Soap with mite-removing and antibacterial effects and preparation method thereof

Abstract

The present invention discloses a soap with mite removal and antibacterial efficacy and a preparation method thereof. The soap comprises the following components by weight: 5-10 parts of a Sargassum fusiformis extract, 3-8 parts of a Magnolia bark extract, 1-5 parts of a Paeonia suffruticosa root bark extract, 2-6 parts of a Sanguisorba officinalis extract, 20-30 parts of olive oil, 10-20 parts of sodium hydroxide, and 15-35 parts of water. By compounding a specific ratio of the Sargassum fusiformis extract, the Magnolia bark extract, the Paeonia suffruticosa root bark extract, and the Sanguisorba officinalis extract, the soap has a good inhibitory effect on Staphylococcus aureus, Escherichia coli, and Bacillus subtilis, thereby reducing bacterial damage to the human body. The soap is supplemented with polyglutamic acid with a relative molecular weight of 400,000-700,000 to improve the problem of the soap being less durable and cracking due to the addition of glycerin.

Description

Technical Field

[0001] The invention belongs to the field of daily chemical products, and in particular relates to a soap with mite-removing and bacteriostatic effects and a preparation method thereof. Background Art

[0002] Soap, with its powerful cleaning abilities and affordable price, has become a necessity. As living standards improve, the variety of soaps is expanding, along with their functionality. To meet diverse consumer needs, soaps with multifunctional properties are emerging. Products with antibacterial, softening, moisturizing, acne-fighting, skin-refreshing, whitening, and long-lasting fragrance properties are highly sought after by consumers.

[0003] Our lives are plagued by numerous pathogenic bacteria and fungi, with the skin being a primary site of infection for these pathogens. Using soaps with antibacterial properties is a good way to prevent infection. Currently, most commercially available soaps contain chemicals such as triclocarban or triclosan. The safety of these chemicals remains to be determined, and long-term use of triclocarban or triclosan as antibacterial agents can easily lead to drug resistance in these bacteria. Some manufacturers also use sodium fatty acids and other surfactants as primary raw materials to produce soaps, then add quality and appearance enhancers before processing and molding them into soaps. However, these soaps generally have a high pH value, making them susceptible to skin damage with long-term use, and are therefore typically used for washing clothes. Therefore, developing a mild soap with antibacterial properties has considerable market value. Summary of the Invention

[0004] To address the shortcomings of the prior art, the present invention aims to provide a soap with mite-removing and antibacterial properties. By combining specific ratios of Sargassum fusiformis extract, Magnolia officinalis extract, Paeonia suffruticosa root bark extract, and Sanguisorba officinalis extract, the soap exhibits excellent inhibitory effects against Staphylococcus aureus, Escherichia coli, and Bacillus subtilis, reducing bacterial damage to the human body. Furthermore, the soap is supplemented with polyglutamic acid (with a relative molecular weight of 400,000 to 700,000), which alleviates the issues of soap durability and cracking caused by the addition of glycerin.

[0005] The object of the present invention is to provide a soap with mite removal and antibacterial effects, comprising the following components in parts by weight: 5-10 parts of Sargassum fusiformis extract, 3-8 parts of Magnolia officinalis extract, 1-5 parts of Paeonia suffruticosa root bark extract, 2-6 parts of Sanguisorba officinalis extract, 20-30 parts of olive oil, 10-20 parts of sodium hydroxide, and 15-35 parts of water.

[0006] Olive oil is rich in squalene and essential fatty acids, which have excellent affinity with the skin. It is quickly absorbed and effectively maintains skin elasticity and moisture. The rich monounsaturated fatty acids and vitamins E, K, A, D, etc. and phenolic antioxidants contained in olive oil can eliminate facial wrinkles, prevent skin aging, and have the effects of skin care, hair care, and preventing and treating chapped hands and feet. It is known as a beauty and skin care product that can be "eaten". However, olive oil contains more unsaturated fatty acids than any other vegetable oil. When used in the preparation of soap, it can easily cause the soap to discolor and become rancid. During the experiment, the inventor unexpectedly discovered that extracts from Sargassum fusiformis, Magnolia bark extract, Paeonia suffruticosa root bark extract, and Sanguisorba officinalis extract can improve the problem of soap discoloration and rancidity caused by the addition of olive oil. The possible reason is that the combination of extracts from Sargassum fusiformis, Magnolia bark extract, Paeonia suffruticosa root bark extract, and Sanguisorba officinalis extract has good antioxidant properties.

[0007] Preferably, the soap with mite removal and antibacterial effects further comprises the following components in parts by weight: 1-5 parts of glycerin and 10-20 parts of polyglutamic acid.

[0008] Glycerin has moisturizing, skin-nourishing, and whitening properties. When applied to the skin's surface, glycerin quickly moisturizes the skin and forms a protective film that locks in moisture. It also promotes skin cell metabolism and reduces skin pigmentation. However, when preparing soap, adding too much glycerin can cause the soap to become less durable and crack. The inventors have addressed this issue by adding polyglutamic acid of a specific molecular weight. The carboxyl groups in the polyglutamic acid molecular structure hydrogen bond with the hydroxyl groups in glycerol, and the polyglutamic acid is highly stretched in the glycerol, entwining and connecting to form a continuous network structure. Glycerol bonds with the network through polar bonds and hydrogen bonds, thus improving the soap's durability and cracking caused by the addition of glycerol.

[0009] Preferably, the relative molecular weight of the polyglutamic acid is 400,000-700,000.

[0010] The molecular weight of polyglutamic acid is too small, the interaction force with glycerol is small, and it cannot form a good network structure, which cannot effectively improve the problem of soap being not durable and cracking caused by the addition of glycerol; the molecular weight of polyglutamic acid is too large, and the polyglutamic acids are entangled and connected with each other to form a continuous network structure that is too dense. The carboxyl groups in the molecular chain are wrapped in the network structure and cannot contact well with glycerol, resulting in an inability to effectively solve the problem of soap being not durable and cracking caused by the addition of glycerol.

[0011] Preferably, the extraction process of the Sargassum fusiformis extract is as follows:

[0012] The dried and crushed Sargassum fusiformis is extracted with a solvent under reflux, centrifuged, and the supernatant is concentrated to obtain the Sargassum fusiformis extract.

[0013] Preferably, the solvent is selected from at least one of ethanol, methanol and water.

[0014] Preferably, the extraction process of the Magnolia Bark Extract is as follows:

[0015] The dried and crushed Magnolia officinalis is extracted with a solvent under reflux, centrifuged, and the supernatant is concentrated to obtain the Magnolia officinalis extract.

[0016] Preferably, the solvent is selected from at least one of water and ethanol.

[0017] Preferably, the extraction process of the peony root bark extract is as follows:

[0018] The dried and crushed peony root bark is subjected to reflux extraction with a solvent, centrifuged, and the supernatant is concentrated to obtain the peony root bark extract.

[0019] Preferably, the solvent is selected from n-hexane or petroleum ether.

[0020] Preferably, the extraction process of the Sanguisorba officinalis extract is as follows:

[0021] The dried and crushed raw Sanguisorba officinalis is extracted with a solvent under reflux, centrifuged, and the supernatant is concentrated to obtain the raw Sanguisorba officinalis extract.

[0022] Preferably, the solvent is selected from at least one of water and ethanol.

[0023] Another object of the present invention is to provide a method for preparing the soap having mite removal and antibacterial effects, comprising the following steps:

[0024] S1. Sodium hydroxide and water were mixed, heated to 60-80 ℃, and Sargassum fusiformis extract, Magnolia bark extract, Paeonia suffruticosa root bark extract, Sanguisorba officinalis extract, and olive oil were added and stirred to obtain a mixture A;

[0025] S2. The glycerol and polyglutamic acid were mixed and stirred to obtain a mixture B;

[0026] S3. Add mixture B to mixture A and stir to obtain a mixed soap solution;

[0027] S4. Pour the mixed soap solution into a mold, seal it, let it stand, demould it, and dry it to obtain a soap with mite-removing and antibacterial effects.

[0028] Preferably, in S1, the stirring time is 0.5-1 hour.

[0029] Preferably, in S2, the stirring temperature is 50-60°C and the stirring time is 10-20 minutes.

[0030] Preferably, in S3, the stirring temperature is 40-50°C and the stirring time is 20-30 minutes.

[0031] Preferably, in S4, the sealing temperature is 30-40°C and the sealing time is 20-30 minutes.

[0032] Preferably, in S4, the drying temperature is 40-50° C. and the drying time is 5-8 hours. DETAILED DESCRIPTION

[0033] In order to enable those skilled in the art to better understand the technical solutions of the present invention, the technical solutions of the present invention will be clearly and completely described below in conjunction with the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts should fall within the scope of protection of the present invention.

[0034] Example 1: Extraction of Sargassum fusiformis extract.

[0035] 100 kg of dried Sargassum fusiformis was crushed with a traditional Chinese medicine grinder, passed through an 80-100 mesh sieve, added with 800 mL of anhydrous ethanol, heated and refluxed for 2-3 hours, cooled, centrifuged for 15 minutes, filtered to remove insoluble matter, added activated carbon to the filtrate for decolorization, filtered to remove the activated carbon, centrifuged, and concentrated the supernatant to obtain the Sargassum fusiformis extract, which was stored in the dark.

[0036] Example 2: Extraction of Magnolia Bark Extract.

[0037] 100 kg of dried Magnolia officinalis was crushed with a traditional Chinese medicine grinder, passed through a 40-50 mesh sieve, added with 1000 mL of anhydrous ethanol, and extracted under reflux at elevated temperature for 1-1.5 hours. After cooling, the extract was filtered, the filtrate was combined, and concentrated under reduced pressure to obtain the Magnolia officinalis extract, which was stored in the dark.

[0038] Example 3: Extraction of Paeonia suffruticosa Root Bark Extract.

[0039] 50 kg of dried peony root bark was crushed with a traditional Chinese medicine grinder, passed through an 80-100 mesh sieve, added with 500 mL of n-hexane, and refluxed at 70-80° C. for 24 h. After extraction, the extract was filtered and concentrated under reduced pressure on a rotary evaporator to obtain the peony root bark extract, which was stored in the dark.

[0040] Example 4: Extraction of Sanguisorba officinalis extract.

[0041] 50 kg of dried Sanguisorba officinalis was crushed with a traditional Chinese medicine grinder, passed through a 40-50 mesh sieve, added with 500 mL of water, heated and refluxed for extraction for 1-1.5 hours, cooled, filtered, the filtrate was combined, and concentrated under reduced pressure to obtain the Sanguisorba officinalis extract, which was stored in the dark.

[0042] Example 5: Preparation of soap.

[0043] S1. 20 parts by mass of sodium hydroxide and 15 parts by mass of water were mixed, heated to 60-80 ℃, 5 parts by mass of Sargassum fusiformis extract, 8 parts by mass of Magnolia bark extract, 1 part by mass of Paeonia suffruticosa root bark extract, 6 parts by mass of Sanguisorba officinalis extract, 26 parts by mass of olive oil were stirred for 0.5-1 hour to obtain a mixture A;

[0044] S2. 3 parts by mass of glycerol and 20 parts by mass of polyglutamic acid having a relative molecular weight of 400,000 were mixed and stirred at 50-60°C for 10-20min to obtain a mixture B;

[0045] S3. Add mixture B to mixture A and stir at 40-50°C for 20-30 min to obtain a mixed soap solution;

[0046] S4. Pour the mixed soap solution into a mold, seal it at 30-40°C for 20-30 minutes, let it stand, demould it, and dry it at 40-50°C for 5-8 hours to obtain a soap with mite removal and antibacterial effects.

[0047] Example 6: Preparation of soap.

[0048] S1. 10 parts by mass of sodium hydroxide and 29 parts by mass of water were mixed, heated to 60-80 ℃, 10 parts by mass of Sargassum fusiformis extract, 3 parts by mass of Magnolia bark extract, 5 parts by mass of Paeonia suffruticosa root bark extract, 2 parts by mass of Sanguisorba officinalis extract, 30 parts by mass of olive oil were stirred for 0.5-1 hour to obtain a mixture A;

[0049] S2. 5 parts by mass of glycerol and 10 parts by mass of polyglutamic acid having a relative molecular weight of 700,000 were mixed and stirred at 50-60 ° C for 10-20 min to obtain a mixture B;

[0050] S3. Add mixture B to mixture A and stir at 40-50°C for 20-30 min to obtain a mixed soap solution;

[0051] S4. Pour the mixed soap solution into a mold, seal it at 30-40°C for 20-30 minutes, let it stand, demould it, and dry it at 40-50°C for 5-8 hours to obtain a soap with mite removal and antibacterial effects.

[0052] Example 7: Preparation of soap.

[0053] S1. 15 parts by mass of sodium hydroxide and 35 parts by mass of water were mixed, heated to 60-80 ℃, 7 parts by mass of Sargassum fusiformis extract, 6 parts by mass of Magnolia bark extract, 3 parts by mass of Paeonia suffruticosa root bark extract, 4 parts by mass of Sanguisorba officinalis extract, 20 parts by mass of olive oil were stirred for 0.5-1 hour to obtain a mixture A;

[0054] S2. 1 part by mass of glycerol and 13 parts by mass of polyglutamic acid having a relative molecular weight of 400,000 were mixed and stirred at 50-60°C for 10-20min to obtain a mixture B;

[0055] S3. Add mixture B to mixture A and stir at 40-50°C for 20-30 min to obtain a mixed soap solution;

[0056] S4. Pour the mixed soap solution into a mold, seal it at 30-40°C for 20-30 minutes, let it stand, demould it, and dry it at 40-50°C for 5-8 hours to obtain a soap with mite removal and antibacterial effects.

[0057] Comparative Example 1: Preparation of soap.

[0058] S1. 15 parts by mass of sodium hydroxide and 35 parts by mass of water were mixed, heated to 60-80 ℃, 20 parts by mass of Hijiki extract and 20 parts by mass of olive oil were added and stirred for 0.5-1 hour to obtain a mixture A;

[0059] S2. 1 part by mass of glycerol and 13 parts by mass of polyglutamic acid having a relative molecular weight of 400,000 were mixed and stirred at 50-60°C for 10-20min to obtain a mixture B;

[0060] S3. Add mixture B to mixture A and stir at 40-50°C for 20-30 min to obtain a mixed soap solution;

[0061] S4. Pour the mixed soap solution into a mold, seal it at 30-40°C for 20-30 minutes, let it stand, demould it, and dry it at 40-50°C for 5-8 hours to obtain a soap with mite removal and antibacterial effects.

[0062] Comparative Example 2: Preparation of soap.

[0063] S1. 15 parts by mass of sodium hydroxide and 35 parts by mass of water were mixed, heated to 60-80 ℃, 20 parts by mass of Magnolia bark extract and 20 parts by mass of olive oil were added and stirred for 0.5-1 hour to obtain a mixture A;

[0064] S2. 1 part by mass of glycerol and 13 parts by mass of polyglutamic acid having a relative molecular weight of 400,000 were mixed and stirred at 50-60°C for 10-20min to obtain a mixture B;

[0065] S3. Add mixture B to mixture A and stir at 40-50°C for 20-30 min to obtain a mixed soap solution;

[0066] S4. Pour the mixed soap solution into a mold, seal it at 30-40°C for 20-30 minutes, let it stand, demould it, and dry it at 40-50°C for 5-8 hours to obtain a soap with mite removal and antibacterial effects.

[0067] Comparative Example 3: Preparation of soap.

[0068] S1. 15 parts by mass of sodium hydroxide and 35 parts by mass of water were mixed, heated to 60-80 ℃, 20 parts by mass of peony root bark extract and 20 parts by mass of olive oil were added and stirred for 0.5-1 hour to obtain a mixture A;

[0069] S2. 1 part by mass of glycerol and 13 parts by mass of polyglutamic acid having a relative molecular weight of 400,000 were mixed and stirred at 50-60°C for 10-20min to obtain a mixture B;

[0070] S3. Add mixture B to mixture A and stir at 40-50°C for 20-30 min to obtain a mixed soap solution;

[0071] S4. Pour the mixed soap solution into a mold, seal it at 30-40°C for 20-30 minutes, let it stand, demould it, and dry it at 40-50°C for 5-8 hours to obtain a soap with mite removal and antibacterial effects.

[0072] Comparative Example 4: Preparation of soap.

[0073] S1. 15 parts by mass of sodium hydroxide and 35 parts by mass of water were mixed, heated to 60-80 ℃, 20 parts by mass of raw Sanguisorba officinalis extract and 20 parts by mass of olive oil were added and stirred for 0.5-1 hour to obtain a mixture A;

[0074] S2. 1 part by mass of glycerol and 13 parts by mass of polyglutamic acid having a relative molecular weight of 400,000 were mixed and stirred at 50-60°C for 10-20min to obtain a mixture B;

[0075] S3. Add mixture B to mixture A and stir at 40-50°C for 20-30 min to obtain a mixed soap solution;

[0076] S4. Pour the mixed soap solution into a mold, seal it at 30-40°C for 20-30 minutes, let it stand, demould it, and dry it at 40-50°C for 5-8 hours to obtain a soap with mite removal and antibacterial effects.

[0077] Test Example 1: Inhibition zone test.

[0078] (1) Test strains: Escherichia coli ATCC8099, Staphylococcus aureus ATCC6538, and Bacillus subtilis ATCC55614, all from Guangdong Provincial Microbial Culture Collection Center.

[0079] (2) Preparation of culture medium: Dissolve 10 g of solid nutrient broth culture medium in 500 mL of purified water, sterilize under high pressure at 121°C for 20 min, and set aside.

[0080] (3) Preparation of bacterial suspension: sterilize the test tubes and culture medium at 121°C for 30 min, set aside, add 5 mL of culture medium to each of the three sterilized test tubes, cool the culture medium to below 40°C, use an inoculation loop to take appropriate amounts of Escherichia coli, Staphylococcus aureus, and Bacillus subtilis, place them in the three test tubes, mix them, and culture them in a 37°C incubator for 18-24 h. Use a McFadden turbidimeter to adjust the turbidity of the bacterial suspension to 10 5 CFU / mL, set aside.

[0081] (4) Preparation of test samples: 5 g of each of the soaps prepared in Examples 5-7 was placed in a conical flask, 25 mL of sterile distilled water was added, and the mixture was shaken in a water bath at 45°C until the soap was dissolved to obtain test samples;

[0082] (5) Determination of antibacterial properties: Pipette 100 μL of bacterial suspension into a culture dish containing solid nutrient broth medium and spread it evenly with a cloth. Use sterile tweezers to pick up an Oxford cup and place it on the evenly spread nutrient broth medium, ensuring full contact between the Oxford cup and the medium. Repeat the experiment three times for each bacterial species. After adding 50 μL of the sample to each Oxford cup, place the culture dish in an incubator. Place Staphylococcus aureus, Escherichia coli, and Bacillus subtilis in an incubator at 37°C for 18-24 hours. Observe the size of the inhibition zone and measure its diameter with a ruler.

[0083] Table 1. Inhibition zone test results.

[0084] sample Staphylococcus aureus (mm) Escherichia coli (mm) Bacillus subtilis (mm) Example 5 7 11 6 Example 6 6 12 6 Example 7 7 10 5

[0085] As shown in Table 1, the soaps of Examples 5 to 7 of the present invention have good antibacterial effects on Staphylococcus aureus, Escherichia coli and Bacillus subtilis.

[0086] Test Example 2: Determination of DPPH free radical scavenging rate.

[0087] Weigh 40 mg of DPPH and dissolve it in 1000 mL of methanol to obtain a 0.04 mg / mL DPPH methanol solution. Prepare sample solutions of 0.5 mg / mL with the soaps from Examples 5-7 and Comparative Examples 1-4. Add 2 mL of DPPH methanol solution to 2 mL of each sample solution, incubate in the dark for 30 minutes, and measure absorbance at 517 nm. Use distilled water as a blank in place of the sample, methanol as a sample blank in place of the DPPH methanol solution, and vitamin C as a positive control.

[0088] The scavenging rate of the sample for DPPH free radicals was calculated using the following formula:

[0089] DPPH free radical scavenging rate = [1-(A1-A2) / A0] × 100%;

[0090] Blank A0: absorbance value of 2 mL distilled water + 2 mL DPPH solution;

[0091] Sample A1: absorbance of 2 mL sample solution + 2 mL DPPH solution;

[0092] Sample blank A2: absorbance value of 2 mL sample solution + 2 mL methanol solution.

[0093] Table 2. Test results of DPPH radical scavenging rate of the soaps of Examples 5-7 and Comparative Examples 1-4.

[0094] sample DPPH free radical scavenging rate (%) Example 5 85.4 Example 6 86.3 Example 7 87.8 Comparative Example 1 72.4 Comparative Example 2 59.1 Comparative Example 3 75.9 Comparative Example 4 68.7

[0095] As shown in Table 2, the combination of Sargassum fusiformis extract, Magnolia bark extract, Paeonia suffruticosa root bark extract and Sanguisorba officinalis extract has a synergistic effect on the DPPH free radical scavenging rate and has good antioxidant effect.

[0096] Test Example 3: Determination of accelerated discoloration and spoilage.

[0097] The soaps of Examples 5-7 and Comparative Examples 1-4 were placed in an electric constant temperature incubator at (40±1)°C for 24 hours, and after returning to room temperature, were observed for discoloration, corruption, and other phenomena.

[0098] Table 3. Test results of discoloration and spoilage performance of the soaps of Examples 5-7 and Comparative Examples 1-4.

[0099] sample Discoloration and corruption Example 5 No discoloration or corruption Example 6 No discoloration or corruption Example 7 No discoloration or corruption Comparative Example 1 Slight discoloration and corruption Comparative Example 2 Slight discoloration and corruption Comparative Example 3 Slight discoloration and corruption Comparative Example 4 Slight discoloration and corruption

[0100] As shown in Table 3, the combination of Sargassum fusiformis extract, Magnolia officinalis extract, Paeonia suffruticosa root bark extract and Sanguisorba officinalis extract can effectively solve the problem of oxidative corruption and discoloration of olive oil.

[0101] Comparative Example 5: Preparation of soap.

[0102] S1. 15 parts by mass of sodium hydroxide and 35 parts by mass of water were mixed, heated to 60-80 ℃, 7 parts by mass of Sargassum fusiformis extract, 6 parts by mass of Magnolia bark extract, 3 parts by mass of Paeonia suffruticosa root bark extract, 4 parts by mass of Sanguisorba officinalis extract, 20 parts by mass of olive oil were stirred for 0.5-1 hour to obtain a mixture A;

[0103] S2. 1 part by mass of glycerol was added to the mixture A and stirred at 40-50 ° C for 20-30 min to obtain a mixed soap solution;

[0104] S3. Pour the mixed soap solution into a mold, seal it at 30-40°C for 20-30 minutes, let it stand, demould it, and dry it at 40-50°C for 5-8 hours to obtain a soap with mite removal and antibacterial effects.

[0105] Comparative Example 6: Preparation of soap.

[0106] S1. 15 parts by mass of sodium hydroxide and 35 parts by mass of water were mixed, heated to 60-80 ℃, 7 parts by mass of Sargassum fusiformis extract, 6 parts by mass of Magnolia bark extract, 3 parts by mass of Paeonia suffruticosa root bark extract, 4 parts by mass of Sanguisorba officinalis extract, 20 parts by mass of olive oil were stirred for 0.5-1 hour to obtain a mixture A;

[0107] S2. 1 part by mass of glycerol and 13 parts by mass of polyglutamic acid having a relative molecular weight of 1 million were mixed and stirred at 50-60 ° C for 10-20min to obtain a mixture B;

[0108] S3. Add mixture B to mixture A and stir at 40-50°C for 20-30 min to obtain a mixed soap solution;

[0109] S4. Pour the mixed soap solution into a mold, seal it at 30-40°C for 20-30 minutes, let it stand, demould it, and dry it at 40-50°C for 5-8 hours to obtain a soap with mite removal and antibacterial effects.

[0110] Comparative Example 7: Preparation of soap.

[0111] S1. 15 parts by mass of sodium hydroxide and 35 parts by mass of water were mixed, heated to 60-80 ℃, 7 parts by mass of Sargassum fusiformis extract, 6 parts by mass of Magnolia bark extract, 3 parts by mass of Paeonia suffruticosa root bark extract, 4 parts by mass of Sanguisorba officinalis extract, 20 parts by mass of olive oil were stirred for 0.5-1 hour to obtain a mixture A;

[0112] S2. 1 part by mass of glycerol and 13 parts by mass of polyglutamic acid having a relative molecular weight of 10,000 were mixed and stirred at 50-60°C for 10-20min to obtain a mixture B;

[0113] S3. Add mixture B to mixture A and stir at 40-50°C for 20-30 min to obtain a mixed soap solution;

[0114] S4. Pour the mixed soap solution into a mold, seal it at 30-40°C for 20-30 minutes, let it stand, demould it, and dry it at 40-50°C for 5-8 hours to obtain a soap with mite removal and antibacterial effects.

[0115] Test Example 4: Stability test.

[0116] The soaps of Examples 5-7 and Comparative Examples 5-7 were placed under the faucet and the surfaces of the soaps were scrubbed with a towel. All surfaces were scrubbed. After washing, the soaps were placed at room temperature for 24 hours. After washing 10 times, the appearance was observed for cracks. The results are shown in Table 4.

[0117] Table 4. Quality test results of the soaps of Examples 5-7 and Comparative Examples 5-7.

[0118] sample Before washing After 10 washes Example 5 No cracks No cracks Example 6 No cracks No cracks Example 7 No cracks No cracks Comparative Example 5 No cracks A large number of cracks appear Comparative Example 6 No cracks A few cracks appear Comparative Example 7 No cracks A few cracks appear

[0119] As shown in Table 4, the soaps prepared in Examples 5-7 are supplemented with polyglutamic acid having a relative molecular weight of 400,000-700,000, which can improve the problem of the soaps being less durable and cracking caused by the addition of glycerol.

[0120] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit it. Although the present invention has been described in detail with reference to the above embodiments, ordinary technicians in the relevant field should understand that after reading the specification of this application, technicians can still modify or replace the specific implementation methods of the present invention with equivalents, but these modifications or changes do not depart from the scope of protection of the pending claims of the present application.

Claims

1. A soap with mite removal and antibacterial effects, characterized in that: The invention comprises the following components in parts by weight: 5-10 parts of Sargassum fusiformis extract, 3-8 parts of Magnolia officinalis extract, 1-5 parts of Paeonia suffruticosa root bark extract, 2-6 parts of Sanguisorba officinalis extract, 20-30 parts of olive oil, 10-20 parts of sodium hydroxide, 15-35 parts of water, 1-5 parts of glycerin, and 10-20 parts of polyglutamic acid; the relative molecular weight of the polyglutamic acid is 400,000-700,000; The extraction process of the Sargassum fusiformis extract is as follows: The dried and crushed Sargassum fusiformis is extracted with anhydrous ethanol under reflux, centrifuged, and the supernatant is concentrated to obtain the Sargassum fusiformis extract; The extraction process of the Magnolia Bark Extract is as follows: The dried and crushed Magnolia officinalis was extracted with anhydrous ethanol under reflux, centrifuged, and the supernatant was concentrated to obtain Magnolia officinalis extract; The extraction process of the peony root bark extract is as follows: The dried and crushed peony root bark is extracted with n-hexane under reflux, centrifuged, and the supernatant is concentrated to obtain the peony root bark extract; The extraction process of the raw Sanguisorba officinalis extract is as follows: The dried and crushed raw Sanguisorba officinalis is extracted with water under reflux, centrifuged, and the supernatant is concentrated to obtain the raw Sanguisorba officinalis extract.

2. The method for preparing the soap having mite-removing and antibacterial effects according to claim 1, characterized in that: The steps include: S1. Sodium hydroxide and water were mixed, heated to 60-80 ℃, and Sargassum fusiformis extract, Magnolia bark extract, Paeonia suffruticosa root bark extract, Sanguisorba officinalis extract, and olive oil were added and stirred to obtain a mixture A; S2. The glycerol and polyglutamic acid were mixed and stirred to obtain a mixture B; S3. Add mixture B to mixture A and stir to obtain a mixed soap solution; S4. Pour the mixed soap solution into a mold, seal it, let it stand, demould it, and dry it to obtain a soap with mite-removing and antibacterial effects.