Small-molecule-water-containing composition for preparing beautifying water and preparation method of small-molecule-water-containing composition

Abstract

The invention relates to a small molecule water-containing composition for preparing beauty water and a preparation method thereof, and belongs to the technical field of cosmetics, the composition comprises composite plant hydrolat, plant essential oil and an emulsifier; the composite plant hydrolat comprises calendula hydrolat, pawpaw hydrolat, tulip hydrolat, fructus amomi rotundus hydrolat, torreya grandis hydrolat, linden viburnum hydrolat, lignum dalbergiae odoriferae hydrolat and peony hydrolat; the plant essential oil comprises thyme oil. Most of the selected raw materials are plant hydrolats, crude plant hydrolat liquid is subjected to small molecule treatment, so that the plant hydrolat liquid is easier to absorb, more stable and more efficient, in addition, the finally selected raw materials have the effects of moisturizing, resisting oxidation and inhibiting bacteria, a good foundation is laid for moisturizing and enhancing the skin barrier function, the effects of resisting oxidation and preventing damage are achieved, and the skin care effect is achieved. The skin micro-ecology stability is maintained through bacteriostasis, the three effects are integrated, and the improvement and beautifying of the skin quality are realized.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of cosmetics, and in particular relates to a small-molecule water-containing composition for preparing cosmetic water and a preparation method thereof. BACKGROUND

[0002] Among the raw materials currently used for preparing cosmetics, plant extracts or plant essential oils are studied more, and the study and use of plant hydrolates in cosmetics are less. A hydrolate is a saturated distillation stock solution produced by distillation extraction of plants in water, and is natural and mild in composition. In addition to containing part of the essential oil components, the hydrolate also contains water-soluble substances in the plant body, such as mineral nutrients lacking in essential oils. The water used in traditional cosmetics is mostly ordinary macromolecular water, which has weak affinity with human cell membranes, resulting in insufficient transdermal absorption of active ingredients and easy impact on the final skin care effect. The smaller the water molecule cluster, the higher the hydrogen bond potential energy contained in the water molecule, and the greater the momentum of the water molecule cluster. The water with small molecule clusters, i.e. small-molecule water, has enhanced solubility, permeability, diffusion force and other physicochemical properties. However, the hydrolate is rarely further processed to small molecules in the current cosmetic field to increase the permeability of cosmetic ingredients. At present, more penetration enhancers are added to accelerate the penetration of active substances, but some penetration enhancers can easily cause skin irritation.

[0003] In addition, the existing cosmetic compositions are difficult to have multiple functions, especially in the synergistic realization of the three key functions of moisturizing, antioxidant and antibacterial. Therefore, developing a composition with natural antibacterial activity, moisturizing, antioxidant and effective skin absorption meets the development trend of the current cosmetic industry. SUMMARY

[0004] The purpose of the present application is to provide a small-molecule water-containing composition for preparing cosmetic water and a preparation method thereof, which solves the problems of difficult absorption and difficulty in having the functions of moisturizing, antioxidant and antibacterial of the existing compositions for preparing cosmetics.

[0005] The purpose of the present application can be achieved by the following technical solutions:

[0006] The small-molecule water-containing composition for preparing cosmetic water provided in the first aspect of the present application comprises the following raw materials: a composite plant hydrolate.

[0007] The composite plant hydrolate comprises calendula hydrolate, papaya hydrolate, tulip hydrolate, sand honey hydrolate, torreya hydrolate, viburnum hydrolate, olibanum hydrolate and peony flower hydrolate.

[0008] As a preferred technical scheme of the present application, the plant raw material of the calendula hydrolate is the flower of calendula (CALENDULA OFFICINALIS), and the natural moisturizing factor of the calendula hydrolate can replenish water for the stratum corneum to relieve dryness and tightness, and can also balance water and oil to improve the phenomenon of external oil and internal dryness.

[0009] The plant raw material of the chaenomeles sinensis hydrolate is the peel of chaenomeles sinensis (CHAENOMELES SINENSIS), and the chaenomeles sinensis hydrolate contains more active ingredients such as acids, aldehydes and alcohols, which can build a lasting moisturizing barrier on the skin to effectively lock in moisture, and bring long-lasting moisturizing and moisturizing effects to the skin.

[0010] The plant raw material of the tulipa gesneriana hydrolate is the flower of tulipa gesneriana (TULIPA GESNERIANA), and the tulipa gesneriana hydrolate contains various bioactive substances such as terpenoids, flavonoids and polysaccharides, among which the content of monoterpene and sesquiterpene is the highest, which can provide the ability to destroy the cell wall and membrane of bacteria to kill bacteria, and the polysaccharide can regulate the synthesis of moisturizing factor and increase the water content of the skin epidermis, creating a moist and smooth feeling of the skin, so the tulipa gesneriana flower hydrolate has both bacteriostatic and moisturizing effects.

[0011] The plant raw material of the amomum xanthiodes hydrolate is the seed of amomum xanthiodes (AMOMUM XANTHIOIDES), and the amomum xanthiodes hydrolate contains various active ingredients such as α-pinene, camphene, β-pinene, limonene, camphor and borneol acetate, which can inhibit the synthesis of adenosine triphosphate and active oxygen and significantly affect the normal metabolism of bacteria.

[0012] The plant raw material of the torreya nu-cifera hydrolate is the seed of torreya nu-cifera (TORREYA NUCIFERA), and the torreya nu-cifera hydrolate contains d-limonene and α-pinene, which can regulate ATPase activity and inhibit the growth of fungi.

[0013] The plant raw material of the viburnum prunifolium hydrolate is the stem and leaf of viburnum prunifolium (VIBURNUM PRUNIFOLIUM), and the viburnum prunifolium hydrolate contains a lot of eugenol, which can inhibit the production of superoxide, so the viburnum prunifolium hydrolate can exhibit a high free radical scavenging rate.

[0014] The plant raw material of the dalbergia odorifera hydrolate is the dried heartwood of dalbergia odorifera (DALBERGIA ODORIFERA) of leguminous plant, and the dalbergia odorifera hydrolate can effectively inhibit the generation of inflammatory factors and reduce the level of lipid peroxidation products.

[0015] The plant raw material of the peony flower hydrolat is the flower of peony (PAEONIA SUFFRUTICOSA), and the active ingredient with high antioxidant capacity in the peony flower hydrolat can directly neutralize DPPH free radicals, hydroxyl radicals and other active oxygen species (ROS), reduce the damage caused by oxidative stress, and maintain the healthy state of the skin.

[0016] As a preferred technical solution of the present application, the composite plant hydrolat comprises 6-10 parts by weight of calendula hydrolat, 3-6 parts by weight of papaya hydrolat, 1.5-2.5 parts by weight of tulip hydrolat, 1-1.5 parts by weight of honey hydrolat, 3-5 parts by weight of torreya hydrolat, 4-7 parts by weight of viburnum hydrolat, 0.5-0.8 parts by weight of lignum liquidambaris hydrolat, and 7-12 parts by weight of peony flower hydrolat.

[0017] As a preferred technical solution of the present application, the preparation method of the composite plant hydrolat is to mix all the plant hydrolats and control the temperature for stirring and mixing until uniform, thereby obtaining the composite plant hydrolat.

[0018] As a preferred technical solution of the present application, the temperature of the temperature control is 35-45℃.

[0019] Further, the preparation method of each plant hydrolat in the composite plant hydrolat comprises the following steps:

[0020] (1) The dried and pulverized plant raw material is weighed and added into distilled water, and then subjected to ultrasonic cleaning, microwave treatment and water vapor distillation extraction in sequence, thereby obtaining a distillate, and separating water and oil layers, and the water layer is the crude plant hydrolat liquid;

[0021] (2) The crude plant hydrolat liquid is subjected to ultrasonic treatment and then microwave treatment, thereby obtaining the plant hydrolat.

[0022] As a preferred technical solution of the present application, the dosage ratio of the plant raw material to distilled water in step (1) is 10-15g:15-20mL.

[0023] As a preferred technical solution of the present application, the sieving in step (1) is sieving through an 80-mesh sieve; the treatment conditions in the ultrasonic cleaner are ultrasonic time of 6-7min and ultrasonic power of 80-90W; the treatment conditions in the microwave oven are microwave time of 70-75s and microwave power of 260-280W; and the treatment conditions of the water vapor distillation extraction are vacuum degree of 10.67kPa, steam volume of 200-300L / h, and the extraction degree is controlled to be 0.5-0.6 times the mass of the obtained plant hydrolat.

[0024] As a preferred technical solution of the present application, the resonance frequency of the ultrasonic treatment in step (2) is 10000-20000 kHz, and the ultrasonic time per liter of water is 10-30 min; the microwave frequency of the microwave treatment is 1000-2000 GHz, and the microwave time per liter of water is 1-3 min.

[0025] As a preferred technical solution of the present application, the small-molecule water-containing composition for preparing the cosmetic water further comprises a plant essential oil and an emulsifier.

[0026] Further, the small-molecule water-containing composition for preparing the cosmetic water further comprises 6-13 parts by weight of a plant essential oil and 5-8 parts by weight of an emulsifier.

[0027] Still further, the plant essential oil comprises at least one of thyme oil, coconut oil, olive oil, and avocado oil, and the emulsifier comprises at least one of polyglyceryl-3 distearate, cetearyl glucoside, and cetearyl olivate.

[0028] Preferably, the plant essential oil comprises thyme oil;

[0029] Thyme (THYMUS SERPYLLUM) oil contains volatile oil substances and has the characteristics of liposomes, which can effectively prevent water evaporation and slow down the loss of water in the stratum corneum.

[0030] The present application provides a preparation method of a small-molecule water-containing composition for preparing a cosmetic water, comprising the following steps:

[0031] The plant essential oil and the emulsifier are mixed and uniformly stirred at a controlled temperature to obtain an oil phase, the compound plant hydrolate is used as a water phase, the oil phase is uniformly added to the water phase under stirring, and then speed-controlled homogenization and speed-controlled stirring are performed, and the composition is obtained.

[0032] As a preferred technical solution of the present application, the temperature of the temperature control is 60-70℃; the speed of the speed-controlled homogenization is 1000-2000 rpm, and the time is 1-3 min; and the speed of the speed-controlled stirring is 100-300 rpm, and the time is 1-2 min.

[0033] The present application provides a small-molecule water-containing composition for preparing a cosmetic water in the preparation of cosmetics, which is added at 3-5% of the total mass of the cosmetic.

[0034] The present application has the following beneficial effects:

[0035] (1) The application joins the Calendula officinalis hydrolat, the Tulipa gesneriana hydrolat to provide the water supplement and moisturizing effect, and the Chaenomeles speciosa hydrolat and the Thymus vulgaris oil are used to lock the supplemented water and active substances, so the composition prepared by the application has excellent moisturizing effect, can effectively improve the skin from the three dimensions of water supplement, moisturizing and water locking, and the skin is more tender and delicate and the smoothness of the skin is improved.

[0036] (2) The application uses the Pinus thunbergii hydrolat, the Torreya grandis hydrolat and the Tulipa gesneriana hydrolat in combination, which can synergistically make the finished product of the prepared composition have excellent bacteriostatic effect from different dimensions of affecting normal metabolism of bacteria, inhibiting growth of fungi and killing bacteria.

[0037] (3) The Viburnum dilatatum hydrolat selected by the application can scavenge free radicals, the Dalbergia odorifera hydrolat can inhibit lipid peroxidation, and the Paeonia suffruticosa hydrolat can protect cells from oxidative stress damage, so the finished product of the composition prepared therefrom has significant antioxidant effect.

[0038] (4) The plant hydrolat is a saturated distillation stock solution produced by distillation and extraction of plants in water, and is also a by-product produced during distillation and extraction of essential oils. The plant hydrolat is natural in composition, and the concentration is not as high as that of essential oils, so it is very mild and easy for the skin to absorb. Therefore, most of the raw materials selected by the application are plant hydrolat, and the crude plant hydrolat liquid is treated to be small molecules, so that it becomes more easily absorbed, more stable and more efficient. In addition, the finally selected raw materials of the application take into account the moisturizing, antioxidant and bacteriostatic effects, lay a good foundation for enhancing the skin barrier function by water supplement, prevent damage by antioxidant, and maintain the stability of the skin microecology by bacteriostasis. Three effects in one, realizing the improvement and beauty of the skin quality. BRIEF DESCRIPTION OF DRAWINGS

[0039] In order to more clearly illustrate the technical solutions of the embodiments of the application, the following will briefly introduce the drawings needed to be used in the description of the embodiments. Obviously, the drawings in the following description are only some embodiments of the application, and for those skilled in the art, other drawings can also be obtained from these drawings without creative labor.

[0040] Figure 1 The half-width detection diagram of the composition prepared for the application example 2. DETAILED DESCRIPTION

[0041] The technical solutions in the embodiments of the application will be described in detail below. Obviously, the described embodiments are only some of the embodiments of the application, not all the embodiments. Based on the embodiments in the application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the application.

[0042] Preparation Example 1

[0043] The composite plant hydrolat is prepared by mixing all the plant hydrolats and stirring at 35 ℃ to obtain the composite plant hydrolat.

[0044] The composite plant hydrolat comprises calendula hydrolat, papaya hydrolat, tulip hydrolat, sand honey hydrolat, torreya hydrolat, viburnum hydrolat, olibanum hydrolat, peony flower hydrolat.

[0045] The plant raw material of the calendula hydrolat is the flower of calendula, the plant raw material of the papaya hydrolat is the skin of papaya, the plant raw material of the tulip hydrolat is the flower of tulip, the plant raw material of the sand honey hydrolat is the seed of sand honey, the plant raw material of the torreya hydrolat is the seed of torreya, the plant raw material of the viburnum hydrolat is the stem and leaf of viburnum, the plant raw material of the olibanum hydrolat is the dried heartwood of the trunk and root of the olibanum tree of the leguminous plant, and the plant raw material of the peony flower hydrolat is the flower of peony.

[0046] The preparation method of each of the above hydrolats comprises the following steps:

[0047] (1) The dried and pulverized plant raw material through an 80-mesh sieve is added with distilled water, and then subjected to ultrasonic cleaning, microwave treatment, and finally reduced-pressure steam distillation in a steam distillation device to obtain a distillate, and the water and oil layers are separated, and the water layer is the crude plant hydrolat liquid.

[0048] The ratio of the dried and pulverized plant raw material through an 80-mesh sieve to the distilled water is 10 g:17.5 mL; the treatment conditions in the ultrasonic cleaner are an ultrasonic time of 6.5 min and an ultrasonic power of 80 W; the treatment conditions in the microwave oven are a microwave time of 70 s and a microwave power of 280 W; and the treatment conditions of the reduced-pressure steam distillation extraction are a vacuum degree of 10.67 kPa, a steam amount of 200 L / h, and an extraction degree of controlling the plant hydrolat obtained by extraction to be 0.6 times the mass of the raw material.

[0049] (2) The crude plant hydrolat liquid is subjected to ultrasonic treatment and then microwave treatment to obtain the plant hydrolat.

[0050] The resonance frequency of the ultrasonic treatment is 10,000 kHz, and the ultrasonic time per liter of water is 10 min; and the microwave frequency of the microwave treatment is 2,000 GHz, and the microwave time per liter of water is 1 min.

[0051] Preparation Example 2

[0052] The difference between Preparation Example 2 and Preparation Example 1 is only that:

[0053] In the preparation of the composite plant hydrolat, the temperature of the temperature control is 45 ℃.

[0054] In the preparation method of each hydrolat, in step (1), the dry and pulverized plant raw material through an 80-mesh sieve and distilled water are used in a ratio of 15 g:20 mL; the treatment conditions in the ultrasonic cleaner are an ultrasonic time of 6 min and an ultrasonic power of 90 W; the treatment conditions in the microwave oven are a microwave time of 75 s and a microwave power of 260 W; the treatment conditions of the reduced-pressure water vapor distillation extraction are a vacuum degree of 10.67 kPa, a steam amount of 250 L / h, and an extraction degree of controlling the plant hydrolat obtained by extraction to be 0.5 times the mass of the raw material;

[0055] In step (2), the resonance frequency of the ultrasonic treatment is 20,000 kHz, and the ultrasonic time per liter of water is 20 min; the microwave frequency of the microwave treatment is 1,000 GHz, and the microwave time per liter of water is 2 min;

[0056] The rest are the same.

[0057] Preparation Example 3

[0058] In the preparation of the composite plant hydrolat, the temperature of the temperature control is 40℃;

[0059] In the preparation method of each hydrolat, in step (1), the dry and pulverized plant raw material through an 80-mesh sieve and distilled water are used in a ratio of 15 g:20 mL; the treatment conditions in the ultrasonic cleaner are an ultrasonic time of 6 min and an ultrasonic power of 90 W; the treatment conditions in the microwave oven are a microwave time of 75 s and a microwave power of 260 W; the treatment conditions of the reduced-pressure water vapor distillation extraction are a vacuum degree of 10.67 kPa, a steam amount of 250 L / h, and an extraction degree of controlling the plant hydrolat obtained by extraction to be 0.5 times the mass of the raw material;

[0060] In step (2), the resonance frequency of the ultrasonic treatment is 20,000 kHz, and the ultrasonic time per liter of water is 20 min; the microwave frequency of the microwave treatment is 1,000 GHz, and the microwave time per liter of water is 2 min;

[0061] The rest are the same.

[0062] Examples 1-6

[0063] A small-molecule water-containing composition for preparing a cosmetic water, the small-molecule water-containing composition of Examples 1-6 respectively includes the raw materials in the weight parts shown in Table 1 below:

[0064] Table 1 Raw material composition table of the small-molecule water-containing composition of Examples 1-6

[0065]

[0066]

[0067] A preparation method of a small-molecule water-containing composition for preparing a cosmetic water, comprising the following steps:

[0068] Mixing the plant essential oil and the emulsifier and stirring uniformly at a temperature of 65℃ to obtain an oil phase, taking the composite plant hydrolate as a water phase, and adding the oil phase into the water phase at a uniform speed under stirring, homogenizing at a speed of 1500 rpm for 2 min, stirring at a speed of 200 rpm for 1.5 min, and discharging, to obtain the composition.

[0069] Comparative Example 1

[0070] Comparative Example 1 is different from Example 4 in that no marigold hydrolate is added, and the missing weight is supplemented with tulip hydrolate, papaya hydrolate and thyme oil at a mass ratio of 1:3:3, and the rest is unchanged.

[0071] Comparative Example 2

[0072] Comparative Example 2 is different from Example 4 in that no tulip hydrolate is added, and the missing weight is supplemented with marigold hydrolate, papaya hydrolate and thyme oil at an equal mass, and the rest is unchanged.

[0073] Comparative Example 3

[0074] Comparative Example 3 is different from Example 4 in that no papaya hydrolate is added, and the missing weight is supplemented with marigold hydrolate, tulip hydrolate and thyme oil at a mass ratio of 3:1:3, and the rest is unchanged.

[0075] Comparative Example 4

[0076] Comparative Example 4 is different from Example 4 in that no thyme oil is added, and the missing weight is supplemented with marigold hydrolate, tulip hydrolate and papaya hydrolate at a mass ratio of 3:1:3, and the rest is unchanged.

[0077] Comparative Example 5

[0078] Comparative Example 5 is different from Example 4 in that no sand honey hydrolate is added, and the missing weight is supplemented with torreya hydrolate and tulip hydrolate at a mass ratio of 5:2, and the rest is unchanged.

[0079] Comparative Example 6

[0080] Comparative Example 6 is different from Example 4 in that no torreya hydrolate is added, and the missing weight is supplemented with sand honey hydrolate and tulip hydrolate at a mass ratio of 1.2:2, and the rest is unchanged.

[0081] Comparative Example 7

[0082] Comparative Example 7 is different from Example 4 in that no tulip hydrolate is added, and the missing weight is supplemented with sand honey hydrolate and torreya hydrolate at a mass ratio of 1.2:5, and the rest is unchanged.

[0083] Comparative Example 8

[0084] Compared with Example 4, Comparative Example 8 differs in that viburnum hydrosol is not added, and the missing weight is made up by adding sandalwood hydrosol and peony hydrosol in a mass ratio of 0.8:9.5, while all other aspects remain unchanged.

[0085] Comparative Example 9

[0086] Compared with Example 4, Comparative Example 9 differs in that no rosewood hydrosol is added, and the missing weight is made up with viburnum hydrosol and peony hydrosol in a mass ratio of 5.5:9.5, while all other aspects remain unchanged.

[0087] Comparative Example 10

[0088] Compared with Example 4, Comparative Example 10 differs in that peony hydrosol is not added, and the missing weight is made up by viburnum hydrosol and rosewood hydrosol in a mass ratio of 5.5:0.8, while all other aspects remain unchanged.

[0089] Test Example 1

[0090] The small molecule water-containing compositions prepared in Examples 1-3 were subjected to nuclear magnetic resonance (NMR) spectroscopy for half-width detection, and the results are shown in Table 2.

[0091] Table 2 Half-width test results

[0092] Half width (Hz) Example 1 89.37 Example 2 88.82 Example 3 89.05

[0093] As can be seen from Table 2, the water-containing compositions obtained in Examples 1-3 of this application all have relatively small half-widths, with Example 2 having the smallest half-width (see Table 2). Figure 1 As can be seen, this application successfully processed crude plant hydrosol into smaller molecules, which can effectively make it easier and more efficient for the skin to absorb.

[0094] Test Example 2

[0095] Moisturizing efficacy test:

[0096] Randomly invite 12 volunteers of 25-35 years old, half male and half female, wash their faces with clean water, dry them, then sit still for 30 min in an environment with a temperature of 25℃ and a relative humidity of 55%, and then measure the water content of the facial skin of the volunteers with a skin moisture tester. The water content of the facial skin of the volunteers is between 16-17%. Randomly divide the volunteers into 7 groups, 12 volunteers in each group, and each group of volunteers corresponds to the use of a moisturizing water sample prepared by adding the combination prepared in Examples 4-6 and Comparative Examples 1-4 to the same moisturizing water base (the amount of the combination added to the sample is 4%, and the amount of application is 0.5g). 60 min after using the sample, re-measure the water content of the skin at the application site with a skin moisture tester. Take the average of the results of each group and round to one decimal place. The results are shown in Table 3.

[0097] Table 3 Moisturizing efficacy test results

[0098] Water content after 60 min / % Example 4 36.4 Example 5 35.8 Example 6 36.0 Comparative Example 1 32.1 Comparative Example 2 33.1 Comparative Example 3 31.7 Comparative Example 4 32.5

[0099] As can be seen from Table 3, the composition product prepared in the present application has excellent moisturizing effect.

[0100] Test Example 3

[0101] Bacteriostatic efficacy test:

[0102] (1) Test strains: Escherichia coli ATCC 8739, Staphylococcus aureus ATCC 6538, Bacillus subtilis ATCC 55614;

[0103] (2) Culture medium: nutrient broth medium: take 18g of nutrient broth medium solid, heat and dissolve in 1000mL of purified water, autoclave at 121℃ for 15min, and reserve for use;

[0104] (3) Preparation of bacterial suspension: after sterilization at 121℃ for 30min, the test tubes and nutrient broth medium are reserved for use. Take 5mL of nutrient broth medium and add it to 3 sterilized test tubes, and seal with silica gel plugs. After the medium cools to below 40℃, use an inoculation loop to take an appropriate amount of Escherichia coli, Staphylococcus aureus, and Bacillus subtilis, and place them in the test tubes. Mix well and incubate in a 37℃ incubator for 18-24h, so that the bacterial suspension reaches 1×10 5 CFU / mL;

[0105] (4) Test sample: the composition product prepared in Examples 4-6 and Comparative Examples 5-7, with a concentration of 2%;

[0106] (5) Test method and judgment: 300 μL of bacterial suspension was taken by a pipette and applied to the solid culture medium and evenly spread with a spreader, and a sterile forceps was used to clamp the Oxford cup and place it on the culture medium with evenly spread bacterial solution, so that the Oxford cup was in full contact with the culture medium without any gap. The position of the Oxford cup was moderate. Each bacterial strain was repeated 3 times. After 150 μL of sample liquid was added to each Oxford cup, the culture dish was placed in an incubator, and E. coli, S. aureus and B. subtilis were placed in a 37°C incubator for 24h. The diameter of the inhibition zone was measured with a ruler to observe the size of the inhibition zone. The results were the average of 3 measurements. The larger the diameter of the inhibition zone, the better the antibacterial effect. The test results are shown in Table 4.

[0107] Table 4 Antibacterial efficacy test results

[0108]

[0109] As can be seen from Table 4, the composition product prepared in the present application has excellent antibacterial effect.

[0110] Test Example 4

[0111] Antioxidant efficacy test:

[0112] DPPH was weighed and prepared into a 0.1 mg / mL DPPH solution with anhydrous ethanol. 2 mL of the composition product prepared in Examples 4-6 and Comparative Examples 8-10 was added to 1000 g of sample liquid diluted with anhydrous ethanol, 2 mL of DPPH solution was added, and mixed evenly. After reaction at room temperature for 30 min, the absorbance Ai at 517 nm was measured. At the same time, the absorbance A0 of 2 mL of DPPH solution + 2 mL of anhydrous ethanol and the absorbance Aj of 2 mL of sample liquid + 2 mL of anhydrous ethanol mixture were measured. The determination was repeated 2 times. The DPPH free radical scavenging rate of the sample was calculated by the following formula:

[0113] DPPH free radical scavenging rate (%) = (A0-Aj+Ai) / A0x100%;

[0114] Evaluation criteria: DPPH free radical scavenging ability can reflect antioxidant ability; the higher the DPPH free radical scavenging rate, the stronger the antioxidant ability, and vice versa;

[0115] The results are shown in Table 5.

[0116] Table 5 DPPH free radical scavenging rate results

[0117] DPPH radical scavenging rate (%) Example 4 96.6 Example 5 96.1 Example 6 96.3 Comparative Example 8 89.8 Comparative Example 9 91.0 Comparative Example 10 88.4

[0118] As can be seen from Table 5, the composition product prepared in the present application has significant antioxidant efficacy.

[0119] In the description, references to "one embodiment," "an example," "certain examples" etc. mean that the particular feature, structure, material, or characteristic being described is included in at least one embodiment or example of the application. The appearances of an item in various examples is not necessarily indicative of several embodiments or examples, that include the item. Furthermore, the particular features, structures, materials, or characteristics can be combined in any suitable manner in one or more embodiments or examples. It will also be appreciated by those of skill in the art that references to a structure or feature that is "near" another feature can be interpreted also to include an indirect connection, where components that are not directly connected can be connected through other components or by way of an indirect communication means. It will be apparent to those skilled in the art that various modifications and variations can be made to the specific embodiments or examples described herein. Other embodiments will be apparent from consideration of the specification and practice of the application disclosed herein. It is intended that the specification and examples be considered as exemplary only, with a true scope of the application being indicated by the following claims.

[0120] The foregoing merely illustrates the principles of the application. Various modifications and alterations to the methods and devices described herein will become apparent to those skilled in the art from the preceding description. The claims should not be limited to the particular embodiments set forth herein for the purposes of illustration and application and thus are not intended to be limiting, but rather should be interpreted broadly, in accordance with the broadest allowable interpretation of the claims. The various embodiments described herein can be combined in any way, provided the combinations are not mutually exclusive.

Claims

1. A small-molecule water-containing composition for preparing a cosmetic water, characterized by, The composite plant hydrolat comprises calendula hydrolat, papaya hydrolat, tulip hydrolat, honeycomb hydrolat, torreya hydrolat, viburnum hydrolat, agarwood hydrolat, peony flower hydrolat. The composite plant hydrolat comprises 6-10 parts by weight of calendula hydrolat, 3-6 parts by weight of papaya hydrolat, 1.5-2.5 parts by weight of tulip hydrolat, 1-1.5 parts by weight of honeycomb hydrolat, 3-5 parts by weight of torreya hydrolat, 4-7 parts by weight of viburnum hydrolat, 0.5-0.8 parts by weight of agarwood hydrolat, and 7-12 parts by weight of peony flower hydrolat.

2. The small-molecule water-containing composition for preparing a cosmetic water according to claim 1, characterized by, The preparation method of the composite plant hydrolat comprises the following steps:

3. The small-molecule water-containing composition for preparing a cosmetic water according to claim 1, characterized by, The preparation method of each plant hydrolat in the composite plant hydrolat comprises the following steps:

4. The small-molecule water-containing composition for preparing a cosmetic water according to claim 1, characterized by, (1) The dried and crushed plant raw material is added into distilled water, and then is placed in an ultrasonic cleaner, a microwave oven and a water vapor distillation device for reduced pressure water vapor distillation extraction to obtain a distillate, and the water and oil layers are separated, and the water layer is the crude plant hydrolat liquid; (2) The crude plant hydrolat liquid is subjected to ultrasonic treatment and then microwave treatment to obtain the plant hydrolat. In step (1), the dosage ratio of the plant raw material to distilled water is 10-15 g:15-20 mL; the sieving is 80-mesh sieving; the treatment conditions in the ultrasonic cleaner are ultrasonic time of 6-7 min and ultrasonic power of 80-90 W; the treatment conditions in the microwave oven are microwave time of 70-75 s and microwave power of 260-280 W; and the treatment conditions for the reduced pressure water vapor distillation extraction are vacuum degree of 10.67 kPa, steam volume of 200-300 L / h, and extraction degree of controlling the plant hydrolat obtained by extraction to be 0.5-0.6 times the mass of the raw material.

5. The small-molecule water-containing composition for preparing a cosmetic water according to claim 4, characterized by, In step (2), the resonance frequency of the ultrasonic treatment is 10,000-20,000 kHz, and the ultrasonic time per liter of water is 10-30 min; and the microwave frequency of the microwave treatment is 1,000-2,000 GHz, and the microwave time per liter of water is 1-3 min.

6. The small-molecule water-containing composition for preparing a cosmetic water according to claim 4, characterized by, The small-molecule water-containing composition for preparing the cosmetic water further comprises 6-13 parts by weight of plant essential oil and 5-8 parts by weight of emulsifier.

7. The small-molecule water-containing composition for preparing a cosmetic water according to claim 1, characterized by, The plant essential oil comprises thymus vulgaris oil, and the emulsifier comprises at least one of polyglyceryl-3 distearate, cetyl glycoside and cetyl stearyl alcohol olivate.

8. The small-molecule water-containing composition for preparing a cosmetic water according to claim 7, characterized by, The method comprises the following steps:

9. A method for preparing a small-molecule water-containing composition for preparing a cosmetic water according to any one of claims 7 to 8, characterized by, The plant essential oil and the emulsifier are mixed and uniformly stirred at a controlled temperature to obtain an oil phase, the composite plant hydrolat is used as an aqueous phase, the oil phase is uniformly added into the aqueous phase under stirring, speed-controlled homogenization is performed, speed-controlled stirring is performed, and then the product is discharged to obtain the composition. The temperature of the speed-controlled stirring is 60-70°C; the speed of the speed-controlled homogenization is 1,000-2,000 rpm, and the time is 1-3 min; and the speed of the speed-controlled stirring is 100-300 rpm, and the time is 1-2 min.

10. The method for preparing a small-molecule water-containing composition for preparing a cosmetic water according to claim 9, characterized by, ​

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