Water-soluble Kava rhizome inclusion powder and preparation method thereof

Abstract

The invention relates to the technical field of cosmetic raw materials, and specifically discloses a water-soluble kava rhizome inclusion powder and a preparation method thereof. The water-soluble kava rhizome inclusion powder is prepared from the following components: ethanol, 2,3-butylene glycol, 1,4-butylene glycol, hexylene glycol, kava rhizome original powder, water, dextrin, sodium polyglutamate, dextrin palmitate, dextrin myristate, dextrin palmitate / ethylhexanoate, and maltodextrin. The invention has the advantage of improving the water solubility of the kava rhizome original powder.

Description

Technical Field

[0001] The invention relates to the field of cosmetic raw materials, in particular to a water-soluble kava rhizome inclusion powder and a preparation method thereof. Background Art

[0002] The raw powder of Kava rhizome contains active substances such as capsaicin, dihydrocapsaicin, and capsaicin. These active substances have significant skin care effects on the skin, including improving skin hydration, reducing redness and erythema, reducing skin stinging and itching, and soothing and calming effects. Its extract is one of the main effective ingredients of soothing cosmetics.

[0003] However, the raw powder of kava rhizome is poorly soluble in water, and is difficult to use directly in formulas such as clear water, essence and spray. It also causes poor absorption by the skin and low bioavailability. Therefore, there is still room for improvement. Summary of the invention

[0004] In order to improve the water solubility of kava rhizome raw powder, the present application provides a water-soluble kava rhizome inclusion powder and a preparation method thereof.

[0005] In a first aspect, the present application provides a water-soluble kava rhizome inclusion powder, which adopts the following technical scheme: a water-soluble kava rhizome inclusion powder, which is prepared from the following components in parts by weight:

[0006] 21-25 parts of ethanol;

[0007] 2,3-Butanediol 12-16 parts;

[0008] 1,4-butanediol 8-13 parts;

[0009] 3-6 parts of hexanediol;

[0010] 7-10 parts of Kava rhizome powder;

[0011] 18-26 parts water;

[0012] 15-20 parts of dextrin;

[0013] Sodium polyglutamate 0.1-0.4 part;

[0014] Dextrin palmitate 0.3-0.8 part;

[0015] Dextrin myristate 0.5-0.7 parts;

[0016] Dextrin palmitate / ethylhexanoate 0.4-0.7 parts;

[0017] Maltodextrin 0.2-0.4 parts.

[0018] By adopting the above technical scheme, by selecting dextrin, sodium polyglutamate and maltodextrin as encapsulating agents, by selecting dextrin palmitate, dextrin myristate and dextrin palmitate / ethylhexanoate as auxiliary encapsulating agents, and by selecting ethanol, 2,3-butanediol, 1,4-butanediol and hexanediol as alcohol solvents, the raw powder of Piper mesona rhizomes can be well encapsulated, and the raw powder of Piper mesona rhizomes can be converted into a water-soluble powder sample after being encapsulated. The water-soluble Piper mesona rhizomes encapsulation powder can be directly added in the stirring and cooling stage of the formula according to the usage amount in the application of transparent water, essence and spray formulas, while ensuring the transparency requirements of transparent water, essence and spray formulas, a series of extraction treatment steps for the Piper mesona rhizomes are omitted, and the activity of active substances in the raw powder of Piper mesona rhizomes can be retained to a great extent.

[0019] The water-soluble Kava rhizome inclusion powder contains a high content of active substances. Adding a small amount in the formula application can meet the efficacy requirements. And because of its water solubility, even if a high amount is added to the formula, the risk of precipitation and stratification can be avoided.

[0020] In a second aspect, the present application provides a method for preparing a water-soluble Kava rhizome inclusion powder, using the following technical solution:

[0021] A method for preparing the above-mentioned water-soluble Kava rhizome inclusion powder comprises the following steps:

[0022] Step 1), kava pepper rhizome raw powder, ethanol, 2,3-butanediol, 1,4-butanediol, and hexanediol are uniformly mixed to obtain a premix A;

[0023] Step 2), mixing water, dextrin, sodium polyglutamate, dextrin palmitate, dextrin myristate, dextrin palmitate / ethylhexanoate, and maltodextrin to obtain a premix B;

[0024] Step 3), mixing premix A and premix B, and subjecting them to ultrasonic treatment to obtain a mixture;

[0025] Step 4), drying and grinding the mixture to obtain water-soluble Kava rhizome inclusion powder.

[0026] By adopting the above technical scheme, by selecting dextrin, sodium polyglutamate, and maltodextrin as encapsulation agents, by selecting dextrin palmitate, dextrin myristate, and dextrin palmitate / ethylhexanoate as auxiliary encapsulation agents, by selecting ethanol, 2,3-butanediol, 1,4-butanediol, and hexanediol as alcohol solvents, and by using an ultrasonic treatment process, the kava rhizome original powder is encapsulated, so that the water-soluble kava rhizome encapsulation powder can be better absorbed by the skin after application, and the powder has good stability and a wide range of market applications. It can be used in products such as soothing and anti-allergic, anti-inflammatory and analgesic, and is applicable to formulations such as gels, aqueous solutions, and emulsions and creams.

[0027] Preferably, in the step 1), the raw powder of Piper methysticum rhizome, ethanol, 2,3-butanediol, 1,4-butanediol and hexanediol are uniformly mixed at 30-40°C.

[0028] By adopting the technical solution, the raw powder of Piper mesona rhizomes can be better dispersed and dissolved, and the active substances in the raw powder of Piper mesona rhizomes are not easily destroyed, so the product quality is better.

[0029] Preferably, in the step 2), water, dextrin, sodium polyglutamate, dextrin palmitate, dextrin myristate, dextrin palmitate / ethylhexanoate, and maltodextrin are mixed uniformly at 65-75°C.

[0030] By adopting the above technical solution, dextrin, sodium polyglutamate, dextrin palmitate, dextrin myristate, dextrin palmitate / ethylhexanoate, and maltodextrin can be better dispersed and dissolved, so that the subsequent encapsulation effect is better.

[0031] Preferably, in step 3), after premix A and premix B are mixed, ultrasonic treatment is performed at 38-43°C.

[0032] By adopting the above technical scheme, the packaging effect of the raw powder of Piper mesona rhizomes is better, and it is not easy to reduce the active substances in the raw powder of Piper mesona rhizomes, and the product quality is better.

[0033] Preferably, in step 3), the ultrasonic treatment is carried out at a power of 1050-1275 W without interruption for 12-18 minutes.

[0034] By adopting the above technical solution, the wrapping effect is better, the water solubility of the raw powder of Kava rhizome is better improved, and the product quality is better.

[0035] Preferably, in step 4), vacuum freeze drying is used during drying.

[0036] By adopting the above technical solution, the active substances in the raw powder of Kava pepper rhizomes are not easily destroyed or reduced, and the product efficacy is better.

[0037] Preferably, in step 4), the vacuum pressure during vacuum freeze drying is 135-145 Pa and the temperature is (-35)-(-45)°C.

[0038] By adopting the above technical solution, the drying effect is better, the efficiency is higher, and the economic value is higher.

[0039] In summary, this application has the following beneficial effects:

[0040] 1. The present invention selects dextrin, sodium polyglutamate and maltodextrin as encapsulating agents, selects dextrin palmitate, dextrin myristate and dextrin palmitate / ethylhexanoate as auxiliary encapsulating agents, and selects ethanol, 2,3-butanediol, 1,4-butanediol and hexanediol as alcohol solvents, so that the raw powder of Piper methysticum can be well encapsulated, and the raw powder of Piper methysticum can be encapsulated to become a water-soluble powder sample. The water-soluble Piper methysticum inclusion powder can be directly added to the formula in the stirring and cooling stage according to the usage amount in the formula application of transparent water, essence and spray, while ensuring the transparency requirements of the formula of transparent water, essence and spray, a series of extraction treatment steps of the Piper methysticum rhizome are omitted, and the activity of the active substances in the raw powder of Piper methysticum rhizome can be retained to a great extent.

[0041] 2. The method of the present application selects dextrin, sodium polyglutamate, and maltodextrin as encapsulating agents, selects dextrin palmitate, dextrin myristate, and dextrin palmitate / ethylhexanoate as auxiliary encapsulating agents, selects ethanol, 2,3-butanediol, 1,4-butanediol, and hexanediol as alcohol solvents, and adopts an ultrasonic treatment process to encapsulate the raw powder of kava rhizomes, so that the water-soluble kava rhizomes inclusion powder can be better absorbed by the skin after application, and the powder has good stability and a wide range of market applications. It can be used in products such as soothing and anti-allergic, anti-inflammatory and analgesic, and is applicable to formulas such as gels, aqueous solutions, and emulsions and creams. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] Figure 1 This is a picture of the sample to be tested in Example 1;

[0043] Figure 2 This is a picture of the sample to be tested in Example 2;

[0044] Figure 3 This is a picture of the sample to be tested in Example 3;

[0045] Figure 4 This is a picture of the sample to be tested in Comparative Example 1;

[0046] Figure 5 This is a picture of the sample to be tested in comparative example 2;

[0047] Figure 6 This is a picture of the sample to be tested in Comparative Example 3;

[0048] Figure 7 This is a picture of the sample to be tested in Comparative Example 4;

[0049] Figure 8 This is a picture of the sample to be tested in Comparative Example 5;

[0050] Fig. 9 This is a picture of the test sample of Comparative Example 6;

[0051] Fig.10 This is a picture of the sample to be tested in Comparative Example 7;

[0052] Fig.11 This is a picture of the sample to be tested of Comparative Example 8;

[0053] Fig.12 This is a picture of the test sample of Comparative Example 9;

[0054] Fig.13 This is a picture of the sample to be tested of Comparative Example 10;

[0055] Fig.14 This is a picture of the sample to be tested of Comparative Example 11;

[0056] Fig.15 This is a picture of the test sample of Comparative Example 12;

[0057] Fig.16 This is a picture of the sample to be tested of Comparative Example 13;

[0058] Fig.17 This is a picture of the sample to be tested of Comparative Example 14; DETAILED DESCRIPTION

[0059] The present application is further described in detail below with reference to the embodiments.

[0060] Example 1

[0061] A water-soluble kava root inclusion powder is prepared from the following components:

[0062] Ethanol, 2,3-Butanediol, 1,4-Butanediol, Hexylene Glycol, Kava Piper melongena root powder, Water, Dextrin, Sodium Polyglutamate, Dextrin Palmitate, Dextrin Myristate, Dextrin Palmitate / Ethylhexanoate, Maltodextrin.

[0063] Ethanol is commercially available, CAS number: 64-17-5.

[0064] 2,3-Butanediol is commercially available, CAS No.: 513-85-9.

[0065] 1,4-Butanediol is commercially available, CAS No.: 110-63-4.

[0066] Hexanediol is commercially available, CAS number: 629-11-8.

[0067] The raw powder of Piper mesona rhizome was purchased from Shaanxi Jiuzhou Kangyuan Biotechnology Co., Ltd.

[0068] Dextrin is commercially available, CAS number: 9004-53-9.

[0069] Sodium polyglutamate is commercially available, CAS number: 28829-38-1.

[0070] Dextrin palmitate is commercially available, CAS number: 83271-10-7.

[0071] Dextrin myristate is commercially available, CAS number: 93792-77-9.

[0072] Dextrin palmitate / ethylhexanoate is commercially available, CAS number: 183387-52-2.

[0073] Maltodextrin is commercially available, CAS number: 9050-36-6.

[0074] The preparation method of water-soluble Kava rhizome inclusion powder is as follows:

[0075] Step 1), 7g of kava rhizome powder, 21g of ethanol, 12g of 2,3-butanediol, 8g of 1,4-butanediol, and 3g of hexanediol are put into beaker A, heated to 30° C. in a water bath, stirred at 500 rpm for 5 min, and mixed evenly to obtain premix A.

[0076] Step 2), 18 g of water, 15 g of dextrin, 0.1 g of sodium polyglutamate, 0.3 g of dextrin palmitate, 0.5 g of dextrin myristate, 0.4 g of dextrin palmitate / ethylhexanoate, and 0.2 g of maltodextrin are added into beaker B, heated to 65° C. in a water bath, stirred at 400 rpm for 6 min, and mixed evenly to obtain premix B.

[0077] Step 3), pour the premix B in beaker B into the premix A in beaker A, place beaker A in an ultrasonic machine room, and perform uninterrupted ultrasonication at 1050 W power for 12 min at 38° C. to obtain a mixture.

[0078] Step 4), take out beaker A, place it in a vacuum freeze dryer for vacuum freeze drying for 4 hours, the vacuum pressure is 135Pa, the temperature is -35°C, and a block is obtained, which is then placed in a fast ball mill for grinding at a speed of 80rpm. After grinding for 30min, the powder is placed in a sieving machine for sieving to obtain a water-soluble kava rhizome inclusion powder.

[0079] Example 2

[0080] A water-soluble kava root inclusion powder is prepared from the following components:

[0081] Ethanol, 2,3-Butanediol, 1,4-Butanediol, Hexylene Glycol, Kava Piper melongena root powder, Water, Dextrin, Sodium Polyglutamate, Dextrin Palmitate, Dextrin Myristate, Dextrin Palmitate / Ethylhexanoate, Maltodextrin.

[0082] Ethanol is commercially available, CAS number: 64-17-5.

[0083] 2,3-Butanediol is commercially available, CAS No.: 513-85-9.

[0084] 1,4-Butanediol is commercially available, CAS No.: 110-63-4.

[0085] Hexanediol is commercially available, CAS number: 629-11-8.

[0086] The raw powder of Piper mesona rhizome was purchased from Shaanxi Jiuzhou Kangyuan Biotechnology Co., Ltd.

[0087] Dextrin is commercially available, CAS number: 9004-53-9.

[0088] Sodium polyglutamate is commercially available, CAS number: 28829-38-1.

[0089] Dextrin palmitate is commercially available, CAS number: 83271-10-7.

[0090] Dextrin myristate is commercially available, CAS number: 93792-77-9.

[0091] Dextrin palmitate / ethylhexanoate is commercially available, CAS number: 183387-52-2.

[0092] Maltodextrin is commercially available, CAS number: 9050-36-6.

[0093] The preparation method of water-soluble Kava rhizome inclusion powder is as follows:

[0094] Step 1), 7.5g of kava pepper rhizome powder, 24.05g of ethanol, 15g of 2,3-butanediol, 10g of 1,4-butanediol, and 5g of hexanediol are put into beaker A, heated to 35°C in a water bath, stirred at 600rpm for 8min, and mixed evenly to obtain premix A.

[0095] Step 2), 20 g of water, 16.25 g of dextrin, 0.3 g of sodium polyglutamate, 0.5 g of dextrin palmitate, 0.6 g of dextrin myristate, 0.5 g of dextrin palmitate / ethylhexanoate, and 0.3 g of maltodextrin are put into beaker B, heated to 70° C. in a water bath, stirred at 500 rpm for 7 min, and mixed evenly to obtain premix B.

[0096] Step 3), pour the premix B in beaker B into the premix A in beaker A, place beaker A in an ultrasonic machine room, and perform uninterrupted ultrasonication at 40° C. and 1100 W power for 15 min to obtain a mixture.

[0097] Step 4), take out beaker A, place it in a vacuum freeze dryer for vacuum freeze drying for 5.5 hours, the vacuum pressure is 130Pa, the temperature is -30 ° C, and a block is obtained, which is then placed in a fast ball mill for grinding at a speed of 90 rpm. After grinding for 40 minutes, the powder is placed in a sieving machine for sieving to obtain a water-soluble kava rhizome inclusion powder.

[0098] Example 3

[0099] A water-soluble kava root inclusion powder is prepared from the following components:

[0100] Ethanol, 2,3-Butanediol, 1,4-Butanediol, Hexylene Glycol, Kava Piper melongena root powder, Water, Dextrin, Sodium Polyglutamate, Dextrin Palmitate, Dextrin Myristate, Dextrin Palmitate / Ethylhexanoate, Maltodextrin.

[0101] Ethanol is commercially available, CAS number: 64-17-5.

[0102] 2,3-Butanediol is commercially available, CAS No.: 513-85-9.

[0103] 1,4-Butanediol is commercially available, CAS No.: 110-63-4.

[0104] Hexanediol is commercially available, CAS number: 629-11-8.

[0105] The raw powder of Piper mesona rhizome was purchased from Shaanxi Jiuzhou Kangyuan Biotechnology Co., Ltd.

[0106] Dextrin is commercially available, CAS number: 9004-53-9.

[0107] Sodium polyglutamate is commercially available, CAS number: 28829-38-1.

[0108] Dextrin palmitate is commercially available, CAS number: 83271-10-7.

[0109] Dextrin myristate is commercially available, CAS number: 93792-77-9.

[0110] Dextrin palmitate / ethylhexanoate is commercially available, CAS number: 183387-52-2.

[0111] Maltodextrin is commercially available, CAS number: 9050-36-6.

[0112] The preparation method of water-soluble Kava rhizome inclusion powder is as follows:

[0113] Step 1), 10g of kava pepper rhizome powder, 25g of ethanol, 16g of 2,3-butanediol, 13g of 1,4-butanediol, and 6g of hexanediol are put into beaker A, heated to 40°C in a water bath, stirred at 700rpm for 10min, and mixed evenly to obtain premix A.

[0114] Step 2), 26 g of water, 20 g of dextrin, 0.4 g of sodium polyglutamate, 0.8 g of dextrin palmitate, 0.7 g of dextrin myristate, 0.7 g of dextrin palmitate / ethylhexanoate, and 0.4 g of maltodextrin are put into beaker B, heated to 75° C. in a water bath, stirred at 600 rpm for 8 min, and mixed evenly to obtain premix B.

[0115] Step 3), pour the premix B in beaker B into the premix A in beaker A, place beaker A in an ultrasonic machine room, and perform uninterrupted ultrasonication at 43° C. and 1275 W power for 18 min to obtain a mixture.

[0116] Step 4), take out beaker A, place it in a vacuum freeze dryer for vacuum freeze drying for 7 hours, the vacuum pressure is 145Pa, the temperature is -45 ° C, and a block is obtained, which is then placed in a fast ball mill for grinding at a speed of 95 rpm. After grinding for 45 minutes, the powder is placed in a sieving machine for sieving to obtain a water-soluble kava rhizome inclusion powder.

[0117] Comparative Example 1

[0118] A water-soluble Kava rhizome inclusion powder, compared with Example 2, the only difference is:

[0119] An equal amount of glycerol was used to replace ethanol.

[0120] Glycerol is commercially available, CAS number: 56-81-5.

[0121] Comparative Example 2

[0122] A water-soluble Kava rhizome inclusion powder, compared with Example 2, the only difference is:

[0123] Octyldodecanol was used to replace 2,3-butanediol in an equal amount.

[0124] Octyldodecanol is commercially available, CAS number: 5333-42-6.

[0125] Comparative Example 3

[0126] A water-soluble Kava rhizome inclusion powder, compared with Example 2, the only difference is:

[0127] An equal amount of 1,2-pentanediol was used to replace 1,4-butanediol.

[0128] 1,2-Pentanediol is commercially available, CAS number: 5343-92-0.

[0129] Comparative Example 4

[0130] A water-soluble Kava rhizome inclusion powder, compared with Example 2, the only difference is:

[0131] Isopentyl glycol was used to replace hexylene glycol in equal amounts.

[0132] Isopentyl glycol is commercially available, CAS number: 2568-33-4.

[0133] Comparative Example 5

[0134] A water-soluble Kava rhizome inclusion powder, compared with Example 2, the only difference is:

[0135] An equal amount of glycerol was used to replace ethanol, an equal amount of octyldodecanol was used to replace 2,3-butanediol, an equal amount of 1,2-pentanediol was used to replace 1,4-butanediol, and an equal amount of isoprenediol was used to replace hexanediol.

[0136] Glycerol is commercially available, CAS number: 56-81-5.

[0137] Octyldodecanol is commercially available, CAS number: 5333-42-6.

[0138] 1,2-Pentanediol is commercially available, CAS number: 5343-92-0.

[0139] Isopentyl glycol is commercially available, CAS number: 2568-33-4.

[0140] Comparative Example 6

[0141] A water-soluble Kava rhizome inclusion powder, compared with Example 2, the only difference is:

[0142] An equal amount of γ-cyclodextrin was used to replace dextrin.

[0143] γ-cyclodextrin is commercially available, CAS number: 17465-86-0.

[0144] Comparative Example 7

[0145] A water-soluble Kava rhizome inclusion powder, compared with Example 2, the only difference is:

[0146] Methyl-β-cyclodextrin was used to replace sodium polyglutamate in equal amounts.

[0147] Methyl-β-cyclodextrin is commercially available, CAS number: 128446-36-6.

[0148] Comparative Example 8

[0149] A water-soluble Kava rhizome inclusion powder, compared with Example 2, the only difference is:

[0150] Hydroxypropyl-β-cyclodextrin was used to replace maltodextrin in equal amounts.

[0151] Hydroxypropyl-β-cyclodextrin is commercially available, CAS number: 128446-35-5.

[0152] Comparative Example 9

[0153] A water-soluble Kava rhizome inclusion powder, compared with Example 2, the only difference is:

[0154] An equal amount of γ-cyclodextrin was used to replace dextrin, an equal amount of methyl-β-cyclodextrin was used to replace sodium polyglutamate, and an equal amount of hydroxypropyl-β-cyclodextrin was used to replace maltodextrin.

[0155] γ-cyclodextrin is commercially available, CAS number: 17465-86-0.

[0156] Methyl-β-cyclodextrin is commercially available, CAS number: 128446-36-6.

[0157] Hydroxypropyl-β-cyclodextrin is commercially available, CAS number: 128446-35-5.

[0158] Comparative Example 10

[0159] A water-soluble Kava rhizome inclusion powder, compared with Example 2, the only difference is:

[0160] Sucrose palmitate was used to replace dextrin palmitate in equal amounts.

[0161] Sucrose palmitate is commercially available, CAS number: 26446-38-8.

[0162] Comparative Example 11

[0163] A water-soluble Kava rhizome inclusion powder, compared with Example 2, the only difference is:

[0164] Potassium cetyl phosphate was used to replace dextrin myristate in an equal amount.

[0165] Potassium cetyl phosphate is commercially available, CAS number: 17026-85-6.

[0166] Comparative Example 12

[0167] A water-soluble Kava rhizome inclusion powder, compared with Example 2, the only difference is:

[0168] Dextrin palmitate / ethylhexanoate was replaced in equal amounts with sodium carboxymethyldextrin.

[0169] Sodium carboxymethyldextrin is commercially available, CAS number: 39422-83-8.

[0170] Comparative Example 13

[0171] A water-soluble Kava rhizome inclusion powder, compared with Example 2, the only difference is:

[0172] Sucrose palmitate was used to replace dextrin palmitate in equal amounts, potassium cetyl phosphate was used to replace dextrin myristate in equal amounts, and sodium carboxymethyl dextrin was used to replace dextrin palmitate / ethylhexanoate in equal amounts.

[0173] Sucrose palmitate is commercially available, CAS number: 26446-38-8.

[0174] Potassium cetyl phosphate is commercially available, CAS number: 17026-85-6.

[0175] Sodium carboxymethyldextrin is commercially available, CAS number: 39422-83-8.

[0176] Comparative Example 14

[0177] A water-soluble Kava rhizome inclusion powder, compared with Example 2, the only difference is:

[0178] Glycerol was used to replace ethanol in an equal amount, octyldodecanol was used to replace 2,3-butanediol in an equal amount, 1,2-pentanediol was used to replace 1,4-butanediol in an equal amount, isoprenediol was used to replace hexylene glycol in an equal amount, γ-cyclodextrin was used to replace dextrin in an equal amount, methyl-β-cyclodextrin was used to replace sodium polyglutamate in an equal amount, hydroxypropyl-β-cyclodextrin was used to replace maltodextrin in an equal amount, sucrose palmitate was used to replace dextrin palmitate in an equal amount, dextrin myristate was used in an equal amount with potassium cetyl phosphate, and dextrin palmitate / ethylhexanoate was used in an equal amount with sodium carboxymethyl dextrin.

[0179] Glycerol is commercially available, CAS number: 56-81-5.

[0180] Octyldodecanol is commercially available, CAS number: 5333-42-6.

[0181] 1,2-Pentanediol is commercially available, CAS number: 5343-92-0.

[0182] Isopentyl glycol is commercially available, CAS number: 2568-33-4.

[0183] γ-cyclodextrin is commercially available, CAS number: 17465-86-0.

[0184] Methyl-β-cyclodextrin is commercially available, CAS number: 128446-36-6.

[0185] Hydroxypropyl-β-cyclodextrin is commercially available, CAS number: 128446-35-5.

[0186] Sucrose palmitate is commercially available, CAS number: 26446-38-8.

[0187] Potassium cetyl phosphate is commercially available, CAS number: 17026-85-6.

[0188] Sodium carboxymethyldextrin is commercially available, CAS number: 39422-83-8.

[0189] Experiment 1

[0190] The water-soluble kava rhizome inclusion powder prepared in each embodiment and comparative example was dissolved in water to prepare a test sample. The appearance of the test sample was observed to judge the water solubility of the water-soluble kava rhizome inclusion powder, and the results were recorded as follows: ① clear and transparent, without insoluble matter, ② transparent, insoluble matter on the bottle wall, ③ slightly hazy, insoluble matter on the bottle wall, ④ semi-transparent, insoluble matter on the bottle wall, ⑤ slightly transparent, insoluble matter on the bottle wall, ⑥ turbid, insoluble matter on the bottle wall, ⑦ transparent, insoluble matter on the bottle wall and the bottom, ⑧ slightly transparent, insoluble matter on the bottle wall and the bottom, ⑨ turbid, insoluble matter on the bottle wall and the bottom.

[0191] Sample to be tested: 0.5 g of water-soluble Kava rhizome inclusion powder and 19.5 g of deionized water were put into a 30 mL plastic bottle, stirred at 600 rpm for 3 min, and allowed to stand for 3 h to obtain the sample to be tested.

[0192] The specific test data of Experiment 1 are shown in Table 1.

[0193] For details of the images of the samples to be tested in Experiment 1, see Figure 1-17 .

[0194] Table 1

[0195] Appearance of the test sample Example 1 Clear and transparent, no insoluble matter Example 2 Clear and transparent, no insoluble matter Example 3 Clear and transparent, no insoluble matter Comparative Example 1 Slightly hazy, with insoluble matter on the bottle wall Comparative Example 2 Transparent, with insoluble matter on the bottle wall Comparative Example 3 Semi-permeable, insoluble matter on the bottle wall Comparative Example 4 Semi-permeable, insoluble matter on the bottle wall Comparative Example 5 Semi-permeable, insoluble matter on the bottle wall Comparative Example 6 Slightly hazy, with insoluble matter on the bottle wall Comparative Example 7 Transparent, with insoluble matter on the bottle wall and bottom Comparative Example 8 Transparent, with insoluble matter on the bottle wall and bottom Comparative Example 9 Slightly transparent, with insoluble matter on the bottle wall Comparative Example 10 Turbid, insoluble matter on the bottle wall Comparative Example 11 Slightly transparent, with insoluble matter on the bottle wall and bottom Comparative Example 12 Turbid, insoluble matter on the bottle wall Comparative Example 13 Turbid, insoluble matter on the bottle wall Comparative Example 14 Turbid, with insoluble matter on the bottle wall and bottom

[0196] According to the data comparison of each embodiment and the comparative example in Table 1, the test samples of each embodiment are transparent without precipitation, while each comparative example is turbid with precipitation. It can be seen that the water solubility of the water-soluble kava rhizome inclusion powder of each embodiment is significantly higher than that of each comparative example. It can be seen that only by selecting dextrin, sodium polyglutamate, and maltodextrin as encapsulating agents, by selecting dextrin palmitate, dextrin myristate, and dextrin palmitate / ethylhexanoate as auxiliary encapsulating agents, and by selecting ethanol, 2,3-butanediol, 1,4-butanediol, and hexanediol as alcohol solvents, can the water solubility of the kava rhizome original powder be significantly improved. When other encapsulating agents, auxiliary encapsulating agents, and alcohol solvents are used, the effect of improving the water solubility of the kava rhizome original powder is relatively general.

[0197] This specific embodiment is merely an explanation of the present application and is not a limitation of the present application. After reading this specification, those skilled in the art may make modifications to the present embodiment without any creative contribution as needed, but such modifications are protected by the patent law as long as they are within the scope of the claims of the present application.

Claims

1. A water-soluble kava rhizome inclusion powder, characterized in that: Made from the following components in parts by weight: 21-25 parts of ethanol; 2,3-Butanediol 12-16 parts; 1,4-butanediol 8-13 parts; 3-6 parts of hexanediol; 7-10 parts of Kava rhizome powder; 18-26 parts water; 15-20 parts of dextrin; Sodium polyglutamate 0.1-0.4 part; Dextrin palmitate 0.3-0.8 part; Dextrin myristate 0.5-0.7 parts; Dextrin palmitate / ethylhexanoate 0.4-0.7 parts; Maltodextrin 0.2-0.4 parts; The CAS number of the dextrin is 9004-53-9.

2. A method for preparing the water-soluble Kava rhizome inclusion powder according to claim 1, characterized in that: The following steps are involved: Step 1), kava pepper rhizome raw powder, ethanol, 2,3-butanediol, 1,4-butanediol, and hexanediol are uniformly mixed to obtain a premix A; Step 2), water, dextrin, sodium polyglutamate, dextrin palmitate, dextrin myristate, dextrin palmitate / ethylhexanoate, and maltodextrin are uniformly mixed to obtain a premix B; Step 3), premix A and premix B are mixed and subjected to ultrasonic treatment to obtain a mixture; Step 4), drying and grinding the mixture to obtain water-soluble Kava rhizome inclusion powder.

3. The method for preparing a water-soluble Kava rhizome inclusion powder according to claim 2, characterized in that: In the step 1), the raw powder of Piper methysticum rhizome, ethanol, 2,3-butanediol, 1,4-butanediol and hexanediol are mixed uniformly at 30-40°C.

4. The method for preparing a water-soluble Kava rhizome inclusion powder according to claim 2, characterized in that: In the step 2), water, dextrin, sodium polyglutamate, dextrin palmitate, dextrin myristate, dextrin palmitate / ethylhexanoate, and maltodextrin are mixed uniformly at 65-75°C.

5. The method for preparing a water-soluble Kava rhizome inclusion powder according to claim 2, characterized in that: In the step 3), after premix A and premix B are mixed, ultrasonic treatment is performed at 38-43°C.

6. The method for preparing a water-soluble Kava rhizome inclusion powder according to claim 5, characterized in that: In the step 3), the ultrasonic treatment is performed at a power of 1050-1275 W for 12-18 minutes without interruption.

7. The method for preparing a water-soluble Kava rhizome inclusion powder according to claim 2, characterized in that: In the step 4), vacuum freeze drying is used during drying.

8. The method for preparing a water-soluble Kava rhizome inclusion powder according to claim 7, characterized in that: In the step 4), the vacuum pressure during vacuum freeze drying is 135-145 Pa and the temperature is (-35)-(-45)°C.

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