A pure plant extract residue remover that can rapidly degrade pesticide residues

Abstract

This invention discloses a pure plant extract residue cleaner that can rapidly degrade pesticide residues. It is made from the following plant materials in parts by weight: 15-25 parts of Sapindus mukorossi pericarp, 8-15 parts of Gleditsia sinensis thorns, 5-12 parts of Polygonum hydropiper, 3-10 parts of Artemisia argyi, 5-10 parts of Sophora flavescens, 3-8 parts of Cnidium monnieri, 3-8 parts of Stemona japonica, 4-10 parts of Chrysanthemum indicum, 2-6 parts of Mentha haplocalyx, and 5-10 parts of Houttuynia cordata. This pure plant extract residue cleaner, after dilution and soaking for 2-5 minutes, shows a degradation rate of over 50% for 13 pesticides and 100% for abamectin, significantly superior to water. The product is made from medicinal and edible plants, contains no chemical additives, is safe for ingestion, suitable for pregnant women and infants, is reusable, and causes no secondary pollution.

Description

Technical Field

[0001] This invention relates to the field of pesticide residue cleaning technology, specifically to a pure plant extract residue cleaner that can rapidly degrade pesticide residues. Background Technology

[0002] Currently, various chemical pesticides are widely used in fruit and vegetable cultivation to control pests and diseases, leading to increasingly prominent pesticide residue problems on the surface of fruits and vegetables. Common household cleaning methods include soaking and rinsing with water or ordinary dish soap. However, water has extremely limited ability to degrade pesticides that have penetrated the surface of fruits and vegetables or are fat-soluble; while chemical dish soap can remove some surface stains, the surfactants, fragrances, preservatives, and other ingredients it contains can easily form secondary residues on the surface of fruits and vegetables. Long-term contact may irritate human skin and may even enter the human body through the food chain, posing a significant food safety hazard.

[0003] Furthermore, technologies such as "antibacterial, disease-preventing, and insecticidal herbal fruit and vegetable nutrient solutions" have already been disclosed. These products focus on plant protection, disease prevention, and pest control during the crop growth period. Their main function is to improve crop health during the planting stage, but they do not have the function of rapidly and efficiently degrading pesticide residues already attached to the surface of fruits and vegetables in the post-harvest treatment stage. Therefore, there is an urgent need in the market and in household settings for the development of a fruit and vegetable cleaning product that is purely plant-based, fast-acting, safe and non-toxic, ingestible, and can significantly degrade various common pesticide residues to fill the existing technological gap.

[0004] The existing technology has the following main disadvantages:

[0005] First, soaking or rinsing with water has an extremely low removal rate for various fat-soluble or systemic pesticides (such as pyraclostrobin, difenoconazole, and cyhalothrin) already adhering to the surface of fruits and vegetables, making it impossible to meet safe consumption standards. While chemical detergents may remove some dirt, their chemical residues (such as surfactants and synthetic fragrances) are even more difficult to rinse off completely, causing new chemical pollution and posing a potential health threat to sensitive groups such as the elderly, pregnant women, and infants.

[0006] Second, the "Antibacterial, Disease-Preventing, and Insect-Killing Traditional Chinese Herbal Fruit and Vegetable Nutrient Solution," which has a similar formula to this invention, is designed to prevent pests and diseases and supplement nutrients through foliar spraying during crop growth. Its extraction process and formulation focus on enhancing plant immunity and antibacterial activity. This product has not been optimized in its formula or validated in its function for pesticide residues on the surface of harvested fruits and vegetables. It cannot achieve the technical effect of rapidly and significantly degrading pesticide residues within 1-5 minutes after harvesting, and therefore cannot meet the consumer demand for "safe entry" level cleaning products. Summary of the Invention

[0007] The purpose of this section is to outline some aspects of the embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the invention.

[0008] 1. Technical problems to be solved:

[0009] To address the issues mentioned above, such as the poor degradation effect of conventional cleaning methods and the risk of secondary pollution, and the limited functionality of existing herbal nutrient solutions that lack the ability to rapidly degrade pesticide residues, this invention is proposed.

[0010] Therefore, the purpose of this invention is to provide a pure plant extract residue remover that can rapidly degrade pesticide residues. After dilution and soaking for 2-5 minutes, the residue remover of this invention achieves a degradation rate of over 50% for 13 pesticides and 100% for abamectin, significantly superior to water. The product is made from medicinal and edible plants, contains no chemical additives, is safe for ingestion, suitable for pregnant women and infants, is reusable, and causes no secondary pollution.

[0011] 2. Technical Solution:

[0012] To address the aforementioned technical problems, according to one aspect of the present invention, the present invention provides the following technical solution:

[0013] A pure plant extract residue remover that can rapidly degrade pesticide residues is made from the following plant materials in parts by weight: 15-25 parts of Sapindus mukorossi pericarp, 8-15 parts of Gleditsia sinensis thorns, 5-12 parts of Polygonum hydropiper, 3-10 parts of Artemisia argyi, 5-10 parts of Sophora flavescens, 3-8 parts of Cnidium monnieri, 3-8 parts of Stemona japonica, 4-10 parts of Chrysanthemum indicum, 2-6 parts of Mentha haplocalyx, and 5-10 parts of Houttuynia cordata.

[0014] As a preferred embodiment of the method for preparing a pure plant extract for rapidly degrading pesticide residues according to the present invention, the plant raw materials are mixed in the indicated weight proportions, and then 8 to 12 times the weight of purified water is added. The mixture is extracted at 50 to 65°C for 2 to 4 hours, and then filtered to obtain an extract. The extract is inoculated with Lactobacillus plantarum or Lactobacillus acidophilus at 30 to 40°C and fermented for 12 to 24 hours, with an initial fermentation pH of 5.5 to 6.5. After fermentation, the mixture is filtered and sterilized.

[0015] In a preferred embodiment of the method for preparing a pure plant extract residue-removing liquid that can rapidly degrade pesticide residues according to the present invention, the mass ratio of Sapindus mukorossi pericarp to Gleditsia sinensis thorns is (1.5-2.5):1, and the total weight of Sapindus mukorossi pericarp and Gleditsia sinensis thorns accounts for 30-45% of the total weight of all plant raw materials.

[0016] In a preferred embodiment of the method for preparing a pure plant extract residue-removing liquid that can rapidly degrade pesticide residues according to the present invention, the mass ratio of Polygonum hydropiper to Artemisia argyi is (1.2-2):1, and the total weight of Polygonum hydropiper and Artemisia argyi accounts for 15-25% of the total weight of all plant raw materials.

[0017] As a preferred embodiment of the method for preparing a pure plant extract residue-removing liquid that can rapidly degrade pesticide residues according to the present invention, the mass ratio of Sophora flavescens to Cnidium monnieri is (1-1.5):1, and the total weight of Sophora flavescens and Cnidium monnieri accounts for 10-18% of the total weight of all plant raw materials.

[0018] In a preferred embodiment of the method for preparing a pure plant extract residue-removing liquid that can rapidly degrade pesticide residues according to the present invention, the mass ratio of wild chrysanthemum to mint is (1.5-2.5):1, and the total weight of wild chrysanthemum and mint accounts for 8-15% of the total weight of all plant raw materials.

[0019] As a preferred embodiment of the method for preparing a pure plant extract residue-removing liquid that can rapidly degrade pesticide residues according to the present invention, the extraction temperature is 55-60°C, the extraction time is 3 hours, and the mixture is stirred once every 30 minutes during the extraction process; the amount of purified water added is 10 times the mass.

[0020] As a preferred embodiment of the method for preparing a pure plant extract residue-removing liquid that can rapidly degrade pesticide residues according to the present invention, the fermentation temperature is 35±2℃, the fermentation time is 16 to 20 hours, and the pH is maintained at 5.8 to 6.2 during the fermentation process; the inoculation amount of Lactobacillus plantarum or Lactobacillus acidophilus is 1 to 3% of the volume of the extract liquid.

[0021] As a preferred embodiment of the method for preparing a pure plant extract residue-removing liquid that can rapidly degrade pesticide residues according to the present invention, the residue-removing liquid is in the form of a concentrated liquid with a pH value of 4.5 to 6.0 and a solid content of 5 to 15%; the concentrated liquid is stable when stored at room temperature and can be used for fruit and vegetable treatment after dilution.

[0022] As a preferred embodiment of the method for preparing a pure plant extract residue-removing liquid that can rapidly degrade pesticide residues according to the present invention, the concentrated liquid is diluted with water at a volume ratio of 1:10 to 1:20 to obtain a working solution; the working solution is used to soak or spray fruits and vegetables for 2 to 5 minutes, and the same batch of working solution can be reused for at least 3 subsequent fruit and vegetable treatments.

[0023] 3. Beneficial effects:

[0024] Compared with the prior art, the beneficial effects of the present invention are:

[0025] This invention, through a specific pure plant formulation and differentiated extraction and fermentation process, produces a purified residue solution that, after dilution at a 1:10 or 1:20 ratio, requires only 2-5 minutes of soaking to actively degrade up to 13 commonly used pesticides on mustard greens and celery. Experimental data shows that the degradation rate for various pesticides, including pyraclostrobin, difenoconazole, and thiamethoxam, consistently exceeds 50%, while the degradation rate for abamectin reaches 100%. In contrast, soaking in plain water for 5 minutes generally results in a degradation rate of less than 35% for most pesticides, and the effect is inconsistent. This invention solves the technical problem of the ineffective degradation of pesticide residues by plain water.

[0026] This invention uses honeysuckle, licorice, and sophora flavescens, which are both medicinal and edible plants, as raw materials. It contains no added chemical surfactants, oxidants, fragrances, or pigments, resulting in a safe and non-irritating finished product. Even small amounts of residue can be consumed directly, reaching an "ingestible" level, making it safe for pregnant women and infants. Furthermore, the residue-removing liquid can be reused for more than one month, avoiding skin irritation and secondary chemical residue problems associated with chemical cleaning agents. This fills the market gap for a "safe, efficient, and economical" pure plant-based residue-removing product. Detailed Implementation

[0027] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below.

[0028] The orientations or positional relationships indicated in the terminology are for the convenience of describing the invention and simplifying the description only, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as limiting the invention.

[0029] The term "connection method" should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0030] The embodiments of the present invention will now be described in further detail.

[0031] This invention provides an embodiment of a pure plant extract residue-removing liquid that can rapidly degrade pesticide residues, comprising:

[0032] This embodiment provides a pure plant extract residue remover that can rapidly degrade pesticide residues, made from the following plant materials in parts by weight: 15-25 parts of Sapindus mukorossi pericarp, 8-15 parts of Gleditsia sinensis thorns, 5-12 parts of Polygonum hydropiper, 3-10 parts of Artemisia argyi, 5-10 parts of Sophora flavescens, 3-8 parts of Cnidium monnieri, 3-8 parts of Stemona japonica, 4-10 parts of Chrysanthemum indicum, 2-6 parts of Mentha haplocalyx, and 5-10 parts of Houttuynia cordata.

[0033] It is worth noting that after mixing the plant materials by weight, add 8 to 12 times the weight of purified water, extract at 50 to 65°C for 2 to 4 hours, and filter to obtain the extract; inoculate the extract with Lactobacillus plantarum or Lactobacillus acidophilus at 30 to 40°C, ferment for 12 to 24 hours, with the initial fermentation pH being 5.5 to 6.5; after fermentation, filter and sterilize.

[0034] Next, the mass ratio of Sapindus mukorossi pericarp to Gleditsia sinensis thorns is (1.5-2.5):1, and the total weight of Sapindus mukorossi pericarp and Gleditsia sinensis thorns accounts for 30-45% of the total weight of all plant materials.

[0035] Meanwhile, the mass ratio of Polygonum hydropiper to Artemisia argyi is (1.2-2):1, and the total weight of Polygonum hydropiper and Artemisia argyi accounts for 15-25% of the total weight of all plant materials.

[0036] Furthermore, the mass ratio of Sophora flavescens to Cnidium monnieri is (1-1.5):1, and the total weight of Sophora flavescens and Cnidium monnieri accounts for 10-18% of the total weight of all plant materials.

[0037] Next, the mass ratio of wild chrysanthemum to mint is (1.5-2.5):1, and the total weight of wild chrysanthemum and mint accounts for 8-15% of the total weight of all plant materials.

[0038] Subsequently, the extraction temperature was 55–60°C, the extraction time was 3 hours, and the mixture was stirred every 30 minutes during the extraction process; the amount of purified water added was 10 times its mass.

[0039] Furthermore, the fermentation temperature was 35±2℃, the fermentation time was 16 to 20 hours, and the pH was maintained at 5.8 to 6.2 during the fermentation process; the inoculum amount of Lactobacillus plantarum or Lactobacillus acidophilus was 1 to 3% of the extract volume.

[0040] Next, the residual liquid is in the form of a concentrated solution with a pH value of 4.5 to 6.0 and a solid content of 5% to 15%. The concentrated solution is stable when stored at room temperature and can be used for fruit and vegetable treatment after dilution.

[0041] Finally, the concentrate is diluted with water at a volume ratio of 1:10 to 1:20 to obtain the working solution. The working solution is used to soak or spray fruits and vegetables for 2 to 5 minutes, and the same batch of working solution can be reused for at least 3 subsequent fruit and vegetable treatments.

[0042] Example 1:

[0043] Mustard greens: Take a plot of land for mustard greens, A.

[0044] Experimental Method 1: Immersion Method

[0045] On December 9, 2025 at 15:40, mustard samples were taken from plot A, numbered JC-CK.

[0046] At 16:10 on December 9, 2025, seven pesticides, namely pyraclostrobin, difenoconazole, abamectin, chlorfenapyr, dinotefuran, acetamiprid, and pyridaben, were sprayed on plot A of mustard greens.

[0047] On December 10, 2025, at 16:20, 14 kg of mustard greens were collected from plot A. The 14 kg sample was mixed thoroughly and divided into 7 equal portions: numbered JC-A1, JC-A2, JC-A3, JC-A4, JC-A5, JC-A6, and JC-A7. Four samples were further treated according to the following methods: no soaking, soaking only in water, soaking in a 1:10 nutrient solution, and soaking in a 1:20 nutrient solution.

[0048] After soaking in nutrient solution for different times (the volume of the soaking solution was always the same), the samples were tested according to GB23200.113 and GB23200.121 methods.

[0049]

[0050]

[0051] Summary: As shown in Table 2, the samples treated by the six different soaking methods all showed some degradation effect, but the degradation did not show a regular pattern.

[0052] Example 2

[0053] Test Method 2: Spraying

[0054] At 16:30 on December 10, 2025 (after sampling), the mustard plot A was divided into two plots, A-1 and A-2, and nutrient solution (1:15) was sprayed on plot A-2.

[0055] On December 11, 2025, at 16:30, 6 kg of samples were taken from plot A-1 and divided into three equal portions, numbered JC-A1-1, JC-A1-2, and JC-A1-3 respectively; 2 kg of samples were taken from plot A-2 and numbered JC-A1-4. The samples from plot A-1 were treated with different soaking methods, and all samples were tested according to GB23200.113 and GB23200.121 methods. Details are shown in Table 3 below.

[0056]

[0057]

[0058] Summary: Table 4 shows that spraying actually resulted in negative degradation. The specific reason is unknown, but it may be due to uneven spraying.

[0059] Celery: Take one plot of celery, plot B.

[0060] Experimental Method 1: Immersion Method

[0061] At 15:40 on December 9, 2025, a mustard green sample was taken from plot B of the celery field, numbered JC-CK.

[0062] At 16:10 on December 9, 2025, six pesticides, namely cyhalothrin, bifenthrin, thiamethoxam, imidacloprid, tebuconazole, and prochloraz, were sprayed on Celery Plot B.

[0063] On December 10, 2025, at 16:20, 14 kg of mustard greens were collected from Celery Plot B. The 14 kg sample was mixed thoroughly and divided into 7 equal portions: QC-B1, QC-B2, QC-B3, QC-B4, QC-B5, QC-B6, and QC-B7. Four samples were soaked for different times (without soaking, soaked only in water, soaked in a 1:10 nutrient solution, and soaked in a 1:20 nutrient solution, respectively) for different durations (the volume of the soaking solution was always the same). Testing was performed according to GB23200.113 and GB23200.121.

[0064]

[0065]

[0066] Summary: As can be seen from Table 6, for the samples treated by soaking, the degradation effect of cyhalothrin, bifenthrin, thiamethoxam, imidacloprid, tebuconazole, and prochloraz was the best when soaked in 1:10 nutrient solution for 5 minutes.

[0067] Test Method 2: Spraying

[0068] At 16:30 on December 10, 2025 (after sampling), the celery plot B was divided into two plots, B-1 and B-2, and nutrient solution (1:15) was sprayed on plot B-2.

[0069] On December 11, 2025, at 16:30, 6 kg of samples were taken from plot B-1 and divided into three equal portions, numbered QC-B1-1, QC-B1-2, and QC-B1-3 respectively; 2 kg of samples were taken from plot B-2 and numbered QC-B1-4. The samples from plot B-1 were treated with different soaking methods, and all samples were tested according to GB23200.113 and GB23200.121 methods. Details are shown in Table 7 below.

[0070]

[0071]

[0072] Summary: Table 8 shows that all samples treated by the three methods have a certain degradation effect, but the degradation effect of the nutrient solution is not obvious.

[0073] Based on the degradation rate calculations in Tables 2, 4, 6, and 8, the following pesticides were observed on mustard greens: pyraclostrobin, difenoconazole, abamectin, chlorfenapyr, dinotefuran, acetamiprid, and pyridaben; and on celery: cyhalothrin, bifenthrin, thiamethoxam, imidacloprid, tebuconazole, and prochloraz. Different sample treatment methods showed some effect on pesticide residue degradation, but the effect was not significant. The degree of degradation varied greatly among different pesticides after nutrient solution treatment, exhibiting irregular degradation patterns. The highest degradation rate did not exceed 55%, which was not much different from the effect of soaking in water. Some pesticides even showed negative degradation.

[0074] Although the present invention has been described above with reference to embodiments, various modifications can be made and components can be replaced with equivalents without departing from the scope of the invention. In particular, as long as there is no structural conflict, the features in the disclosed embodiments can be combined with each other in any manner. The lack of an exhaustive description of these combinations in this specification is merely for the sake of brevity and resource conservation. Therefore, the present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A pure plant extract residue remover that can rapidly degrade pesticide residues, characterized in that, It is made from the following plant materials in parts by weight: 15-25 parts of soapberry pericarp, 8-15 parts of soapberry thorns, 5-12 parts of Polygonum hydropiper, 3-10 parts of Artemisia argyi, 5-10 parts of Sophora flavescens, 3-8 parts of Cnidium monnieri, 3-8 parts of Stemona japonica, 4-10 parts of Chrysanthemum indicum, 2-6 parts of Mentha haplocalyx, and 5-10 parts of Houttuynia cordata.

2. The method for preparing the pure plant extract residue-removing liquid capable of rapidly degrading pesticide residues according to claim 1, characterized in that, After mixing the plant materials in the specified weight proportions, add 8 to 12 times the weight of purified water and extract at 50 to 65°C for 2 to 4 hours. Filter to obtain the extract. Inoculate the extract with Lactobacillus plantarum or Lactobacillus acidophilus at 30 to 40°C and ferment for 12 to 24 hours. The initial fermentation pH is 5.5 to 6.

5. After fermentation, filter and sterilize.

3. The method for preparing the pure plant extract residue-removing liquid capable of rapidly degrading pesticide residues according to claim 2, characterized in that, The mass ratio of Sapindus mukorossi pericarp to Gleditsia sinensis thorns is (1.5-2.5):1, and the total weight of Sapindus mukorossi pericarp and Gleditsia sinensis thorns accounts for 30-45% of the total weight of all plant materials.

4. The method for preparing the pure plant extract residue-removing liquid capable of rapidly degrading pesticide residues according to claim 3, characterized in that, The mass ratio of Polygonum hydropiper to Artemisia argyi is (1.2-2):1, and the total weight of Polygonum hydropiper and Artemisia argyi accounts for 15-25% of the total weight of all plant materials.

5. The method for preparing the pure plant extract residue-removing liquid capable of rapidly degrading pesticide residues according to claim 4, characterized in that, The mass ratio of Sophora flavescens to Cnidium monnieri is (1-1.5):1, and the total weight of Sophora flavescens and Cnidium monnieri accounts for 10-18% of the total weight of all plant materials.

6. The method for preparing the pure plant extract residue-removing liquid capable of rapidly degrading pesticide residues according to claim 5, characterized in that, The mass ratio of wild chrysanthemum to mint is (1.5-2.5):1, and the total weight of wild chrysanthemum and mint accounts for 8-15% of the total weight of all plant materials.

7. The method for preparing the pure plant extract residue-removing liquid capable of rapidly degrading pesticide residues according to claim 6, characterized in that, The extraction temperature is 55-60℃, the extraction time is 3 hours, and the mixture is stirred every 30 minutes during the extraction process; the amount of purified water added is 10 times its mass.

8. The method for preparing the pure plant extract residue-removing liquid capable of rapidly degrading pesticide residues according to claim 7, characterized in that, The fermentation temperature is 35±2℃, the fermentation time is 16 to 20 hours, and the pH is maintained at 5.8 to 6.2 during the fermentation process; the inoculum amount of Lactobacillus plantarum or Lactobacillus acidophilus is 1 to 3% of the volume of the extract.

9. The method for preparing the pure plant extract residue-removing liquid capable of rapidly degrading pesticide residues according to claim 8, characterized in that, The purified residual liquid is in the form of a concentrated solution with a pH value of 4.5 to 6.0 and a solid content of 5% to 15%. The concentrated solution is stable when stored at room temperature and can be used for fruit and vegetable treatment after dilution.

10. The method for preparing the pure plant extract residue-removing liquid capable of rapidly degrading pesticide residues according to claim 9, characterized in that, The concentrated solution is diluted with water at a volume ratio of 1:10 to 1:20 to obtain a working solution. The working solution is used to soak or spray fruits and vegetables for 2 to 5 minutes, and the same batch of working solution can be reused for at least 3 subsequent fruit and vegetable treatments.

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