A pectin-coated volcanic stone oral abrasive loaded with saussurea involucrate extract and a preparation method thereof

Abstract

The present application relates to the technical field of oral abrasive, in particular to a pectin-coated volcanic stone oral abrasive loaded with saussurea involucrate extract and a preparation method thereof. The oral abrasive comprises volcanic stone particles, saussurea involucrate extract, calcium pectin and an auxiliary agent. The volcanic stone particles serve as a natural porous abrasive, providing strength support and drug loading; the saussurea involucrate extract serves as an active ingredient, providing anti-inflammatory and antibacterial effects; the calcium pectin serves as a controlled-release agent and coating material, forming a gel network with calcium ions to control the release of the saussurea involucrate extract and wrapping the volcanic stone particles to form a flexible contact, buffering the direct friction of the abrasive on the tooth enamel; the components synergistically achieve the integrated effects of "physical cleaning-gel protection-traditional Chinese medicine treatment", ensuring the cleaning effect while reducing the dentin abrasion value, reducing the damage to the tooth enamel and effectively inhibiting oral pathogenic bacteria. The preparation method of the oral abrasive is simple, low in cost and has a broad application prospect.

Description

Technical Field

[0001] This invention relates to the field of dental abrasives technology, specifically to a pectin-coated volcanic rock dental abrasive loaded with Heilongjiang chrysanthemum extract and its preparation method. Background Technology

[0002] Oral abrasives, commonly used in polishing powders, abrasive pastes, toothpaste, tooth powder, mouthwash, etc., are widely used in daily life to maintain oral hygiene and prevent oral diseases. As an abrasive, oral abrasives are the main component that ensures rapid removal of plaque and prevents staining. The principle behind abrasives cleaning teeth is that particles harder than plaque and soft deposits but smaller than dentin rub against the teeth, thereby achieving a cleaning effect.

[0003] Natural hard materials have been used in oral hygiene compositions. Natural materials such as perlite, pumice, obsidian, and volcanic ash are used as abrasive components in toothpastes to improve cleaning effectiveness. While abrasives enhance cleaning, they can also cause significant tooth abrasion, potentially leading to excessive damage. Therefore, controlling enamel wear while ensuring good cleaning results remains a long-standing technical challenge in the field of oral care.

[0004] Pectin, as a natural polymer material, has been reported to have applications in oral care. A patent discloses a probiotic toothpaste containing pectin and shellac resin. During brushing, a film composed of colloids and binders forms on the tooth surface. This film prevents direct contact between the toothbrush bristles and the tooth surface, and the force exerted by the toothbrush is evenly distributed and buffered through the film, thereby reducing damage to sensitive teeth and gums. Furthermore, chewable oral care compositions containing arginine and pectin have also been reported, used to deliver arginine to the tooth surface to achieve anti-caries benefits.

[0005] Therefore, there is no systematic study in the prior art on reducing the damage of abrasive to tooth enamel while ensuring cleaning power. This invention studies the use of pectin together with natural porous abrasives such as volcanic rock. Summary of the Invention

[0006] In view of the above-mentioned technical problems, this invention proposes a pectin-coated volcanic rock oral abrasive loaded with Henjiang Saussurea extract and its preparation method. This invention uses porous volcanic rock abrasive in synergy with pectin binder to achieve a balance between cleaning and protection; it applies Henjiang Saussurea extract to the oral abrasive; and it combines volcanic rock, Henjiang Saussurea extract, and pectin to achieve an integrated "cleaning-protection-treatment" oral abrasive.

[0007] To achieve the above objectives, the present invention adopts the following technical solution.

[0008] This invention provides a pectin-coated volcanic rock oral abrasive loaded with Henjiang chamomile extract, comprising the following parts by weight: 100 parts volcanic rock particles, 0.5-5 parts Henjiang chamomile extract, 1-15 parts calcium pectin, and 0.2-2 parts additives; wherein the volcanic rock particles are coated with calcium pectin, and the Henjiang chamomile extract is uniformly dispersed in the pores of the volcanic rock and in the calcium pectin.

[0009] Furthermore, the chemical composition of the volcanic rock particles includes: SiO2 65-75 wt%, Al2O3 10-15 wt%, Fe2O3 2-5 wt%, K2O+Na2O 5-8 wt%, CaO+MgO 2-5 wt%; the median particle size D50 of the volcanic rock particles is 5-30 μm, D90 is not greater than 50 μm, and the specific surface area is 15-40 m². 2 / g.

[0010] Furthermore, the extract of Henjiang Saussurea involucrata is an ethanol extract; the extract of Henjiang Saussurea involucrata contains at least one active ingredient selected from agarin A, agarin B, cynarin, samarinol, apigenin, luteolin, and chlorogenic acid.

[0011] Furthermore, pectin calcium is a combination of low-ester pectin and soluble calcium salt.

[0012] Furthermore, the degree of esterification of the low-ester pectin is 20-50%; the mass fraction of soluble calcium salt is 0.01-0.5 wt% of the low-ester pectin, and the soluble calcium salt is one or more combinations of calcium lactate, calcium gluconate, or calcium chloride.

[0013] Furthermore, the additives are one or more combinations of humectants, foaming agents, sweeteners, preservatives, fragrances, or colorants.

[0014] This invention also provides a pectin-coated volcanic rock oral abrasive loaded with Heilongjiang Saussurea extract, comprising the following steps: Step 1: Preparation of Heilongjiang Saussurea extract; Step 2, Slurry preparation; Step 3: Spray molding.

[0015] Further, step 1 specifically involves: taking dried roots and inflorescences of *Saussurea involucrata* from Heilongjiang, pulverizing them through a 40-mesh sieve; weighing 100 portions, adding 10 times their weight of food-grade ethanol, soaking for 1-4 hours, then heating under reflux to extract for 1-6 hours, filtering; concentrating under reduced pressure at 50℃ to recover the ethanol, concentrating until no alcohol odor remains, and then continuing to concentrate until the relative density at 60℃ is 1.10-1.15 g / cm³. 3 Extract of Heilongjiang Saussurea involucrata was obtained.

[0016] Further, step 2 specifically involves: dissolving Henjiang chamomile extract and low-ester pectin in an appropriate amount of deionized water at 40°C, stirring until a mixed solution is formed, then adding soluble calcium salt and stirring for 5-20 minutes, adding volcanic rock particles and dispersing them at a stirring speed of 300-600 rpm for 10-25 minutes to ensure that the volcanic rock particles are evenly dispersed in the mixed solution, adding additives and stirring for 5-10 minutes to obtain a slurry.

[0017] Further, step 3 specifically involves adding the slurry to an atomization molding device with an atomization pressure of 0.2-0.5 MPa and an outlet air temperature of 95-110℃, and passing it through an 80-120 mesh sieve to obtain oral abrasive.

[0018] This invention utilizes volcanic rock as a hard and porous matrix to provide mechanical support and load-bearing function; calcium pectin as a flexible medium to provide the function of coating the hard matrix and slow-releasing Heilongjiang chamomile extract, while avoiding deep mechanical scratches to teeth, tongue, oral mucosa, etc. by the hard matrix; the additives improve the wetting and dispersion performance and integrity of each component of the oral abrasive; in addition, the edible alcohol and deionized water are used as extractants and diluents to assist the preparation process.

[0019] *Saussurea involucrata*, a perennial herbaceous plant belonging to the genus *Saussurea* in the family Asteraceae, is mainly distributed in Heilongjiang, Jilin, Liaoning, Inner Mongolia in China, as well as North Korea and the Russian Far East. Traditional Chinese medicine considers it bitter and cold in nature, possessing the effects of clearing heat and drying dampness, purging fire and detoxifying, and is mainly used to treat oral diseases such as mouth ulcers and swollen gums. Modern chemical research shows that *Saussurea involucrata* contains flavonoids such as apigenin and luteolin, as well as sesquiterpene lactones such as agarin A / B and cynarin, exhibiting anti-inflammatory and antibacterial biological activities. *Saussurea involucrata* extract is a product combining traditional medical theory and modern technology, possessing multiple functions including biological activity, anti-inflammatory properties, and immunomodulatory effects.

[0020] Compared with the prior art, the beneficial effects of the present invention are as follows.

[0021] 1. This invention achieves a comprehensive improvement in the performance of oral abrasives through optimized formulation and preparation process. Volcanic rock particles, as the core hard material, ensure the cleaning and load-bearing functions of the oral abrasive through their high porosity and excellent mechanical properties. Henjiang Saussurea extract integrates traditional medicine theory with modern technology, providing new ideas for oral hygiene and treatment. Flexible pectin calcium, as a controlled-release agent and coating material, forms a gel network with calcium ions in the oral environment to control the release of Henjiang Saussurea extract, and also encapsulates the volcanic rock particles to form a flexible contact, buffering the direct friction of the abrasive against tooth enamel. The combination of these three components also produces a synergistic effect, thus forming an integrated "cleaning-protection-treatment" oral abrasive technical solution.

[0022] 2. The preparation process of the oral abrasive described in this invention has strong controllability and operability. In step 1, the quality and yield of the Heilongjiang Saussurea extract are ensured by precisely controlling a series of preparation conditions such as pulverization, soaking, and reflux. In step 2, the uniformity and stability of the slurry are ensured by optimizing the order and proportion of raw materials and additives. In step 3, the quality and yield of the oral abrasive are further improved by controlling the outlet air temperature, atomization pressure, and filter mesh size of the atomization molding equipment.

[0023] 3. The preparation process of the oral abrasive described in this invention is simple, and the required raw materials can be directly purchased from the market, resulting in low cost. It is suitable for products such as toothpaste, tooth powder, mouthwash, and abrasive paste.

[0024] 4. The oral abrasive described in this invention has the characteristics of low damage and high cleaning efficiency, and also has high anti-inflammatory and antibacterial capabilities.

[0025] 5. The oral abrasive described in this invention can provide excellent care effects in various scenarios such as daily oral cleaning and hospital treatment.

[0026] 6. The core components of the oral abrasive described in this invention are all natural raw materials, and there are no harmful emissions during manufacturing, transportation, storage and construction, thus avoiding pollution to the atmosphere, soil and water. Attached Figure Description

[0027] Figure 1 This is a SEM image of the pectin-coated volcanic rock oral abrasive loaded with Heilongjiang Saussurea extract in Example 3.

[0028] Figure 2 The DLS particle size distribution diagram of the pectin-coated volcanic rock oral abrasive loaded with Heilongjiang Saussurea extract in Example 3 is shown. Detailed Implementation

[0029] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be understood that the following embodiments are for illustrative purposes only and are not intended to limit the scope of protection of the present invention. Equivalent substitutions or modifications made by those skilled in the art in terms of specific structural forms, process parameters, etc., without departing from the spirit and essence of the present invention, should all fall within the scope of protection of the present invention.

[0030] A pectin-coated volcanic rock oral abrasive loaded with Heilongjiang chamomile extract comprises the following parts by weight: 100 parts volcanic rock particles, 0.5-5 parts Heilongjiang chamomile extract, 1-15 parts calcium pectin, and 0.2-2 parts additives; wherein the volcanic rock particles are coated with calcium pectin, and the Heilongjiang chamomile extract is uniformly dispersed in the pores of the volcanic rock and in the calcium pectin.

[0031] In one possible embodiment, the chemical composition of the volcanic rock particles comprises: SiO2 65-75 wt%, Al2O3 10-15 wt%, Fe2O3 2-5 wt%, K2O+Na2O 5-8 wt%, CaO+MgO 2-5 wt%; the median particle size D50 of the volcanic rock particles is 5-30 μm, D90 is not greater than 50 μm, and the specific surface area is 15-40 m². 2 / g.

[0032] In one possible embodiment, the extract of *Saussurea involucrata* is an ethanol extract; the extract contains at least one active ingredient selected from agarin A, agarin B, cynarin, salicylolitin, apigenin, luteolin, and chlorogenic acid.

[0033] In one possible embodiment, calcium pectin is a combination of low-ester pectin and soluble calcium salt.

[0034] In one possible embodiment, the degree of esterification of the low-ester pectin is 20-50%; the mass fraction of the soluble calcium salt is 0.01-0.5 wt% of the low-ester pectin, and the soluble calcium salt is one or more combinations of calcium lactate, calcium gluconate or calcium chloride.

[0035] In one possible embodiment, the adjuvant is one or more combinations of humectants, foaming agents, sweeteners, preservatives, fragrances, or colorants.

[0036] A pectin-coated volcanic rock oral abrasive loaded with Heilongjiang Saussurea extract includes the following steps: Step 1: Preparation of Heilongjiang Saussurea extract: Take dried roots and inflorescences of Heilongjiang Saussurea, pulverize them through a 40-mesh sieve; weigh 100 parts, add 10 times their weight of food-grade ethanol, soak for 1-4 hours, then heat under reflux for 1-6 hours, filter; concentrate under reduced pressure at 50℃ to recover ethanol, concentrate until no alcohol odor remains, and continue concentrating until the relative density at 60℃ is 1.10-1.15 g / cm³. 3 Extract of Heilongjiang Saussurea involucrata was obtained; Step 2, Slurry preparation: Dissolve the extract of Henjiang Saussurea involucrata and low-ester pectin in an appropriate amount of deionized water at 40℃, and stir until a mixed solution is formed. Then add soluble calcium salt and continue stirring for 5-20 minutes. Add volcanic rock particles and disperse them at a stirring speed of 300-600 rpm for 10-25 minutes to ensure that the volcanic rock particles are evenly dispersed in the mixed solution. Add the additives and continue stirring for 5-10 minutes to obtain the slurry. Step 3, Spray molding: Add the slurry to the atomizing molding equipment, with an atomization pressure of 0.2-0.5MPa and an outlet air temperature of 95-110℃. Pass it through an 80-120 mesh sieve to obtain oral abrasive.

[0037] Example 1.

[0038] A pectin-coated volcanic rock oral abrasive loaded with Heilongjiang Saussurea extract is composed of the following components in parts by mass: 100 parts volcanic rock particles, 0.5 parts Heilongjiang Saussurea extract, 1 part calcium pectin (the degree of esterification of low-ester pectin is 20%; the mass fraction of soluble calcium salt is 0.01% of low-ester pectin, and the soluble calcium salt is specifically calcium lactate), and the auxiliary agents are a combination of humectant, foaming agent, sweetener, preservative and fragrance, with a total of 0.2 parts auxiliary agents.

[0039] A method for preparing pectin-coated volcanic rock oral abrasive loaded with Heilongjiang Saussurea extract includes the following steps: Step 1: Take dried roots and inflorescences of *Saussurea involucrata* from Longjiang, pulverize them through a 40-mesh sieve, weigh 100 portions, add 10 times the amount of food-grade ethanol, soak for 1 hour, then heat under reflux for 1 hour, filter; concentrate under reduced pressure at 50℃ to recover ethanol, and continue concentrating until the ethanol is basically removed until the relative density is approximately 1.15 g / cm³. 3 (60℃) to obtain Henjiang Saussurea extract, for later use; Step 2: Add the extract of Henjiang chamomile and low-ester pectin to deionized water at 40°C to dissolve them and form a uniform solution. Stir until a mixed gel solution is formed. Then add soluble calcium salt and continue stirring for 5 minutes. Add volcanic rock particles at a stirring speed of 300 rpm and disperse for 10 minutes to ensure that the volcanic rock particles are evenly dispersed in the mixed gel solution. Add the additives and continue stirring for 5 minutes to obtain a slurry for later use. Step 3: Add the slurry to the atomization molding equipment, with an atomization pressure of 0.2MPa and an outlet air temperature of 95℃, and pass it through a 120-mesh sieve to obtain oral abrasive.

[0040] The performance indicators of the oral abrasive in this embodiment are as follows: dentin abrasion value (RDA) 118, Streptococcus mutans cleaning rate 87.3%, and inhibition zone diameter 15.3 mm.

[0041] Example 2.

[0042] A pectin-coated volcanic rock oral abrasive loaded with Heilongjiang Saussurea extract is composed of the following components in parts by weight: 100 parts volcanic rock particles, 5 parts Heilongjiang Saussurea extract, 15 parts calcium pectin (the degree of esterification of low-ester pectin is 35%; the mass fraction of soluble calcium salt is 0.3 wt% of low-ester pectin, and the soluble calcium salt is specifically calcium gluconate), and the auxiliary agents are specifically a combination of humectants, foaming agents, sweeteners, preservatives, fragrances or colorants, with a total of 0.8 parts of auxiliary agents.

[0043] A method for preparing pectin-coated volcanic rock oral abrasive loaded with Heilongjiang Saussurea extract includes the following steps: Step 1: Take dried roots and inflorescences of *Saussurea involucrata* from Longjiang, pulverize them through a 40-mesh sieve, weigh 100 portions, add 10 times the amount of food-grade ethanol, soak for 4 hours, then heat under reflux for 6 hours, filter, and concentrate under reduced pressure at 50℃ to recover the ethanol. After the ethanol is basically removed, continue to concentrate until the relative density is approximately 1.10 g / cm³. 3 (60℃) to obtain Henjiang Saussurea extract, for later use; Step 2: Dissolve the extract of Henjiang chamomile and low-ester pectin in an appropriate amount of deionized water at 40°C and stir until a mixed solution is formed. Then add soluble calcium salt and continue stirring for 20 minutes. Add volcanic rock particles and disperse at a stirring speed of 600 rpm for 25 minutes to ensure that the volcanic rock particles are evenly dispersed in the mixed solution. Add the additives and continue stirring for 8 minutes to obtain a slurry for later use. Step 3: Add the slurry to the atomization molding equipment, with an atomization pressure of 0.5MPa and an outlet air temperature of 110℃, and pass it through an 80-mesh sieve to obtain oral abrasive.

[0044] The performance indicators of the oral abrasive in this embodiment are as follows: dentin abrasion value (RDA) 98, Streptococcus mutans cleaning rate 95.6%, and inhibition zone diameter 16.8 mm.

[0045] Example 3.

[0046] A pectin-coated volcanic rock oral abrasive loaded with Heilongjiang Saussurea extract is composed of the following components in parts by weight: 100 parts volcanic rock particles, 2 parts Heilongjiang Saussurea extract, 9 parts calcium pectin (the degree of esterification of low-ester pectin is 50%; the mass fraction of soluble calcium salt is 0.5 wt% of low-ester pectin, and the soluble calcium salt is specifically calcium chloride), and the auxiliary agents are specifically a combination of humectants, foaming agents, preservatives, fragrances or colorants, with a total of 1.2 parts auxiliary agents.

[0047] A method for preparing pectin-coated volcanic rock oral abrasive loaded with Heilongjiang Saussurea extract includes the following steps: Step 1: Take dried roots and inflorescences of *Saussurea involucrata* from Heilongjiang, pulverize them through a 40-mesh sieve, weigh 100 portions, add 10 times the amount of food-grade ethanol, soak for 2 hours, then heat under reflux for 5 hours, filter, and concentrate under reduced pressure at 50℃ to recover the ethanol. After the ethanol is basically removed, continue to concentrate until the relative density is approximately 1.11 g / cm³. 3 (60℃) to obtain Henjiang Saussurea extract, for later use; Step 2: Dissolve the extract of Henjiang Saussurea involucrata and low-ester pectin in an appropriate amount of deionized water at 40°C and stir until a mixed solution is formed. Then add soluble calcium salt and continue stirring for 15 minutes. Add volcanic rock particles and disperse them at a stirring speed of 500 rpm for 20 minutes to ensure that the volcanic rock particles are evenly dispersed in the mixed solution. Add the additives and continue stirring for 10 minutes to obtain a slurry for later use. Step 3: Add the slurry to the atomization molding equipment, with an atomization pressure of 0.4MPa and an outlet air temperature of 100℃, and pass it through a 100-mesh sieve to obtain oral abrasive.

[0048] The performance indicators of the oral abrasive in this embodiment are as follows: dentin abrasion value (RDA) 102, Streptococcus mutans cleaning rate 93.6%, and inhibition zone diameter 15.8 mm.

[0049] Comparative Example 1.

[0050] Comparative abrasives were obtained by combining Heilongjiang Saussurea extract with calcium pectin, volcanic rock with calcium pectin, and Heilongjiang Saussurea extract with volcanic rock, respectively, according to the preparation steps and addition ratios of Example 1.

[0051] The test results are as follows: *Hemiberlesia lingua* extract with pectin calcium abrasive: dentin abrasion value (RDA) 24, *Streptococcus mutans* cleanliness rate 75.9%, inhibition zone diameter 10.3 mm; volcanic rock with pectin calcium abrasive: dentin abrasion value (RDA) 127, *Streptococcus mutans* cleanliness rate 85.3%, inhibition zone diameter 9.8 mm; *Hemiberlesia lingua* extract with volcanic rock abrasive: dentin abrasion value (RDA) 198, *Streptococcus mutans* cleanliness rate 87.7%, inhibition zone diameter 12.5 mm.

[0052] Comparative Example 2.

[0053] Comparative abrasives were obtained by combining Heilongjiang Saussurea extract with calcium pectin, volcanic rock with calcium pectin, and Heilongjiang Saussurea extract with volcanic rock, respectively, according to the steps and addition ratios of Example 2.

[0054] The test results are as follows: *Heteropogon spp. extract with pectin calcium abrasive: dentin abrasion value (RDA) 22, *Streptococcus mutans* cleanliness rate 77.0%, inhibition zone diameter 10.9 mm; volcanic rock with pectin calcium abrasive: dentin abrasion value (RDA) 135, *Streptococcus mutans* cleanliness rate 86.1%, inhibition zone diameter 10.0 mm; *Heteropogon spp. extract with volcanic rock abrasive: dentin abrasion value (RDA) 192, *Streptococcus mutans* cleanliness rate 89.3%, inhibition zone diameter 11.6 mm.

[0055] Comparative Example 3.

[0056] Comparative abrasives were obtained by combining Heilongjiang Saussurea extract with calcium pectin, volcanic rock with calcium pectin, and Heilongjiang Saussurea extract with volcanic rock, respectively, according to the three steps and addition ratios of Example 3.

[0057] The test results are as follows: *Heteropogon spp. extract with pectin calcium abrasive: dentin abrasion value (RDA) 26, *Streptococcus mutans* cleanliness rate 81.2%, inhibition zone diameter 9.2 mm; volcanic rock with pectin calcium abrasive: dentin abrasion value (RDA) 117, *Streptococcus mutans* cleanliness rate 83.2%, inhibition zone diameter 9.6 mm; *Heteropogon spp. extract with volcanic rock abrasive: dentin abrasion value (RDA) 187, *Streptococcus mutans* cleanliness rate 83.5%, inhibition zone diameter 13.2 mm.

[0058] Comparing the test results of Henjiang Saussurea extract and pectin calcium abrasive in the comparative example with the test results of Henjiang Saussurea extract and pectin calcium and volcanic rock abrasive in the example, the addition of volcanic rock not only enhances the dentin abrasive value and the cleaning rate of Streptococcus mutans, but also synergistically enhances the antibacterial effect.

[0059] Comparing the test results of volcanic rock and pectin calcium abrasive in the comparative example with the test results of Henjiang chamomile extract, pectin calcium, and volcanic rock abrasive in the example, the addition of Henjiang chamomile extract not only enhanced its antibacterial effect and the cleaning rate of Streptococcus mutans, but also synergistically reduced the dentin abrasion value, ensuring that the teeth would not be damaged under a reasonable dentin abrasion value.

[0060] Comparing the test results of Heilongjiang chrysanthemum extract and volcanic rock abrasive in the comparative example with the test results of Heilongjiang chrysanthemum extract, pectin calcium, and volcanic rock abrasive in the example, the addition of pectin calcium coated the hard volcanic rock particles, reduced the dentin abrasion value, and stabilized the release of Heilongjiang chrysanthemum extract, enhancing the antibacterial effect and the cleaning rate of Streptococcus mutans.

[0061] The results show that, through a specific raw material composition, each ingredient not only plays its own role but also has a unique synergistic effect, resulting in a final oral abrasive with a low dentin abrasion value and good antibacterial properties. All the ingredients are indispensable and cannot be obtained through simple ingredient substitution. The raw material design and preparation process of this invention achieve a balance between the cleaning performance and low-damage properties of the oral abrasive, demonstrating its practical application value.

[0062] In summary, this invention has successfully developed a pectin-coated volcanic rock oral abrasive loaded with Heilongjiang chrysanthemum extract. This oral abrasive not only solves the contradiction between excessive damage to teeth, oral mucosa, and tongue caused by traditional oral abrasives and cleaning efficiency, but also achieves the integration of traditional medical theory and modern technology through environmentally friendly formula design, which has important industrial application value and promising prospects for technology promotion.

Claims

1. A pectin-coated volcanic rock oral abrasive loaded with Heilongjiang chrysanthemum extract, characterized in that, The product comprises the following components by weight: 100 parts volcanic rock particles, 0.5-5 parts Henjiang Saussurea extract, 1-15 parts calcium pectin, and 0.2-2 parts additives.

2. The oral abrasive according to claim 1, characterized in that, The chemical composition of the volcanic rock particles includes: SiO2 65-75 wt%, Al2O3 10-15 wt%, Fe2O3 2-5 wt%, K2O+Na2O 5-8 wt%, CaO+MgO 2-5 wt%; the median particle size D50 of the volcanic rock particles is 5-30 μm, D90 is not greater than 50 μm, and the specific surface area is 15-40 m². 2 / g.

3. The oral abrasive according to claim 1, characterized in that, The extract of *Hemiberlesia lingua* is an ethanol extract; the extract contains at least one active ingredient selected from agarin A, agarin B, cynarin, salicylolitin, apigenin, luteolin, and chlorogenic acid.

4. The oral abrasive according to claim 1, characterized in that, The pectin calcium is a combination of low-ester pectin and soluble calcium salt.

5. The oral abrasive according to claim 1, characterized in that, The degree of esterification of the low-ester pectin is 20-50%; the mass fraction of the soluble calcium salt is 0.01-0.5 wt% of the low-ester pectin, and the soluble calcium salt is one or more combinations of calcium lactate, calcium gluconate, or calcium chloride.

6. The oral abrasive according to claim 1, characterized in that, The additives are one or more combinations of humectants, foaming agents, sweeteners, preservatives, fragrances, or colorants.

7. The preparation process of the dental abrasive according to claim 1, characterized in that, Includes the following steps: Step 1: Preparation of Heilongjiang Saussurea extract; Step 2, Slurry preparation; Step 3: Spray molding.

8. The preparation process of the dental abrasive according to claim 7, characterized in that, Step 1 specifically involves: taking dried roots and inflorescences of *Chrysanthemum indicum* from Longjiang, pulverizing them through a 40-mesh sieve; weighing 100 portions, adding 10 times their weight of food-grade ethanol, soaking for 1-4 hours, then heating under reflux to extract for 1-6 hours, filtering; concentrating under reduced pressure at 50°C to recover ethanol, concentrating until no alcohol odor remains, and then continuing to concentrate until the relative density at 60°C is 1.10-1.15 g / cm³. 3 Extract of Heilongjiang Saussurea involucrata was obtained.

9. The preparation process of the dental abrasive according to claim 7, characterized in that, Step 2 specifically involves dissolving Henjiang chamomile extract and low-ester pectin in an appropriate amount of deionized water at 40°C, stirring until a mixed solution is formed, then adding soluble calcium salt and stirring for 5-20 minutes, adding volcanic rock particles and dispersing them at a stirring speed of 300-600 rpm for 10-25 minutes to ensure that the volcanic rock particles are evenly dispersed in the mixed solution, adding additives and stirring for 5-10 minutes to obtain a slurry.

10. The preparation process of the dental abrasive according to claim 7, characterized in that, Step 3 specifically involves adding the slurry to an atomization molding device with an atomization pressure of 0.2-0.5 MPa and an outlet air temperature of 95-110°C, and passing it through an 80-120 mesh sieve to obtain oral abrasive.

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