerol monostearate; 5 - 8 parts of Euryale ferox Salisb.; 5 - 8 parts of lotus seeds; 3 - 8 parts of Chinese yam.

2. The Euryale ferox and lotus seed drink according to claim 1, characterized in that Prepared from the following raw materials by mass parts: 100 parts of purified water; 15 - 16 parts of granulated sugar; 0.1 - 0.3 part of vitamin C; 0.2 - 0.5 part of sodium D - isoascorbate; 0.1 - 0.2 part of glycerol monostearate; 5 - 6 parts of Euryale ferox Salisb.; 5 - 6 parts of lotus seeds; 5 - 8 parts of Chinese yam.

3. The Euryale ferox and lotus seed dew according to claim 2, characterized in that: The lotus seeds are cored; the Chinese yam is peeled.

4. A method for preparing Euryale ferox and lotus seed dew according to any one of claims 1 to 3, characterized in that It includes: Crush, grind Euryale ferox Salisb., lotus seeds and Chinese yam, pass through a 400 - mesh sieve, add other raw materials and mix evenly, then sterilize at high temperature to obtain Euryale ferox and lotus seed dew.

5. The preparation method according to claim 4, characterized in that Specifically, it includes the following steps: Step 1: Mix Euryale ferox Salisb. with the first part of purified water, soak, boil, crush and grind to obtain Euryale ferox Salisb. crushed liquid; mix lotus seeds with the second part of purified water, soak, boil, crush and grind to obtain lotus seed crushed liquid; cut Chinese yam into pieces, and mix with sodium D - isoascorbate and the third part of purified water, crush and grind to obtain Chinese yam crushed liquid; the Euryale ferox Salisb. crushed liquid, the lotus seed crushed liquid and the Chinese yam crushed liquid respectively pass through a 400 - mesh sieve; add granulated sugar to the fourth part of purified water and stir until completely dissolved to obtain sugar water; Step 2: Mix the Euryale ferox Salisb. crushed liquid, the lotus seed crushed liquid, the Chinese yam crushed liquid and glycerol monostearate, stir for 20 - 30 min, boil for 5 - 10 min; then keep stirring and boiling, add the sugar water, and continue for 3 - 10 min; Step 3: Cool the obtained liquid, add vitamin C and stir at a temperature below 40 °C, and then sterilize at high temperature.

6. The preparation method according to claim 5, characterized in that: The first part of purified water is 10 - 20 parts; The second part of purified water is 10 - 20 parts; The third part of purified water is 10 - 20 parts; The fourth part of purified water is the remaining purified water.

7. The preparation method according to claim 5, characterized in that: In Step 1, when preparing the Euryale ferox Salisb. crushed liquid, soak for 3 - 5 h and boil for 1 - 2 h; when preparing the lotus seed crushed liquid, soak for 3 - 5 h and boil for 1 - 2 h.

8. The preparation method according to claim 5, characterized in that: In Step 2, the stirring speed is 150 - 300 rpm.

9. The preparation method according to claim 5, characterized in that: In Step 3, the high - temperature sterilization step includes heating at 60 - 80 °C for 5 - 10 min, or heating at 120 - 130 °C for 5 - 30 s.

10. The preparation method according to claim 5, characterized in that: After Step 3, it further includes Step 4: Cool the liquid obtained in Step 3 and vacuum fill.

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