A kind of peony seed film powder and its preparation method and application

Abstract

The invention discloses a peony seed film powder and a preparation method and application thereof, and relates to the technical field of daily chemical products. The invention provides a peony seed film powder, wherein the particle size D50 of the peony seed film powder is 1-3 μm, the bulk density is 0.15-0.25 g / mL, the oil content is 0.05-0.15%, and the crude fiber content is 7.0-7.5%. After the production process of steam explosion-supercritical carbon dioxide extraction-first ultrafine grinding-high pressure micro jet homogenization-freeze drying-secondary ultrafine grinding is combined, first, the molecular conformation of the peony seed meal powder is improved, and the obtained peony seed film powder has an ultrafine particle size and a loose porous structure, the powder is fine, and the skin feels breathable and smooth; second, the obtained peony seed film powder has ultra-low oil content and lasting water retention; third, the obtained peony seed film powder increases the dissolution rate of active substances such as soluble protein and peony polyphenols, and the anti-inflammatory, soothing and antioxidant brightening effects are better.

Description

Technical Field

[0001] The invention relates to the technical field of daily chemical products, in particular to peony seed film powder and a preparation method and application thereof. Background Art

[0002] Pollutants such as dust in the air, car exhaust, and industrial waste gas may adhere to our skin at any time. Cleansing masks have a broad market because they can absorb these pollutants, clean pores, and help the skin restore to a clean state. There are many types of cleansing masks on the market, including mud, cream, paste, powder, etc. Among them, mud and powder products are favored by many consumers due to their excellent degreasing and cleaning effects. However, there are many defects in the cleansing masks on the market. On the one hand, many products have a heavy texture due to the addition of a large amount of drying and adsorbent minerals, and it is not easy to evenly cover the entire face. When applied to the face, it will give the user a dull and uncomfortable feeling. On the other hand, it is easy to dry out if the face is applied for a little longer. Once the mask dries, it will absorb moisture from the skin, causing the skin to become dry and tight. Moreover, it is difficult to clean after drying, and it takes more time and effort to clean it thoroughly. It may remain on the skin texture and around the pores. If it is not cleaned thoroughly, these residual ingredients will clog the pores and cause skin problems such as acne.

[0003] In order to improve the above problems, people often increase the amount of oil, starch, and talcum powder added in the formula of cleansing facial masks. The addition of oil can make the texture of the mask more moisturizing, while starch and talcum powder help to improve the smoothness of the mask. However, the final results of these improvement methods are not satisfactory. Moreover, increasing the oil content requires the addition of more emulsifiers to ensure that the oil can be evenly dispersed in the mask. Too much emulsifier and talcum powder will irritate the skin and cause skin problems such as allergies and acne. In addition, traditional cleansing facial masks only have a cleansing effect, but have obvious limitations in long-term moisturizing, anti-inflammatory soothing, and anti-oxidation and brightening.

[0004] If consumers want to achieve multiple effects such as cleansing, long-lasting moisturizing, anti-inflammatory soothing, and anti-oxidant brightening at the same time, they often need to use different types of skin care products in combination, which is a relatively complicated process. How to improve the efficacy and comfort of cleansing masks is still an urgent problem to be solved. Summary of the invention

[0005] Based on this, the purpose of the present invention is to overcome the shortcomings of the above-mentioned prior art and provide a peony seed film powder and a preparation method and application thereof.

[0006] To achieve the above purpose, the technical solution adopted by the present invention is: a peony seed membrane powder, the particle size D50 of the peony seed membrane powder is 1-3μm, the bulk density is 0.15-0.25g / mL, the oil content is 0.05-0.15%, and the crude fiber content is 7.0-7.5%.

[0007] Preferably, the peony seed membrane powder has a particle size D50 of 1-1.2 μm, a bulk density of 0.15-0.2 g / mL, a fat content of 0.05-0.09%, and a crude fiber content of 7.4-7.5%.

[0008] The present invention provides a method for preparing the peony seed film powder, comprising the following steps:

[0009] S1, steam-exploding peony seed meal powder, and then extracting it with supercritical carbon dioxide to obtain a mixture A;

[0010] S2, the de-oiled peony seed meal powder is subjected to a superfine grinding, and after sieving, a high-pressure micro-jet homogenization treatment is performed to obtain a mixture B; the pressure of the superfine grinding is 0.5-0.8MPa, and the mixture is sieved through a 250-350 mesh sieve;

[0011] S3, freeze-drying the mixture B and then subjecting it to secondary ultrafine grinding, and sieving to obtain the peony seed membrane powder; the secondary ultrafine grinding pressure is 0.8-1.2 MPa, and the mixture is sieved through a 1200-1500 mesh sieve.

[0012] The present invention obtains peony seed membrane powder with "particle size D50 of 1-3 μm, bulk density of 0.15-0.25 g / mL, oil content of 0.05-0.15%, and crude fiber content of 7.0-7.5%" through the production process of steam explosion-supercritical carbon dioxide extraction-primary ultrafine grinding-high-pressure micro jet homogenization-freeze drying-secondary ultrafine grinding. After the combined treatment of the above processes, firstly, the molecular conformation of the peony seed meal powder is improved, and the obtained peony seed membrane powder has an ultrafine particle size and a loose porous structure, fine powder quality, and breathable and smooth skin feel; secondly, the obtained peony seed membrane powder has ultra-low oil content and lasting water retention; thirdly, the obtained peony seed membrane powder increases the dissolution rate of active substances such as soluble protein and peony polyphenols, and has better anti-inflammatory, soothing, and antioxidant and brightening effects.

[0013] Preferably, in S1, the steam explosion pressure is 0.5-2.0 MPa, and the steam explosion time is 10-90 s; during the supercritical carbon dioxide extraction, the ratio of the mass of the peony seed meal to the volume of the supercritical gas is 200-300 g: 0.4-1.0 L; further preferably, the steam explosion pressure is 1-1.5 MPa, and the steam explosion time is 30-40 s; the ratio of the mass of the peony seed meal to the volume of the supercritical gas is 250-280 g: 0.8-0.9 L.

[0014] Preferably, in S1, supercritical carbon dioxide is extracted until solid and liquid are completely separated.

[0015] Preferably, in S1, the temperature of supercritical carbon dioxide extraction is 28-50°C, the flow rate is 25-50 L / min, and the pressure is 25-50 MPa.

[0016] Preferably, in S2, the solid-liquid ratio of the peony seed meal powder after the first ultrafine grinding to deionized water is 1:2-10, the pressure of the high-pressure micro-jet homogenization treatment is 100-300 MPa, and the time of the high-pressure micro-jet homogenization treatment is 1-15 min;

[0017] Further preferably, the pressure of the first ultrafine grinding is 0.6-0.7MPa, and the powder passes through a 280-320 mesh sieve; the solid-liquid ratio of the peony seed meal powder after the first ultrafine grinding to deionized water is 1:5-7, the pressure of the high-pressure microjet homogenization treatment is 200-250MPa, and the time of the high-pressure microjet homogenization treatment is 5-10min.

[0018] Preferably, in S3, the specific freeze-drying process is as follows: the first stage: -80°C pre-freezing for 8-24h; the second stage: -50°C to -60°C, vacuum freeze-drying for 12-48h.

[0019] The inventors found in the actual experimental process that the production process of steam explosion-supercritical carbon dioxide extraction-primary ultrafine grinding-high-pressure microjet homogenization-freeze drying-secondary ultrafine grinding has a great influence on the quality of the prepared peony seed membrane powder. If one of the steps is missing or replaced, the quality of the peony seed membrane powder will be greatly affected.

[0020] The inventors found in the actual experimental process that the selection of parameters in the process of steam explosion-supercritical carbon dioxide extraction-primary ultrafine grinding-high-pressure microjet homogenization-freeze drying-secondary ultrafine grinding is very critical. When the parameter range is not within the specific selection of the present invention, the quality of the peony seed membrane powder is greatly affected.

[0021] In addition, the present invention provides application of the peony seed membrane powder in preparing cosmetics.

[0022] Furthermore, the present invention provides a mud mask, comprising the following components in parts by weight: 0.5-50 parts of the peony seed mask powder, 1-30 parts of matrix auxiliary materials, 0.5-5 parts of thickeners, 1-10 parts of moisturizers, and 0.2-1 parts of preservatives.

[0023] Preferably, the mud film comprises at least one of the following (a)-(d):

[0024] (a) the matrix auxiliary material is at least one of sea mud, river mud, glacial mud, titanium dioxide, volcanic mud, kaolin, diatomaceous earth, Canadian bentonite, bentonite and montmorillonite;

[0025] (b) the thickener is at least one of sodium stearate, xanthan gum, carbomer, magnesium aluminum silicate, hydroxypropyl starch phosphate, and hydroxyethyl cellulose;

[0026] (c) the humectant is at least one of glycerol, diglycerol, butylene glycol, dipropylene glycol, polyglycerol-6, and polyglycerol-10;

[0027] (d) The preservative is at least one of p-hydroxyacetophenone, phenoxyethanol, caprylhydroxamic acid, pentylene glycol and 1,2-hexanediol.

[0028] The present invention provides a method for preparing the mud film, comprising the following steps:

[0029] (1) dispersing peony seed film powder in a moisturizer and stirring uniformly to obtain a mixture 1;

[0030] (2) Add water to an emulsifier, add thickener under stirring, homogenize and heat to 75-80°C;

[0031] (3) Add the matrix excipients and preservatives into the emulsifying pot, stir and homogenize;

[0032] (4) stirring the emulsifying pot and cooling it to below 45° C., adding the peony seed membrane powder and moisturizer into the emulsifying pot and stirring evenly;

[0033] (5) Stir and cool to below 30°C, then discharge the material.

[0034] Compared with the prior art, the beneficial effects of the present invention are as follows: the present invention obtains "the peony seed membrane powder having a particle size D50 of 1-3 μm, a bulk density of 0.15-0.25 g / mL, a fat content of 0.05-0.15%, and a crude fiber content of 7.0-7.5%" through a production process of steam explosion-supercritical carbon dioxide extraction-primary ultrafine grinding-high-pressure microjet homogenization-freeze drying-secondary ultrafine grinding. After the combined treatment of the above processes, firstly, the molecular conformation of the peony seed meal powder is improved, and the obtained peony seed membrane powder has an ultrafine particle size and a loose porous structure, a fine powder texture, and a breathable and smooth skin feel; secondly, the obtained peony seed membrane powder has an ultra-low fat content and lasting water retention; thirdly, the obtained peony seed membrane powder increases the dissolution rate of active substances such as soluble protein and peony polyphenols, and has better anti-inflammatory, soothing, and antioxidant and brightening effects.

[0035] After the peony seed mask powder provided by the present invention is further used in preparing a mud mask, the thickness and stickiness of the mask can be significantly improved. The obtained product has a moist texture, is not thick, is easy to apply, and is easy to clean. Its comprehensive performance is far superior to mud masks made from similar products such as existing talcum powder or camellia seed meal powder. DETAILED DESCRIPTION

[0036] In order to better illustrate the purpose, technical scheme and advantages of the present invention, the present invention will be further described below in conjunction with specific embodiments. Its purpose is to understand the content of the present invention in detail, rather than to limit the present invention. All other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention. Unless otherwise specified, the experimental reagents and instruments designed for the implementation and comparative examples of the present invention are all commonly used ordinary reagents and instruments, which can be obtained from commercial channels. In the implementation and comparative examples, the experimental methods used are conventional methods unless otherwise specified; and unless otherwise specified, the raw materials used in parallel experiments are the same batch of raw materials.

[0037] The peony seed meal powder selected in the actual experiment process of the present invention was purchased from Hunan Heguang Biotechnology Co., Ltd., with a mesh size of 30.

[0038] Examples 1-10 and Comparative Examples 1-9

[0039] Example 1

[0040] A method for preparing peony seed film powder comprises the following steps:

[0041] S1. After steam explosion of 500 g of peony seed meal powder after oil extraction, supercritical carbon dioxide extraction is performed, the extraction device is heated to 38 ° C, pressurized to 40 MPa, and extracted at a flow rate of 30 L / h until the solid and liquid are completely separated to obtain a mixture A; the steam explosion pressure is 1 MPa, and the steam explosion time is 40 s; during the supercritical carbon dioxide extraction, the ratio of the mass of the peony seed meal to the volume of the supercritical gas is 250 g: 0.8 L;

[0042] S2, the de-oiled peony seed meal powder is subjected to a superfine grinding, and after sieving, a high-pressure micro-jet homogenization treatment is performed to obtain a mixture B; the pressure of the superfine grinding is 0.6MPa, and the mixture is sieved through a 300-mesh sieve; the solid-liquid ratio of the peony seed meal powder after the superfine grinding and deionized water is 1:5, the pressure of the high-pressure micro-jet homogenization treatment is 200MPa, and the time of the high-pressure micro-jet homogenization treatment is 10min;

[0043] S3. After freeze-drying the mixture B, perform secondary ultrafine grinding, and obtain the peony seed membrane powder after sieving; the specific process of freeze-drying is as follows: the first stage: pre-freezing at -80°C for 12h; the second stage: -55°C, vacuum freeze drying for 24h; the pressure of the secondary ultrafine grinding is 1MPa, and the mixture is sieved through a 1200-mesh sieve.

[0044] Example 2

[0045] A method for preparing peony seed film powder comprises the following steps:

[0046] S1. After steam explosion of 500 g of peony seed meal powder after oil extraction, supercritical carbon dioxide extraction was performed, the extraction device was heated to 38 ° C, pressurized to 40 MPa, and extracted at a flow rate of 30 L / h until the solid and liquid were completely separated to obtain a mixture A; the pressure of the steam explosion was 1.5 MPa, and the steam explosion time was 30 s; during the supercritical carbon dioxide extraction, the ratio of the mass of the peony seed meal to the volume of the supercritical gas was 280 g: 0.9 L;

[0047] S2, the de-oiled peony seed meal powder is subjected to a superfine grinding, and after sieving, a high-pressure micro-jet homogenization treatment is performed to obtain a mixture B; the pressure of the superfine grinding is 0.7MPa, and the mixture is sieved through a 300-mesh sieve; the solid-liquid ratio of the peony seed meal powder after the superfine grinding and deionized water is 1:7, the pressure of the high-pressure micro-jet homogenization treatment is 250MPa, and the time of the high-pressure micro-jet homogenization treatment is 5min;

[0048] S3. After freeze-drying the mixture B, perform secondary ultrafine grinding, and obtain the peony seed membrane powder after sieving; the specific process of freeze-drying is as follows: the first stage: pre-freezing at -80°C for 24 hours; the second stage: -55°C, vacuum freeze drying for 48 hours; the pressure of the secondary ultrafine grinding is 1.2MPa, and the mixture is sieved through a 1500-mesh sieve.

[0049] Example 3

[0050] A method for preparing peony seed membrane powder, compared with Example 1, only the pressure and time of steam explosion in S1 are different, the pressure of steam explosion is 0.5MPa, and the time of steam explosion is 90s; the other components, weight parts and preparation methods are exactly the same.

[0051] Example 4

[0052] A method for preparing peony seed membrane powder, compared with Example 1, only the pressure and time of steam explosion in S1 are different, the pressure of steam explosion is 2MPa, and the time of steam explosion is 10s; the other components, weight parts and preparation methods are exactly the same.

[0053] Example 5

[0054] A method for preparing peony seed film powder, compared with Example 1, only the ratio of the mass of the peony seed meal to the volume of the supercritical gas in S1 is different, that is, the ratio of the mass of the peony seed meal to the volume of the supercritical gas is 200g:0.4L; the other components, weight parts and preparation methods are exactly the same.

[0055] Example 6

[0056] A method for preparing peony seed film powder, compared with Example 1, only the ratio of the mass of the peony seed meal to the volume of the supercritical gas in S1 is different, that is, the ratio of the mass of the peony seed meal to the volume of the supercritical gas is 300g:1.0L; the other components, weight parts and preparation methods are exactly the same.

[0057] Example 7

[0058] A method for preparing peony seed membrane powder, compared with Example 1, only the pressure and sieve mesh number of the first ultrafine grinding in S2 are different, the pressure of the first ultrafine grinding is 0.5MPa, and the sieve is 250 mesh; the other components, weight parts and preparation methods are exactly the same.

[0059] Example 8

[0060] A method for preparing peony seed membrane powder, compared with Example 1, only the pressure and sieve mesh number of the first ultrafine grinding in S2 are different, the pressure of the first ultrafine grinding is 0.8MPa, and the sieve is 350 mesh; the other components, weight parts and preparation methods are exactly the same.

[0061] Example 9

[0062] A method for preparing peony seed membrane powder. Compared with Example 1, only the pressure and time of the high-pressure microjet homogenization treatment in S2 are different. The pressure of the high-pressure microjet homogenization treatment is 100 MPa, and the time of the high-pressure microjet homogenization treatment is 15 min; the remaining components, weight portions and preparation methods are exactly the same.

[0063] Example 10

[0064] A method for preparing peony seed membrane powder. Compared with Example 1, only the pressure and time of the high-pressure microjet homogenization treatment in S2 are different. The pressure of the high-pressure microjet homogenization treatment is 300MPa, and the time of the high-pressure microjet homogenization treatment is 1min; the remaining components, weight portions and preparation methods are exactly the same.

[0065] Comparative Example 1

[0066] A method for preparing peony seed membrane powder, compared with Example 1, only steam explosion is not performed, and the other components, weight parts and preparation methods are completely the same.

[0067] The details are as follows:

[0068] A method for preparing peony seed film powder comprises the following steps:

[0069] S1. 500 g of peony seed meal powder after oil extraction is subjected to supercritical carbon dioxide extraction, heated to 38 ° C in an extraction device, pressurized to 40 MPa, and extracted at a flow rate of 30 L / h until the solid and liquid are completely separated to obtain a mixture A; during the supercritical carbon dioxide extraction, the ratio of the mass of the peony seed meal to the volume of the supercritical gas is 250 g: 0.8 L;

[0070] S2, the de-oiled peony seed meal powder is subjected to a superfine grinding, and after sieving, a high-pressure micro-jet homogenization treatment is performed to obtain a mixture B; the pressure of the superfine grinding is 0.6MPa, and the mixture is sieved through a 300-mesh sieve; the solid-liquid ratio of the peony seed meal powder after the superfine grinding and deionized water is 1:5, the pressure of the high-pressure micro-jet homogenization treatment is 200MPa, and the time of the high-pressure micro-jet homogenization treatment is 10min;

[0071] S3. After freeze-drying the mixture B, perform secondary ultrafine grinding, and obtain the peony seed membrane powder after sieving; the specific process of freeze-drying is as follows: the first stage: pre-freezing at -80°C for 12h; the second stage: -55°C, vacuum freeze drying for 24h; the pressure of the secondary ultrafine grinding is 1MPa, and the mixture is sieved through a 1200-mesh sieve.

[0072] Comparative Example 2

[0073] A method for preparing peony seed membrane powder, compared with Example 1, only supercritical carbon dioxide extraction is not performed, and the other components, weight parts and preparation methods are exactly the same.

[0074] The details are as follows:

[0075] A method for preparing peony seed film powder comprises the following steps:

[0076] S1. Steam explosion was performed on 500 g of peony seed meal powder after oil extraction to obtain a mixture A; the pressure of the steam explosion was 1 MPa, and the time of the steam explosion was 40 s; during the supercritical carbon dioxide extraction, the ratio of the mass of the peony seed meal to the volume of the supercritical gas was 250 g:0.8 L;

[0077] S2, the de-oiled peony seed meal powder is subjected to a superfine grinding, and after sieving, a high-pressure micro-jet homogenization treatment is performed to obtain a mixture B; the pressure of the superfine grinding is 0.6MPa, and the mixture is sieved through a 300-mesh sieve; the solid-liquid ratio of the peony seed meal powder after the superfine grinding and deionized water is 1:5, the pressure of the high-pressure micro-jet homogenization treatment is 200MPa, and the time of the high-pressure micro-jet homogenization treatment is 10min;

[0078] S3. After freeze-drying the mixture B, perform secondary ultrafine grinding, and obtain the peony seed membrane powder after sieving; the specific process of freeze-drying is as follows: the first stage: pre-freezing at -80°C for 12h; the second stage: -55°C, vacuum freeze drying for 24h; the pressure of the secondary ultrafine grinding is 1MPa, and the mixture is sieved through a 1200-mesh sieve.

[0079] Comparative Example 3

[0080] A method for preparing peony seed membrane powder, compared with Example 1, only the ultrafine grinding is not performed once, and the other components, weight parts and preparation methods are exactly the same.

[0081] The details are as follows:

[0082] A method for preparing peony seed film powder comprises the following steps:

[0083] S1. After steam explosion of 500 g of peony seed meal powder after oil extraction, supercritical carbon dioxide extraction is performed, the extraction device is heated to 38 ° C, pressurized to 40 MPa, and extracted at a flow rate of 30 L / h until the solid and liquid are completely separated to obtain a mixture A; the steam explosion pressure is 1 MPa, and the steam explosion time is 40 s; during the supercritical carbon dioxide extraction, the ratio of the mass of the peony seed meal to the volume of the supercritical gas is 250 g: 0.8 L;

[0084] S2, subjecting the de-oiled peony seed meal to high-pressure microfluidization homogenization to obtain a mixture B; the solid-liquid ratio of the peony seed meal to deionized water is 1:5, the pressure of the high-pressure microfluidization homogenization is 200 MPa, and the time of the high-pressure microfluidization homogenization is 10 min;

[0085] S3. After freeze-drying the mixture B, ultrafine grinding is performed, and the peony seed membrane powder is obtained after sieving. The specific process of freeze-drying is as follows: the first stage: pre-freezing at -80°C for 12 hours; the second stage: -55°C, vacuum freeze drying for 24 hours; the ultrafine grinding pressure is 1 MPa, and the mixture is sieved through a 1200 mesh sieve.

[0086] Comparative Example 4

[0087] A method for preparing peony seed membrane powder, compared with Example 1, only the high-pressure microfluidization homogenization treatment is not performed, and the other components, weight parts and preparation methods are exactly the same.

[0088] The details are as follows:

[0089] A method for preparing peony seed film powder comprises the following steps:

[0090] S1. After steam explosion of 500 g of peony seed meal powder after oil extraction, supercritical carbon dioxide extraction is performed, the extraction device is heated to 38 ° C, pressurized to 40 MPa, and extracted at a flow rate of 30 L / h until the solid and liquid are completely separated to obtain a mixture A; the steam explosion pressure is 1 MPa, and the steam explosion time is 40 s; during the supercritical carbon dioxide extraction, the ratio of the mass of the peony seed meal to the volume of the supercritical gas is 250 g: 0.8 L;

[0091] S2, the de-oiled peony seed meal powder is subjected to a superfine grinding, and a mixture B is obtained after sieving; the pressure of the superfine grinding is 0.6MPa, and the mixture is sieved through a 300 mesh sieve;

[0092] S3. After freeze-drying the mixture B, perform secondary ultrafine grinding, and obtain the peony seed membrane powder after sieving; the specific process of freeze-drying is as follows: the first stage: pre-freezing at -80°C for 12h; the second stage: -55°C, vacuum freeze drying for 24h; the pressure of the secondary ultrafine grinding is 1MPa, and the mixture is sieved through a 1200-mesh sieve.

[0093] Comparative Example 5

[0094] A method for preparing peony seed film powder, compared with Example 1, only the high-pressure microjet pressure is 50MPa; the other components, weight parts and preparation methods are exactly the same.

[0095] Comparative Example 6

[0096] A method for preparing peony seed film powder, compared with Example 1, only the high-pressure microjet pressure is 600MPa; the other components, weight parts and preparation methods are exactly the same.

[0097] Comparative Example 7

[0098] A method for preparing peony seed membrane powder, compared with Example 1, only the mesh number of the secondary ultrafine grinding and sieving is different, and the secondary ultrafine grinding passes through an 800-mesh sieve; the other components, weight parts and preparation methods are exactly the same.

[0099] Comparative Example 8

[0100] A method for preparing peony seed membrane powder, compared with Example 1, only the mesh number of the secondary ultrafine grinding and sieving is different, and the secondary ultrafine grinding passes through a 2000-mesh sieve; the other components, weight parts and preparation methods are exactly the same.

[0101] Comparative Example 9

[0102] A method for preparing peony superfine powder, the preparation method comprising the following steps:

[0103] (1) 500 g of peony seed meal after oil extraction was placed in an extraction device filled with 1 L of supercritical carbon dioxide, heated to 38° C., pressurized to 40 MPa, and extracted at a flow rate of 30 L / h until the solid and liquid were completely separated and no liquid flowed out, thereby obtaining an extracted solid A;

[0104] (2) The extracted solid A was washed with cold water for 5 times, the residue was filtered, and vacuum dried to obtain an extracted solid B; the water content of the extracted solid B was 5 wt%;

[0105] (3) The extracted solid B was crushed in a universal grinder at a speed of 30,000 r / min for 6 min and passed through a 200-mesh sieve to obtain a fine powder;

[0106] (4) The fine powder was subjected to airflow superfine grinding in an airflow superfine grinding machine under a grinding pressure of 0.8 MPa, a feed pressure of 0.5 MPa, and ground three times, and passed through an 800-mesh sieve to obtain the peony seed superfine powder.

[0107] Application Examples

[0108] The present invention provides a mud mask, the components (mass percentage) of the mud mask are shown in Table 1; the peony seed film powder used in Application Example 1 and Application Example 2 is the peony seed film powder prepared in Example 1; the peony seed film powder used in Comparative Application Examples 1-9 is the peony seed film powder prepared in Comparative Examples 1-9 respectively.

[0109] Table 1

[0110]

[0111] The method for preparing the mud film provided in Application Example 1 comprises the following steps:

[0112] (1) dispersing peony seed film powder in a moisturizer and stirring uniformly to obtain a mixture 1;

[0113] (2) Add water to an emulsifier, add thickener under stirring, homogenize and heat to 75-80°C;

[0114] (3) Add the matrix excipients and preservatives into the emulsifying pot, stir and homogenize;

[0115] (4) stirring the emulsifying pot and cooling it to below 45° C., adding the peony seed membrane powder and moisturizer into the emulsifying pot and stirring evenly;

[0116] (5) Stir and cool to below 30°C, then discharge the material.

[0117] The preparation methods of the remaining application examples and comparative application examples are the same as that of application example 1, except that no relevant components are added if they are not present.

[0118] Performance test-1 Peony seed film powder test

[0119] The peony seed film powder prepared in the embodiment and the comparative example was tested for particle size D50, bulk density, crude oil content, and crude fiber content, as follows:

[0120] Particle size test: Take 1g of peony seed membrane powder and disperse it in 300mL of deionized water to prepare a solution. Shake and sonicate 3 times, each time for 5 minutes. After each sonication, test it 3 times and take the average value of the three test data.

[0121] Bulk density test: Take the peony seed membrane powder and slowly slide it into a 10mL measuring cylinder until the powder fills the measuring cylinder scale. The bulk density is expressed as the mass of 10mL powder. The calculation formula of bulk density is: bulk density (g / mL) = m / V, where m is the mass of the powder; V is the volume of the powder.

[0122] Determination of crude fat content: Determine according to the method in GB / 5009.6-2016 “National Food Safety Standard - Determination of Fat in Foods”.

[0123] Crude fiber content determination: Determine according to the method of GB / T 5515-2008 “Inspection of grains and oils - Determination of crude fiber content in grains”.

[0124] The test results are shown in Table 2.

[0125] Table 2

[0126]

[0127] The embodiment of the present invention adopts the production process of steam explosion-supercritical carbon dioxide extraction-primary ultrafine grinding-high-pressure micro jet homogenization-freeze drying-secondary ultrafine grinding to prepare the peony seed film powder with a particle size D50 of 1-3 μm, a bulk density of 0.15-0.25 g / mL, a fat content of 0.05-0.15%, and a crude fiber content of 7.0-7.5%.

[0128] Performance Test-2 Antioxidant and Anti-Inflammatory Test

[0129] Antioxidant test: 24 48-hour-old zebrafish embryos were exposed to a 1g / L sample solution prepared with fish embryo culture medium, and a blank control group (fish embryo culture medium) was set up at the same time. After 24 hours of exposure, the fish embryos were stained with H2DCFDA, and the ROS signal intensity was measured by fluorescence photography and statistical analysis. The test compared the changes in ROS levels in the fish embryos of the treatment group and the blank control group, and calculated the ROS clearance rate.

[0130] Preparation of fish embryo culture medium: weigh 2940 mg of anhydrous calcium chloride, 1233 mg of magnesium sulfate heptahydrate, 630 mg of sodium bicarbonate, and 55 mg of potassium chloride and dissolve them in 10 L of water to prepare a pH value of 6.5-8.5.

[0131] Anti-inflammatory test: 24 3-day-old fish embryos were exposed to 10 μM anhydrous copper sulfate and 1 g / L sample solution prepared with fish embryo culture medium. A model control group was also set up. After 40 min of exposure, the fish embryos were fixed and stained with Sudan black. The number of neutrophils in the lateral line area was counted and statistically analyzed.

[0132] Model group: fish embryo culture medium containing 10 μM anhydrous copper sulfate.

[0133] The test results are shown in Table 3.

[0134] Table 3

[0135]

[0136]

[0137] It can be seen from the above table that the peony seed membrane powder prepared by the present invention through the combined processing of steam explosion-supercritical carbon dioxide extraction-primary ultrafine grinding-high-pressure microjet homogenization-freeze drying-secondary ultrafine grinding has excellent antioxidant and anti-inflammatory properties.

[0138] Performance test-3 breathability, lightness, smoothness, and brightening effect test

[0139] Healthy subjects aged 20-55 years with no history of skin diseases and allergies were recruited and randomly divided into 12 groups, with 10 people in each group. Clean the skin, take an appropriate amount of mud mask sample, apply it evenly on the skin, use it for 15 minutes, and then wash it with clean water to evaluate the breathability, lightness, smoothness and skin brightening effect of the mud mask sample on the skin during use.

[0140] Each indicator of breathability, lightness, smoothness, and brightening effect is scored between 1 and 5, and the average value is used as the test result. The higher the score, the better the effect.

[0141] The scoring criteria are shown in Table 4, and the test results are shown in Table 5.

[0142] Table 4

[0143]

[0144] Table 5

[0145]

[0146]

[0147] It can be seen from the above table that the peony seed membrane powder prepared by the present invention through the combined processing of steam explosion-supercritical carbon dioxide extraction-primary ultrafine grinding-high-pressure microjet homogenization-freeze drying-secondary ultrafine grinding production process is applied to mud membrane, and the air permeability, lightness, smoothness and brightening effect are significantly improved.

[0148] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention rather than to limit the scope of protection of the present invention. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solution of the present invention can be modified or replaced by equivalents without departing from the essence and scope of the technical solution of the present invention.

Claims

1. A peony seed film powder, characterized in that: The peony seed membrane powder has a particle size D50 of 1-3 μm, a bulk density of 0.15-0.25 g / mL, a fat content of 0.05-0.15%, and a crude fiber content of 7.0-7.5%.

2. A method for preparing peony seed film powder as claimed in claim 1, characterized in that: The following steps are involved: S1, steam-exploding peony seed meal powder, and then extracting it with supercritical carbon dioxide to obtain a mixture A; S2, the de-oiled peony seed meal powder is subjected to a superfine grinding, and after sieving, a high-pressure micro-jet homogenization treatment is performed to obtain a mixture B; the pressure of the superfine grinding is 0.5-0.8MPa, and the mixture is sieved through a 250-350 mesh sieve; S3, freeze-drying the mixture B and then subjecting it to secondary ultrafine grinding, and sieving to obtain the peony seed membrane powder; the secondary ultrafine grinding pressure is 0.8-1.2 MPa, and the mixture is sieved through a 1200-1500 mesh sieve.

3. The method for preparing peony seed film powder as claimed in claim 2, characterized in that, In S1, the steam explosion pressure is 0.5-2.0 MPa, and the steam explosion time is 10-90 s; during the supercritical carbon dioxide extraction, the ratio of the mass of the peony seed meal to the volume of the supercritical gas is 200-300 g: 0.4-1.0 L; Preferably, the steam explosion pressure is 1-1.5 MPa, the steam explosion time is 30-40 s; and the ratio of the mass of the peony seed meal to the volume of the supercritical gas is 250-280 g: 0.8-0.9 L.

4. The method for preparing peony seed film powder as claimed in claim 2, characterized in that, In S2, the solid-liquid ratio of the peony seed meal powder after the first ultrafine grinding to deionized water is 1:2-10, the pressure of the high-pressure micro-jet homogenization treatment is 100-300 MPa, and the time of the high-pressure micro-jet homogenization treatment is 1-15 min; Preferably, the pressure of the first ultrafine grinding is 0.6-0.7MPa, and the powder passes through a 280-320 mesh sieve; the solid-liquid ratio of the peony seed meal powder after the first ultrafine grinding to deionized water is 1:5-7, the pressure of the high-pressure microjet homogenization treatment is 200-250MPa, and the time of the high-pressure microjet homogenization treatment is 5-10min.

5. The method for preparing peony seed film powder as claimed in claim 2, characterized in that, In S3, the specific process of freeze drying is as follows: the first stage: -80°C pre-freezing for 8-24h; the second stage: -50°C to -60°C, vacuum freeze drying for 12-48h.

6. Use of the peony seed membrane powder as claimed in claim 1 in preparing cosmetics.

7. A mud film, characterized in that: The composition comprises the following components in parts by weight: 0.5-50 parts of the peony seed film powder as claimed in claim 1, 1-30 parts of matrix auxiliary materials, 0.5-5 parts of thickeners, 1-10 parts of moisturizers, and 0.2-1 parts of preservatives.

8. The mud film according to claim 7, characterized in that: Including at least one of the following (a)-(d): (a) the matrix auxiliary material is at least one of sea mud, river mud, glacial mud, volcanic mud, kaolin, diatomaceous earth, Canadian bentonite, bentonite and montmorillonite; (b) the thickener is at least one of sodium stearate, xanthan gum, carbomer, magnesium aluminum silicate, hydroxypropyl starch phosphate, and hydroxyethyl cellulose; (c) the humectant is at least one of glycerol, diglycerol, butylene glycol, dipropylene glycol, polyglycerol-6, and polyglycerol-10; (d) The preservative is at least one of p-hydroxyacetophenone, phenoxyethanol, caprylhydroxamic acid, pentylene glycol and 1,2-hexanediol.

9. A method for preparing the mud film as claimed in claim 7 or 8, characterized in that: The following steps are involved: (1) dispersing peony seed film powder in a moisturizer and stirring uniformly to obtain a mixture 1; (2) Add water to an emulsifier, add thickener under stirring, homogenize and heat to 75-80°C; (3) Add the matrix excipients and preservatives into the emulsifying pot, stir and homogenize; (4) The emulsifying pot is stirred and cooled to below 45° C., and the peony seed membrane powder and moisturizer are added into the emulsifying pot and stirred evenly; (5) Stir and cool to below 30°C, then discharge the material.

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