Formula and process of Chinese herbal medicine fragrant bacteriostatic mouthwash

Abstract

The invention belongs to the technical field of oral care preparation, and particularly relates to a formula and a process of Chinese herbal medicine fragrant bacteriostatic mouthwash. The Chinese herbal medicine fragrant bacteriostatic mouthwash is prepared from the following raw materials in percentage by weight: 1 to 3 percent of ethanol, 8 to 12 percent of glycerol, 0.15 to 0.25 percent of peppermint essential oil, 8 to 12 percent of lemon grass essential oil, 12 to 17 percent of peppermint essential oil hydrolat, 3 to 7 percent of lemon grass essential oil hydrolat, 0.2 to 0.4 percent of menthol, 5 to 7 percent of xylitol, 0.04 to 0.06 percent of citric acid, 1.2 to 1.8 percent of rhizoma paridis total saponin freeze-dried powder and the balance of water. The sum of the total mass percentages is 100%. Most of the components in the formula are extracted from natural Chinese herbal medicines, are free of irritation and side effects, have pure natural fragrance and soft and delicious taste, and are obvious in antibacterial effect.

Description

Technical Field

[0001] The invention belongs to the technical field of oral care preparation, and specifically relates to a formula and process of a Chinese herbal aromatic antibacterial mouthwash. Background Art

[0002] With the improvement of living standards, people pay more and more attention to etiquette in life. As one of the etiquettes in life, oral hygiene has also received great attention from people. As one of the essential products for oral hygiene, mouthwash is widely used in the care and prevention of caries. Mouthwash can generally solve a variety of oral problems and has multiple functions such as anti-inflammatory, sterilization, and fresh breath.

[0003] There are many types of mouthwashes on the market, but most of them contain antibiotics or fluoride to prevent tooth decay. These substances are highly irritating to the oral cavity and may cause adverse reactions if ingested, especially for infants and young children, which poses a great safety hazard. Some mouthwashes contain more aromatic substances to increase the aromatic effect, resulting in complex ingredients and preparation.

[0004] Paris polyphylla is the dried rhizome of Paris polyphylla Smith var.yunnanensis (Franch.) Hand.-Mazz., a plant of the Liliaceae family. It is the raw material for famous Chinese patent medicines such as Yunnan Baiyao and Pien Tze Huang. Its total saponin components have antibacterial, hemostatic, anti-cancer, and analgesic effects. It is often used as a raw material for daily chemical products such as toothpaste, cosmetics, and mouthwash. Mint is the dried aerial part of Mentha haplocalyx Briq., a plant of the Lamiaceae family. Its main active ingredient is volatile oil, which has a special fragrance and is pungent and cool. It has antibacterial, antiviral, anti-inflammatory and analgesic effects, and can freshen breath, soothe oral mucosa, and promote transdermal absorption. Lemongrass is the aerial part of Cymbopogon citratus (DC) Stapf, a plant of the Gramineae family. Its main active ingredient is also volatile oil, which has a lemon aroma and strong antibacterial ability. Peppermint essential oil hydrosol and lemongrass essential oil hydrosol are saturated distilled stock solutions separated during the process of water distillation and extraction when extracting peppermint essential oil and lemongrass essential oil. They are a by-product of essential oils, with no impurities, pure ingredients, and a fresh and elegant fragrance. During the process research, it was found that if Paris polyphylla is extracted by decoction as a raw material, the decoction is too dark in color, tastes bitter and has a numbing tongue, and is not suitable for direct decoction and addition to mouthwash; and peppermint and lemongrass are both aromatic medicinal materials, and their essential oils need to be extracted. After many tests, it was found that the extraction rate of peppermint essential oil was low, only about 1.5%, which was significantly different from the information found. Summary of the invention

[0005] The purpose of the present invention is to add a taste receptor blocker to improve the taste and inhibit the irritation and side effects of bad taste, while most traditional mouthwashes add deodorants to prevent and eliminate bad breath. The present invention mainly utilizes the safety, effectiveness and special aroma of Chinese herbal medicines and their extracts to provide a formula and process for a Chinese herbal aromatic antibacterial mouthwash. Most of the ingredients in the formula are extracted from natural Chinese herbal medicines, are non-irritating and have no side effects, have a pure natural aroma and a soft and delicious taste, and have a significant antibacterial effect.

[0006] In order to achieve the above invention object, the technical solution of the present invention is as follows:

[0007] A Chinese herbal aromatic antibacterial mouthwash comprises the following raw materials in percentage by weight: 1-3% ethanol, 8-12% glycerol, 0.15-0.25% peppermint essential oil, 8-12% lemongrass essential oil, 12-17% peppermint essential oil hydrosol, 3-7% lemongrass essential oil hydrosol, 0.2-0.4% menthol, 5-7% xylitol, 0.04-0.06% citric acid, 1.2-1.8% paridis total saponin freeze-dried powder, and the remainder is water, and the sum of the total mass percentages is 100%.

[0008] Preferably, a Chinese herbal aromatic antibacterial mouthwash comprises the following raw materials in percentage by weight: 1% ethanol, 10% glycerol, 0.20% peppermint essential oil, 10% lemongrass essential oil, 15% peppermint essential oil hydrosol, 5% lemongrass essential oil hydrosol, 0.30% menthol, 6% xylitol, 0.05% citric acid, 1.5% Paris polyphylla total saponin freeze-dried powder, and the remainder is water, and the sum of the total mass percentages is 100%.

[0009] As a preferred embodiment of the present application, the preparation method of the Chinese herbal aromatic antibacterial mouthwash comprises the following steps:

[0010] 1) using peppermint as a raw material, adopting a distillation method to prepare peppermint essential oil and peppermint essential oil hydrosol respectively;

[0011] 2) using lemongrass as a raw material, and adopting a distillation method to prepare lemongrass essential oil and lemongrass essential oil hydrosol respectively;

[0012] 3) Using Paris polyphylla as a raw material, preparing a dilute extract by an alcohol extraction method, and then freeze-drying the dilute extract to obtain a freeze-dried powder of Paris polyphylla total saponins;

[0013] 4) Weigh the raw materials in proportion, and then mix them in proportion to obtain the product.

[0014] Furthermore, the specific steps of step 1) of the preparation method of the Chinese herbal aromatic antibacterial mouthwash are: weighing and collecting an appropriate amount of shade-dried mint, cutting it into small segments of 2 to 3 cm, removing the mint stems, weighing 100 g of mint leaves, distilling them through a Clevenger-type device, placing the mint leaves in a round-bottom flask, soaking them for a period of time after controlling the solid-liquid ratio, and then distilling them until the content of mint essential oil no longer increases, stopping the distillation and letting it stand for a while, taking out the mint essential oil in the oil-water separator before it solidifies, and starting to collect mint hydrosol after collecting the mint essential oil, and setting the mint essential oil hydrosol aside.

[0015] Preferably, in step 1), the ratio of the mass g of the mint leaves to the volume mL of water is 1:10; the soaking time is 1.2-1.8 hours; the distillation time is 2-2.5 hours; and the mixture is allowed to stand for 30±5 minutes after the distillation is stopped.

[0016] Furthermore, the specific steps of step 2) of the preparation method of the Chinese herbal aromatic antibacterial mouthwash are: weighing and collecting an appropriate amount of shade-dried lemongrass, cutting it into small segments of 2 to 3 cm, distilling it through a Clevenger-type device, placing the lemongrass in a round-bottom flask, soaking it for a period of time after controlling the solid-liquid ratio, and then distilling it until the content of lemongrass essential oil no longer increases, stopping the distillation and letting it stand for a while, taking out the lemongrass essential oil in the oil-water separator before it solidifies, and starting to collect lemongrass hydrosol after taking out the lemongrass essential oil, and setting the lemongrass hydrosol aside.

[0017] Preferably, in step 2), the ratio of the mass g of lemongrass to the volume mL of water is 1:10; the soaking time is 0.8-1.2 h; the distillation time is 2-2.5 h; and the distillation is stopped and allowed to stand for 30±5 min.

[0018] Furthermore, the specific steps of step 3) of the preparation method of the Chinese herbal aromatic antibacterial mouthwash are: weighing an appropriate amount of sun-dried Paris polyphylla and grinding it into powder, using ethanol as an extraction solvent, controlling the liquid-to-solid ratio for extraction, and then continuously refluxing for extraction, soaking for a while before extraction, recovering ethanol after extraction until a dilute extract appears, and freeze-drying the dilute extract to obtain Paris polyphylla total saponin freeze-dried powder.

[0019] Preferably, in step 3), 70wt% ethanol is used as the extraction solvent, the ratio of the volume of the liquid mL to the mass of the material g is 30:1; the extraction time is 60±10min, each time and the number of continuous reflux extractions is 2 times; the soaking time before extraction is 90±10min.

[0020] The present application also protects the Chinese herbal aromatic antibacterial mouthwash directly prepared by the above method.

[0021] Recommendation: How to use the Chinese herbal aromatic antibacterial mouthwash: Pour the Chinese herbal aromatic antibacterial mouthwash into your mouth, rinse your mouth for 20-30 seconds and spit it out. It is recommended to use it every morning and evening or after meals.

[0022] Compared with the prior art, the present invention has the following beneficial effects:

[0023] (1) The present invention selects Chinese medicinal materials with antibacterial, anti-inflammatory, heat-clearing and detoxifying effects, and combines modern pharmaceutical technology to prepare a safe, effective and good-tasting mouthwash product.

[0024] (2) Made from pure natural Chinese herbal extracts, the product has a fresh taste and aromatic smell, is safe and non-irritating, and is suitable for long-term use.

[0025] (3) It has a fresh taste and aromatic smell, which enhances the pleasure of oral cleaning.

[0026] (4) The mouthwash tastes sweet, refreshing, and non-irritating. It can relieve greasiness after meals. It also has a good antibacterial effect and can effectively inhibit the growth of oral bacteria.

[0027] (5) The preparation process has been improved through multiple trials, and the extraction rate is high, which effectively increases the extraction rate of essential oils, and the extraction rate of peppermint essential oil reaches 2.4%. In the process of essential oil extraction, it is found that the hydrosol also has a very strong aroma, which can be used in mouthwash. Finally, a Chinese herbal mouthwash with no irritation and toxic side effects and good taste is made. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 This is a product display of the Chinese herbal aromatic antibacterial mouthwash prepared by this method. Figure 1 It can be seen that the obtained Chinese herbal aromatic antibacterial mouthwash is transparent in color.

[0029] Figure 2 This is the antibacterial result diagram of 1# during the antibacterial experiment;

[0030] Figure 3 This is the antibacterial result diagram of 2# during the antibacterial experiment;

[0031] Figure 4 This is the antibacterial result diagram of 3# during the antibacterial experiment;

[0032] Figure 5 This is the antibacterial result diagram of 4# during the antibacterial experiment;

[0033] Figure 6 This is the antibacterial result diagram of 5# during the antibacterial experiment;

[0034] Figure 7 Schematic diagram of the acquisition position relationship of essential oil and hydrosol in the extraction device. DETAILED DESCRIPTION

[0035] All features disclosed in this specification, or steps in all methods or processes disclosed, except mutually exclusive features and / or steps, can be combined in any manner.

[0036] Any feature disclosed in this specification (including claims and abstract), unless otherwise stated, may be replaced by other equivalent or alternative features having similar purposes. That is, unless otherwise stated, each feature is only an example of a series of equivalent or similar features.

[0037] The features and performance of the present invention are further described in detail below in conjunction with the embodiments.

[0038] In the present invention, the material-liquid ratio refers to the ratio of the mass g of the material to the volume mL of the liquid; % represents the mass percentage unless otherwise specified.

[0039] Diagram of the structure of the Clevenger type apparatus for distillation. In the extraction apparatus, the upper layer is the essential oil and the lower layer is the hydrosol.

[0040] Embodiment 1:

[0041] Initial decoction test

[0042] Remove the mud and sand from Paris polyphylla, soak it in cold water for 1 hour and cut it into slices. Remove impurities from lemongrass and mint and cut them into sections. Put Paris polyphylla in a pot, add appropriate amount of water, boil for 10 minutes, then add lemongrass and mint, and boil for about 3 minutes until the color turns golden yellow and the juice is concentrated. Finally, filter with gauze to remove the residue and get the Chinese medicine juice.

[0043] Results: The color of the juice is too dark, it tastes bitter and numbing, and the mint aroma is not obvious. Therefore, the decoction method is not suitable as an extraction process. Mint and lemongrass are both aromatic herbs, and the distillation method can be used to extract the active ingredients of the medicine. The active ingredient of Paris polyphylla is saponin, and the alcohol extraction method has a better extraction effect.

[0044] Mint and lemongrass are extracted by distillation, and Paris polyphylla is extracted by alcohol extraction

[0045] Extraction of peppermint essential oil: Weigh 100g of shade-dried peppermint, cut into 2-3cm small pieces, and distill through a Clevenger-type device. Place the material in a round-bottom flask, soak for 1h at a material-liquid ratio of 1:10, and then distill for 2h until the essential oil content no longer increases. After stopping the distillation, let it stand for about 30min, and take out the peppermint essential oil in the oil-water separator before it solidifies.

[0046] Extraction of lemongrass essential oil: Weigh 100g of the collected shade-dried lemongrass, cut it into 2-3cm small segments, and distill it through a Clevenger-type device. Place the material in a round-bottom flask, soak it for 1h at a material-liquid ratio of 1:10, and then distill it for 2h until the essential oil content no longer increases. After stopping the distillation, let it stand for about 30min, and take it out of the lemongrass essential oil in the oil-water separator before it solidifies.

[0047] Paris polyphylla extraction: Weigh 100g of Paris polyphylla collected and dried in the shade and grind it into powder, use 70% ethanol as the extraction solvent, liquid-to-solid ratio 30:1 (mL:g), extraction time 60min each time and continuous reflux extraction 2 times, soaking time before extraction is 90min. After extraction, recover ethanol and concentrate it and then freeze-dry it to obtain Paris polyphylla freeze-dried powder.

[0048] Results: The extracted essential oil has a strong aroma, transparent color and no foreign matter, and the Paris polyphylla freeze-dried powder is brown-yellow. The extraction rate of peppermint essential oil is only 1.5%. After many experiments, it was found that increasing the soaking time and removing the peppermint stems can effectively increase the extraction rate.

[0049] Improvement of Extraction Technology of Peppermint Essential Oil

[0050] Weigh an appropriate amount of shade-dried mint collected, cut into 2-3 cm small segments, remove the mint stems, weigh 100 g of mint leaves, and distill through a Clevenger-type device. Place the material in a round-bottom flask, soak for 1.5 hours at a material-liquid ratio of 1:10, and then distill for 2 hours until the essential oil content no longer increases. After stopping the distillation, let it stand for about 30 minutes, and take out the mint essential oil in the oil-water separator before it solidifies.

[0051] Results: This improvement effectively increased the extraction rate of essential oils, and the extraction rate of peppermint essential oils reached 2.4%. In the process of essential oil extraction, it was found that peppermint essential oil hydrosol also had a strong aroma, which could be well utilized.

[0052] The discovery of hydrosol

[0053] After collecting the peppermint essential oil, I unexpectedly discovered that the remaining peppermint hydrosol exudes a strong aroma. When you apply the peppermint essential oil hydrosol to your skin, you will instantly feel a cool sensation. It tastes refreshing and has a more obvious impact on your taste buds.

[0054] So after the essential oil extraction was completed, the hydrosol was collected, and it was found that its aroma was strong and the taste was light. Based on some taste problems in the previous formulation, peppermint essential oil hydrosol and lemongrass essential oil hydrosol were tried, and it was found that the taste and aroma could be effectively improved. Therefore, after taking out the lemongrass essential oil, the lemongrass essential oil hydrosol was collected and set aside.

[0055] Based on the above research, the extraction processes of lemongrass and mint have been determined, and it has been found that hydrosols can be added to mouthwash. The extraction process of Tripterygium wilfordii has also been temporarily determined, awaiting subsequent optimization or finding a better method to replace it.

[0056] 5. Sensory evaluation

[0057] Through experiments and calculations, it was found that the antibacterial effect can be achieved when the Paris polyphylla extract is added in an amount of 1.5%, and the Paris polyphylla extract has no significant effect on the taste, so the Paris polyphylla extract addition amount is fixed at 1.5%. Table 1 is used as the sensory evaluation standard, and single factor experiments and orthogonal experiments are performed to screen out the appropriate prescription.

[0058] Table 1 Sensory evaluation standards

[0059]

[0060] The sensory evaluation adopts a comprehensive score of 100 points, including 20 points for color, 30 points for smell, and 50 points for taste. Eight taste-sensitive scorers are selected to form an evaluation team to conduct sensory evaluation of the mouthwash and take the average score.

[0061] 5.1 Single Factor Experiment

[0062] Table 2 was used as the quantitative standard in the single factor experiment to investigate the addition amounts of compound essential oil, hydrosol, ethanol, glycerin, xylitol, and citric acid.

[0063] Table 2 Quantitative standards for single factor experiments

[0064]

[0065] The results show that the compound essential oil will have a stronger flavor and richer taste when it is 20% to 25%.

[0066] During the seasoning process, it was found that peppermint essential oil has a strong bitter taste and a strong aroma. Its hydrosol has a strong aroma and is also bitter. Lemongrass essential oil has a slightly bitter taste, but no obvious feeling, and has a strong aroma. Its hydrosol has a sufficient cooling feeling. Therefore, the mass ratio of the compound essential oil is 1:2 (peppermint: lemongrass).

[0067] 5.1.2 Hydrosol

[0068]

[0069] The results show that the aroma is more obvious and the cooling feeling is more obvious when the amount of hydrosol is 15% to 25%. Lemongrass hydrosol is bitter, but the aroma is strong, so the mass ratio of the hydrosol is 2:1 (mint: lemongrass).

[0070] 5.1.3 Ethanol

[0071]

[0072] The results showed that when the ethanol content was between 0.5% and 2%, the ethanol had no significant effect on the taste of the mouthwash, but at 0.5%, the essential oil was not completely dissolved and was not suitable for use. When the ethanol content exceeded 2%, there would be a slight bitter taste and irritation.

[0073] 5.1.4 Xylitol

[0074]

[0075] The results show that when the amount of xylitol is 4% to 7%, the mouthwash tastes best. When the amount of xylitol is 6%, the solution is saturated and xylitol will precipitate. Therefore, the optimal amount is 4% to 5%.

[0076] 5.1.5 Glycerol

[0077]

[0078] Glycerin has a lubricating and moisturizing effect. The results show that glycerin has no obvious effect on the taste of mouthwash, but when the added amount is 10%, there will be no obvious astringency in the mouth and the taste will be more comfortable.

[0079] 5.1.6 Citric acid

[0080]

[0081] The results show that when the citric acid content is 0.05%, the mouthwash tastes sweet and sour and is comfortable. When the amount exceeds 0.06%, there will be a noticeable sour sensation that irritates the mouth and it is not suitable for use.

[0082] 5.1.7 Menthol

[0083]

[0084] The results show that when the dosage of menthol is 0.2%, the taste is the best, the mint cool impact is obvious, but it does not irritate the mouth. Too much dosage will cause excessive irritation in the mouth and a slightly bitter taste.

[0085] 5.2 Orthogonal experiment

[0086] According to the results of the single-factor experiment, it was found that compound essential oils, xylitol, and citric acid had a greater impact on the sensory experience of mouthwash. Ethanol was used at a dosage of 1%, glycerin at a dosage of 10%, and hydrosol at a dosage of 20%.

[0087] Orthogonal experiments were conducted based on the dosages with higher scores among compound essential oils, hydrosols, ethanol, xylitol, and citric acid.

[0088] Orthogonal experimental factors and level design Table 3

[0089]

[0090]

[0091] Orthogonal experiment results table

[0092]

[0093] From the above table, we can see that the best process conditions are 0.30% compound essential oil, 0.30% menthol, 6% xylitol, and 0.05% citric acid. In summary, the best formula for mouthwash is 1% ethanol, 10% glycerol, 20% hydrosol, 0.30% compound essential oil, 0.30% menthol, 6% xylitol, 0.05% citric acid, 1.5% Paris polyphylla freeze-dried powder, and the balance is water, and the total mass percentage is 100%.

[0094] Example 2: Antibacterial experiment:

[0095] Based on Example 1, an antibacterial experiment was conducted: clean water was contained in the mouth, and the cheeks and lips were agitated so that the clean water could fully contact the teeth and gums in the mouth, and the water force was used to repeatedly rinse various parts of the mouth, so as to remove the food residues and soft scales in the small grooves, interdental spaces, gums, lip and cheek grooves of the teeth as much as possible. The pure water containing about 30ml was repeatedly rinsed with saliva for several times and then spit out, 1ml of the oral bacterial liquid provided by the tester was taken to a 100ml volumetric flask, sterilized pure water was added to make up to 100ml, and the oral bacterial suspension was prepared by mixing. An appropriate bacterial suspension was inoculated into the culture medium by coating, and then the sterilized disc was soaked in the mouthwash for a few seconds and placed in the center of the culture medium. Finally, the culture medium was placed in a 37℃ incubator for 48h and the results were observed.

[0096] In the following experiments, hydrosol refers to a substance formed by mixing peppermint essential oil hydrosol and lemongrass essential oil hydrosol in a mass ratio of 2:1; compound essential oil refers to a substance formed by mixing peppermint essential oil and lemongrass essential oil in a mass ratio of 1:2.

[0097] 1#: normal saline;

[0098] 2#: No essential oil is added (i.e., the formula is 1% ethanol, 10% glycerin, 20% hydrosol, 0.30% menthol, 6% xylitol, 0.05% citric acid, 1.5% Paris polyphylla freeze-dried powder, and the balance is water, and the sum of the total mass percentage is 100%);

[0099] 3#: Contains 0.2% essential oil (1% ethanol, 10% glycerin, 20% hydrosol, 0.20% compound essential oil, 0.30% menthol, 6% xylitol, 0.05% citric acid, 1.5% Paris polyphylla freeze-dried powder, the remainder is water, and the sum of the total mass percentage is 100%);

[0100] 4#: Contains 0.4% essential oil (1% ethanol, 10% glycerin, 20% hydrosol, 0.40% compound essential oil, 0.30% menthol, 6% xylitol, 0.05% citric acid, 1.5% Paris polyphylla freeze-dried powder, the remainder is water, and the sum of the total mass percentage is 100%);

[0101] 5#: Contains only essential oil (i.e. the formula is 1% ethanol, 10% glycerin, 0.30% compound essential oil, 0.30% menthol, 6% xylitol, 0.05% citric acid, 1.5% Paris polyphylla freeze-dried powder, and the remainder is water, and the sum of the total mass percentages is 100%).

[0102] For detailed experimental results, see Figures 2 to 6 ;Depend on Figure 2 It can be seen that normal saline has no inhibition zone; Figure 3 It can be seen that without adding essential oil, the antibacterial circle of pure dew is smaller and the antibacterial effect is not obvious; Figure 4 It can be seen that when the essential oil content is 0.2%, the inhibition zone is larger; Figure 5 It can be seen that when the essential oil content is 0.4%, the inhibition zone is significantly larger than when the essential oil content is 0.2%. Figure 6 It can be seen that the inhibition zone of pure essential oil is significantly larger than the other inhibition zones.

[0103] The above-mentioned embodiments only express the specific implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the protection scope of the present application. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the technical solution concept of the present application, and these all belong to the protection scope of the present application.

[0104] This background section is provided to generally present the context of the invention, and the work of the presently named inventors, the work to the extent described in this background section, and aspects of this section that did not constitute prior art at the time of application are neither explicitly nor implicitly admitted to be prior art to the present invention.

Claims

1. A Chinese herbal aromatic antibacterial mouthwash, characterized in that The invention comprises the following raw materials in percentage by weight: 1-3% ethanol, 8-12% glycerol, 0.15-0.25% peppermint essential oil, 8-12% lemongrass essential oil, 12-17% peppermint essential oil hydrosol, 3-7% lemongrass essential oil hydrosol, 0.2-0.4% menthol, 5-7% xylitol, 0.04-0.06% citric acid, 1.2-1.8% Paris polyphylla total saponin freeze-dried powder, and the balance is water, and the sum of the total mass percentage is 100%.

2. A Chinese herbal aromatic antibacterial mouthwash according to claim 1, characterized in that The invention comprises the following raw materials in percentage by weight: 1% ethanol, 10% glycerol, 0.20% peppermint essential oil, 10% lemongrass essential oil, 15% peppermint essential oil hydrosol, 5% lemongrass essential oil hydrosol, 0.30% menthol, 6% xylitol, 0.05% citric acid, 1.5% Paris polyphylla total saponin freeze-dried powder, and the balance is water, and the sum of the total mass percentages is 100%.

3. A method for preparing a Chinese herbal aromatic antibacterial mouthwash according to claim 1 or 2, characterized in that The following steps are involved: 1) using peppermint as a raw material, adopting a distillation method to prepare peppermint essential oil and peppermint essential oil hydrosol respectively; 2) using lemongrass as a raw material, and adopting a distillation method to prepare lemongrass essential oil and lemongrass essential oil hydrosol respectively; 3) Using Paris polyphylla as a raw material, preparing a dilute extract by an alcohol extraction method, and then freeze-drying the dilute extract to obtain a freeze-dried powder of Paris polyphylla total saponins; 4) Weigh the raw materials in proportion, and then mix them in proportion to obtain the product.

4. The method for preparing the Chinese herbal aromatic antibacterial mouthwash according to claim 3, characterized in that The specific steps of step 1) are: weighing and collecting an appropriate amount of shade-dried mint, cutting it into small segments of 2 to 3 cm, removing the mint stems, weighing 100 g of mint leaves, distilling through a Clevenger-type device, placing the mint leaves in a round-bottom flask, soaking for a period of time after controlling the solid-liquid ratio, and then distilling until the content of mint essential oil no longer increases, stopping the distillation and standing for a while, taking out the mint essential oil in the oil-water separator before it solidifies, and starting to collect mint hydrosol after collecting the mint essential oil, and setting the mint essential oil hydrosol aside.

5. The method for preparing the Chinese herbal aromatic antibacterial mouthwash according to claim 3, characterized in that The specific steps of step 2) are: weighing and collecting an appropriate amount of shade-dried lemongrass, cutting it into small segments of 2 to 3 cm, distilling it through a Clevenger-type device, placing the lemongrass in a round-bottom flask, soaking it for a period of time after controlling the solid-liquid ratio, and then distilling it until the content of lemongrass essential oil no longer increases, stopping the distillation and letting it stand for a while, taking out the lemongrass essential oil in the oil-water separator before it solidifies, and starting to collect lemongrass hydrosol after taking out the lemongrass essential oil, and setting the lemongrass hydrosol aside.

6. The method for preparing the Chinese herbal aromatic antibacterial mouthwash according to claim 3, characterized in that The specific steps of step 3) are: weighing an appropriate amount of sun-dried Paris polyphylla and grinding it into powder, using ethanol as an extraction solvent, controlling the liquid-to-solid ratio for extraction, and then continuously reflux extraction, soaking for a while before extraction, recovering ethanol after extraction until a dilute extract appears, and freeze-drying the dilute extract to obtain freeze-dried powder of Paris polyphylla total saponins.

7. The method for preparing a Chinese herbal aromatic antibacterial mouthwash according to claim 4, characterized in that: In step 1), the ratio of the mass g of the mint leaves to the volume mL of water is 1:10; the soaking time is 1.2-1.8 hours; the distillation time is 2-2.5 hours; and the mixture is allowed to stand for 30±5 minutes after the distillation is stopped.

8. The method for preparing a Chinese herbal aromatic antibacterial mouthwash according to claim 3, characterized in that: In step 2), the ratio of the mass g of lemongrass to the volume mL of water is 1:10; the soaking time is 0.8-1.2 hours; the distillation time is 2-2.5 hours; and the distillation is stopped and allowed to stand for 30±5 minutes.

9. The method for preparing a Chinese herbal aromatic antibacterial mouthwash according to claim 3, characterized in that: In step 3), 70 wt% ethanol is used as the extraction solvent, the ratio of the volume of the liquid mL to the mass of the material g is 30:1; the extraction time is 60±10 min, each time and the number of continuous reflux extractions is 2 times; the soaking time before extraction is 90±10 min.

10. A Chinese herbal aromatic antibacterial mouthwash prepared according to any one of claims 4 to 9.

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