Composition capable of removing body odor of old people as well as preparation method and application of composition

Abstract

The invention belongs to the technical field of odor removers, and particularly relates to a composition capable of removing body odor of old people as well as a preparation method and application of the composition. The agilawood extract, the folium artemisiae argyi extract, the tea tree essential oil, the peppermint essential oil, the citric acid and the water are combined, the agilawood extract has unique fragrance and can effectively decompose and neutralize peculiar smell molecules, and the body odor of old people is eliminated from the source; the folium artemisiae argyi extract is beneficial to improving the skin microbial environment and reducing peculiar smell; the tea tree essential oil and the mint essential oil can make people feel more relaxed, and the fresh smell of the product is enhanced. Therefore, the composition provided by the invention not only is favorable for removing the body odor of the old people, but also is mild and non-irritant to the skin of the old people, green and safe.

Description

Technical Field

[0001] The invention belongs to the technical field of odor removers, and particularly relates to a composition capable of removing body odor of the elderly, and a preparation method and application thereof. Background Art

[0002] As people age, their body functions decline, their metabolism slows down, and their skin oil secretion and microbial flora change. As a result, the body produces more ω-7 unsaturated fatty acids, which are oxidized and degraded to form 2-nonenal, which in turn forms body odor. This body odor not only has a negative impact on the mental health and social life of the elderly themselves, but also brings inconvenience to their families and people around them.

[0003] There are many human body deodorant products on the market. For example, Chinese patent CN 110664711 B discloses a skin conditioning type female antiperspirant body lotion, which forms an invisible anti-perspirant isolation layer on the skin surface after application by combining skin conditioners, antiperspirants, moisturizers, solubilizers and solvents, achieving a long-lasting antiperspirant and anti-odor effect. It can be seen that the existing human body deodorant products mainly cover up the odor by adding chemical fragrances, which not only cannot solve the problem from the root, but also may cause damage to people's sensitive skin due to the presence of irritating chemical ingredients. In addition, there are no reports of related products specifically used to remove the smell of the elderly in the prior art. Summary of the invention

[0004] The purpose of the present invention is to provide a composition for removing body odor of the elderly, a preparation method thereof and an application thereof, which is green, safe and has good deodorizing effect.

[0005] The invention provides a composition for removing body odor of the elderly. The raw materials of the composition include: agarwood extract, wormwood extract, tea tree essential oil, peppermint essential oil, citric acid and water.

[0006] Preferably, each 100 mL of the composition contains: 5-10 g of agarwood extract, 3-8 g of wormwood extract, 2-5 mL of tea tree essential oil, 1-3 mL of peppermint essential oil, 0.5-1 g of citric acid and the remainder of water.

[0007] The present invention provides a method for preparing the composition described in the above technical solution, comprising the following steps:

[0008] The crushed agarwood raw material is subjected to supercritical carbon dioxide extraction to obtain an agarwood extract;

[0009] The dried wormwood leaf is sequentially crushed, refluxed and concentrated under reduced pressure to obtain a wormwood leaf extract;

[0010] After dissolving citric acid in water, the agarwood extract, the wormwood extract, tea tree essential oil and peppermint essential oil are added to the mixed solution in sequence, mixed evenly and filtered to obtain the composition.

[0011] Preferably, the parameters of the supercritical carbon dioxide extraction include: pressure of 20-30 MPa, temperature of 40-50° C., and time of 2-3 h.

[0012] Preferably, the reflux extraction is performed with an ethanol solution having a volume concentration of 70%-80%;

[0013] The volume mass ratio of the ethanol solution to the crushed mugwort leaf is 10 mL: 1-3 g;

[0014] The parameters of the reflux extraction include: temperature of 60-70° C., number of times of 2-3 times, and time of 1-2 h / time.

[0015] Preferably, the particle size of the crushed agarwood raw material is 80-100 mesh.

[0016] Preferably, the filtration is performed using a microporous filter membrane of 0.22-0.45 μm.

[0017] The present invention provides the use of the composition described in the above technical solution in removing odor and / or preparing odor removing products.

[0018] Preferably, the removing of odor includes: removing body odor of the elderly.

[0019] The present invention provides a spray for removing body odor of the elderly, comprising the composition described in the above technical solution.

[0020] Beneficial effects:

[0021] The present invention provides a composition for removing body odor of the elderly, and the composition comprises the following raw materials: agarwood extract, wormwood extract, tea tree essential oil, peppermint essential oil, citric acid and water. The agarwood extract of the present invention is rich in vitamins and minerals, which is beneficial to maintaining the nutritional balance of the body. It has a unique fragrance and antibacterial and antibacterial effects, and can effectively decompose and neutralize odor molecules to eliminate the body odor of the elderly from the root; the wormwood extract is beneficial to relieving fatigue and improving the body's immunity. It has the effects of sterilization, disinfection and insect repellent, can improve the skin microbial environment, and reduce the generation of odor; tea tree essential oil has a good anti-inflammatory and bactericidal effect, and peppermint essential oil can improve sleep quality and make people feel more relaxed. At the same time, it can enhance the fresh smell of the product and make the user feel more comfortable. Therefore, after the above raw materials are mixed, it is not only beneficial to remove the body odor of the elderly, but also mild and non-irritating to the skin of the elderly. Green and safe.

[0022] Based on the above technical advantages, the present invention also provides a method for preparing a composition for removing the body odor of the elderly. By using supercritical carbon dioxide to extract the agarwood raw material and reflux extraction of mugwort, it is beneficial to fully precipitate the effective ingredients therein, and then after being fully mixed with tea tree essential oil and peppermint essential oil, it can effectively release its efficacy and remove the body odor of the elderly. DETAILED DESCRIPTION

[0023] In the present invention, unless otherwise specified, the reagents, equipment and methods used are all conventionally selected.

[0024] In order to further illustrate the present invention, the scheme provided by the present invention is described in detail below in conjunction with embodiments, but they should not be understood as limiting the protection scope of the present invention.

[0025] Example 1

[0026] A method for preparing a composition for removing body odor of the elderly, comprising the following steps:

[0027] (1) A composition for removing body odor of the elderly: 8 g of agarwood extract, 5 g of wormwood extract, 3 mL of tea tree essential oil, 2 mL of peppermint essential oil, and 0.8 g of citric acid are taken, and deionized water is added to 100 mL.

[0028] (2) Preparation method:

[0029] The agarwood (Oleoresina Aquilariae thymelaeaceae) raw material was crushed into 80 meshes, and extracted by supercritical carbon dioxide extraction, wherein the extraction pressure was set to 25 MPa, the extraction temperature was 45°C, and the extraction time was 2.5 h to obtain the agarwood extract;

[0030] After the dried Artemisiae Argyi leaves were crushed, an ethanol solution with a volume fraction of 75% was used as a solvent (the mass volume ratio of the crushed Artemisiae Argyi leaves to the ethanol solution was 2g:10mL), and reflux extraction was performed at a temperature of 65°C for 3 times, each time for 1.5h, and then the extracts were combined and concentrated under reduced pressure to obtain the Artemisiae Argyi leaf extract;

[0031] Mixing and preparation: under a sterile environment, add deionized water into the reactor, start stirring, slowly add citric acid, and stir until completely dissolved; then add agarwood extract, wormwood extract, tea tree essential oil and peppermint essential oil in sequence, and continue stirring for 30-60 minutes to fully mix the ingredients to obtain a mixed solution;

[0032] Filtration and filling: Filter the mixed solution through a 0.22 μm microporous filter membrane to remove possible impurities and microorganisms, and then fill the filtrate into a disinfected spray bottle to obtain a finished agarwood spray (i.e., a composition that has the function of removing body odor of the elderly).

[0033] Example 2

[0034] A method for preparing a composition for removing body odor of the elderly, comprising the following steps:

[0035] (1) A composition for removing body odor of the elderly: 6 g of agarwood extract, 6 g of wormwood extract, 4 mL of tea tree essential oil, 1.5 mL of peppermint essential oil, and 0.6 g of citric acid were taken, and deionized water was added to 100 mL.

[0036] (2) Preparation method:

[0037] The agarwood (Oleoresina Aquilariae thymelaeaceae) raw material was crushed into 80 meshes, and extracted by supercritical carbon dioxide extraction, wherein the extraction pressure was set to 25 MPa, the extraction temperature was 45°C, and the extraction time was 2.5 h to obtain the agarwood extract;

[0038] After the dried Artemisiae Argyi leaves were crushed, an ethanol solution with a volume fraction of 75% was used as a solvent (the mass volume ratio of the crushed Artemisiae Argyi leaves to the ethanol solution was 1 g: 10 mL), and reflux extraction was performed at a temperature of 65°C for 3 times, each time for 1.5 hours, and then the extracts were combined and concentrated under reduced pressure to obtain the Artemisiae Argyi leaf extract;

[0039] Mixing and preparation: under a sterile environment, add deionized water into the reactor, start stirring, slowly add citric acid, and stir until completely dissolved; then add agarwood extract, wormwood extract, tea tree essential oil and peppermint essential oil in sequence, and continue stirring for 30-60 minutes to fully mix the ingredients to obtain a mixed solution;

[0040] Filtration and filling: Filter the mixed solution through a 0.22 μm microporous filter membrane to remove possible impurities and microorganisms, and then fill the filtrate into a disinfected spray bottle to obtain a finished agarwood spray (i.e., a composition that has the function of removing body odor of the elderly).

[0041] Example 3

[0042] A method for preparing a composition for removing body odor of the elderly, comprising the following steps:

[0043] (1) A composition for removing body odor of the elderly: 8 g of agarwood extract, 5 g of wormwood extract, 3 mL of tea tree essential oil, 2 mL of peppermint essential oil, and 0.8 g of citric acid are taken, and deionized water is added to 100 mL.

[0044] (2) Preparation method:

[0045] The agarwood (Oleoresina Aquilariae thymelaeaceae) raw material was crushed into 80 meshes, and extracted by supercritical carbon dioxide extraction, wherein the extraction pressure was set to 22MPa, the extraction temperature was 42°C, and the extraction time was 2h to obtain the agarwood extract;

[0046] After the dried Artemisiae Argyi leaves were crushed, an ethanol solution with a volume fraction of 72% was used as a solvent (the mass volume ratio of the crushed Artemisiae Argyi leaves to the ethanol solution was 3g:10mL), and reflux extraction was performed at a temperature of 62°C for 2 times, each time for 1 hour, and then the extracts were combined and concentrated under reduced pressure to obtain the Artemisiae Argyi leaf extract;

[0047] Mixing and preparation: under a sterile environment, add deionized water into the reactor, start stirring, slowly add citric acid, and stir until completely dissolved; then add agarwood extract, wormwood extract, tea tree essential oil and peppermint essential oil in sequence, and continue stirring for 30-60 minutes to fully mix the ingredients to obtain a mixed solution;

[0048] Filtration and filling: Filter the mixed solution through a 0.22 μm microporous filter membrane to remove possible impurities and microorganisms, and then fill the filtrate into a disinfected spray bottle to obtain a finished agarwood spray (i.e., a composition that has the function of removing body odor of the elderly).

[0049] Example 4

[0050] A method for preparing a composition for removing body odor of the elderly, comprising the following steps:

[0051] (1) A composition for removing body odor of the elderly: 6 g of agarwood extract, 6 g of wormwood extract, 4 mL of tea tree essential oil, 1.5 mL of peppermint essential oil, and 0.6 g of citric acid were taken, and deionized water was added to 100 mL.

[0052] (2) Preparation method:

[0053] The agarwood (Oleoresina Aquilariae thymelaeaceae) raw material was crushed into 80 meshes, and extracted by supercritical carbon dioxide extraction, wherein the extraction pressure was set to 22MPa, the extraction temperature was 42°C, and the extraction time was 2h to obtain the agarwood extract;

[0054] After the dried Artemisiae Argyi leaves were crushed, an ethanol solution with a volume fraction of 72% was used as a solvent (the mass volume ratio of the crushed Artemisiae Argyi leaves to the ethanol solution was 2g:10mL), and reflux extraction was performed at a temperature of 62°C for 2 times, each time for 1 hour, and then the extracts were combined and concentrated under reduced pressure to obtain the Artemisiae Argyi leaf extract;

[0055] Mixing and preparation: under a sterile environment, add deionized water into the reactor, start stirring, slowly add citric acid, and stir until completely dissolved; then add agarwood extract, wormwood extract, tea tree essential oil and peppermint essential oil in sequence, and continue stirring for 30-60 minutes to fully mix the ingredients to obtain a mixed solution;

[0056] Filtration and filling: Filter the mixed solution through a 0.22 μm microporous filter membrane to remove possible impurities and microorganisms, and then fill the filtrate into a disinfected spray bottle to obtain a finished agarwood spray (i.e., a composition that has the function of removing body odor of the elderly).

[0057] Comparative Example 1

[0058] A method for preparing a composition for removing body odor of the elderly, comprising the following steps:

[0059] (1) A composition for removing body odor of the elderly: 15 g of agarwood extract, 1 g of wormwood extract, 5 mL of tea tree essential oil, 0.8 g of citric acid, and deionized water were added to 100 mL.

[0060] (2) Preparation method:

[0061] The agarwood (Oleoresina Aquilariae thymelaeaceae) raw material was crushed into 80 meshes, and extracted by supercritical carbon dioxide extraction, wherein the extraction pressure was set to 25 MPa, the extraction temperature was 45°C, and the extraction time was 2.5 h to obtain the agarwood extract;

[0062] After the dried Artemisiae Argyi leaves were crushed, an ethanol solution with a volume fraction of 75% was used as a solvent (the mass volume ratio of the crushed Artemisiae Argyi leaves to the ethanol solution was 2g:10mL), and reflux extraction was performed at a temperature of 65°C for 3 times, each time for 1.5h, and then the extracts were combined and concentrated under reduced pressure to obtain the Artemisiae Argyi leaf extract;

[0063] Mixing and preparation: under a sterile environment, add deionized water into the reactor, start stirring, slowly add citric acid, and stir until completely dissolved; then add agarwood extract, wormwood extract and tea tree essential oil in sequence, and continue stirring for 30-60 minutes to fully mix the ingredients to obtain a mixed solution;

[0064] Filtration and filling: Filter the mixed solution through a 0.22 μm microporous filter membrane to remove possible impurities and microorganisms, and then fill the filtrate into a disinfected spray bottle to obtain a finished agarwood spray (i.e., a composition that has the function of removing body odor of the elderly).

[0065] Comparative Example 2

[0066] A method for preparing a composition for removing body odor of the elderly, comprising the following steps:

[0067] (1) A composition for removing body odor of the elderly: 8 g of agarwood extract, 5 g of wormwood extract, 3 mL of tea tree essential oil, 2 mL of peppermint essential oil, and 0.8 g of citric acid are taken, and deionized water is added to 100 mL.

[0068] (2) Preparation method:

[0069] The agarwood (Oleoresina Aquilariae thymelaeaceae) raw material was crushed into 120 meshes, and extracted by supercritical carbon dioxide extraction, wherein the extraction pressure was set to 15 MPa, the extraction temperature was 55° C., and the extraction time was 3.5 h to obtain the agarwood extract;

[0070] After the dried Artemisiae Argyi leaves were crushed, an ethanol solution with a volume fraction of 75% was used as a solvent (the mass volume ratio of the crushed Artemisiae Argyi leaves to the ethanol solution was 5 g: 10 mL), and reflux extraction was performed at a temperature of 65°C for 3 times, each time for 1.5 hours, and then the extracts were combined and concentrated under reduced pressure to obtain the Artemisiae Argyi leaf extract;

[0071] Mixing and preparation: under a sterile environment, add deionized water into the reactor, start stirring, slowly add citric acid, and stir until completely dissolved; then add agarwood extract, wormwood extract, tea tree essential oil and peppermint essential oil in sequence, and continue stirring for 30-60 minutes to fully mix the ingredients to obtain a mixed solution;

[0072] Filtration and filling: Filter the mixed solution through a 0.22 μm microporous filter membrane to remove possible impurities and microorganisms, and then fill the filtrate into a disinfected spray bottle to obtain a finished agarwood spray (i.e., a composition that has the function of removing body odor of the elderly).

[0073] Comparative Example 3

[0074] A method for preparing a composition for removing body odor of the elderly, comprising the following steps:

[0075] (1) A composition for removing body odor of the elderly: 8 g of agarwood extract, 5 g of wormwood extract, 3 mL of tea tree essential oil, 2 mL of peppermint essential oil, and 0.8 g of citric acid are taken, and deionized water is added to 100 mL.

[0076] (2) Preparation method:

[0077] The agarwood (Oleoresina Aquilariae thymelaeaceae) raw material was crushed into 80 meshes, and extracted by supercritical carbon dioxide extraction, wherein the extraction pressure was set to 25 MPa, the extraction temperature was 45°C, and the extraction time was 2.5 h to obtain the agarwood extract;

[0078] After the dried Artemisiae Argyi leaves were crushed, an ethanol solution with a volume fraction of 85% was used as a solvent (the mass volume ratio of the crushed Artemisiae Argyi leaves to the ethanol solution was 2g:10mL), and reflux extraction was performed at a temperature of 75°C for 3 times, each time for 2.5h, and then the extracts were combined and concentrated under reduced pressure to obtain the Artemisiae Argyi leaf extract;

[0079] Mixing and preparation: under a sterile environment, add deionized water into the reactor, start stirring, slowly add citric acid, and stir until completely dissolved; then add agarwood extract, wormwood extract, tea tree essential oil and peppermint essential oil in sequence, and continue stirring for 30-60 minutes to fully mix the ingredients to obtain a mixed solution;

[0080] Filtration and filling: Filter the mixed solution through a 0.22 μm microporous filter membrane to remove possible impurities and microorganisms, and then fill the filtrate into a disinfected spray bottle to obtain a finished agarwood spray (i.e., a composition that has the function of removing body odor of the elderly).

[0081] Comparative Example 4

[0082] A method for preparing a composition for removing body odor of the elderly, comprising the following steps:

[0083] (1) A composition for removing body odor of the elderly: 8 g of agarwood extract, 5 g of wormwood extract, 3 mL of tea tree essential oil, 2 mL of peppermint essential oil, and 0.8 g of citric acid are taken, and deionized water is added to 100 mL.

[0084] (2) Preparation method:

[0085] The agarwood (Oleoresina Aquilariae thymelaeaceae) raw material was crushed into 80 meshes, and extracted by supercritical carbon dioxide extraction, wherein the extraction pressure was set to 25 MPa, the extraction temperature was 45°C, and the extraction time was 2.5 h to obtain the agarwood extract;

[0086] After the dried Artemisiae Argyi leaves were crushed, an ethanol solution with a volume fraction of 75% was used as a solvent (the mass volume ratio of the crushed Artemisiae Argyi leaves to the ethanol solution was 2g:10mL), and reflux extraction was performed at a temperature of 65°C for 3 times, each time for 1.5h, and then the extracts were combined and concentrated under reduced pressure to obtain the Artemisiae Argyi leaf extract;

[0087] Mixing and preparation: under a sterile environment, add agarwood extract, wormwood extract, tea tree essential oil, peppermint essential oil and citric acid to water in sequence, and continue stirring to fully mix the ingredients to obtain a mixed solution;

[0088] Filtration and filling: Filter the mixed solution through a 0.22 μm microporous filter membrane to remove possible impurities and microorganisms, and then fill the filtrate into a disinfected spray bottle to obtain a finished agarwood spray (i.e., a composition that has the function of removing body odor of the elderly).

[0089] Comparative Example 5

[0090] A method for preparing a composition for removing body odor of the elderly, comprising the following steps:

[0091] (1) A composition for removing body odor of the elderly: 8 mL of agarwood essential oil, 5 mL of wormwood essential oil, 3 mL of tea tree essential oil, 2 mL of peppermint essential oil, and 0.8 g of citric acid are taken, and deionized water is added to 100 mL.

[0092] (2) Preparation method:

[0093] Mixing and preparation: under a sterile environment, add deionized water into the reactor, start stirring, slowly add citric acid, and stir until completely dissolved; then add the conventionally purchased agarwood essential oil, conventionally purchased wormwood essential oil, tea tree essential oil and peppermint essential oil in turn, and continue stirring for 30-60 minutes to fully mix the ingredients to obtain a mixed solution;

[0094] Filtration and filling: Filter the mixed solution through a 0.22 μm microporous filter membrane to remove possible impurities and microorganisms, and then fill the filtrate into a disinfected spray bottle to obtain a finished agarwood spray (i.e., a composition that has the function of removing body odor of the elderly).

[0095] Application Example 1

[0096] Underwear of the elderly was collected, and the concentration of 2-nonenal in the clothes extract was detected to be 55 ng / mg. The above clothes were cut into 10 pieces of cloth in a size of 10 cm×10 cm, and the compositions in Examples 1-4 and Comparative 1-5 were sprayed on different cloths, 1 mL each time, once a day, for 2 days, and an equal amount of clean water was used as a blank control; the treated cloths were placed in a separate and identical closed environment; after 2 days, the concentration of 2-nonenal in each cloth was detected, and the results are shown in Table 1.

[0097] Table 1 Concentration of 2-nonenal in different treatments

[0098] deal with Concentration (ng / mg) Example 1 5.5 Example 2 6 Example 3 6.2 Example 4 5.8 Comparative Example 1 15 Comparative Example 2 19.5 Comparative Example 3 17.6 Comparative Example 4 18.7 Comparative Example 5 16.6 Blank control 35.8

[0099] Combined with the data in Table 1, it can be seen that compared with the blank control and the solutions in Comparative Examples 1-5, the composition prepared by Examples 1-4 can significantly reduce the concentration of 2-nonenal, that is, the composition provided by the present invention can significantly degrade human body odor, especially the effect of degrading 2-nonenal is obvious.

[0100] Application Example 2

[0101] According to the results of Application Example 1, the compositions prepared in Examples 1 and 4 were selected for safety testing; 6 healthy rabbits with substantially the same weight were selected, and the hair on the left and right sides of the spine of the rabbits' backs were removed without damaging the skin, and the hair removal areas on the left and right sides were 3 cm×3 cm respectively. After hair removal, the rabbits were raised in the same environment for 24 hours, and when no abnormalities were found, the rabbits were evenly divided into 2 groups;

[0102] The compositions prepared in Example 1 and Example 4 were used as test objects. 1 mL of each composition was taken and directly applied to the hair removal area on the left side of the rabbit. The hair removal area on the right side of the same rabbit was used as a blank control. The application was performed once a day for 7 consecutive days. After application, the application site was observed with the naked eye every day and the presence of erythema and edema was recorded. The results are shown in Table 2.

[0103] Table 2 Safety performance test results of different treatments

[0104]

[0105]

[0106] Combined with the data in Table 2, it can be seen that the compositions prepared in Examples 1 and 4 are all combinations made using natural raw materials, so after 7 days of use, there is no erythema and edema on the skin, which shows that the composition provided by the present invention is mild to the skin, non-irritating, and has high safety performance.

[0107] Application Example 3

[0108] Two elderly volunteers aged about 70 were selected. Due to their limited mobility, the smell of old people (2-nonenal) in the room was relatively strong. The composition prepared in Example 1 was taken to improve the smell of the living environment of the elderly: the composition prepared in Example 1 was prepared into a spray, and 50 mL was sprayed on the environment where the elderly lived every day, twice a day; at the same time, each elderly person sprayed 10 mL every day, sprayed twice a day, and sprayed continuously for 14 days.

[0109] After 14 days, there was no obvious old smell in the room, the air was relatively fresh, and the old smell on the elderly was significantly reduced. It can be seen that the composition for removing old smell prepared by the present invention can significantly decompose the body odor of the elderly and improve the happiness of the elderly.

[0110] In summary, agarwood extract is rich in vitamins and minerals, which is beneficial to maintaining the body's nutritional balance. It has a unique aroma and antibacterial and antibacterial effects, and can effectively decompose and neutralize odor molecules, eliminating the body odor of the elderly from the root; wormwood extract is beneficial to relieve fatigue and improve the body's immunity. It has the effects of sterilization, disinfection and insect repellent, can improve the skin microbial environment, and reduce odor generation; tea tree essential oil has a good anti-inflammatory and bactericidal effect, and peppermint essential oil can improve sleep quality and make people feel more relaxed. At the same time, it can enhance the fresh smell of the product and make users feel more comfortable. Therefore, after mixing the above raw materials, it is not only beneficial to remove the body odor of the elderly, but also mild and non-irritating to the skin of the elderly. Green and safe.

[0111] Although the above embodiment describes the present invention in detail, it is only a part of the embodiments of the present invention, not all of the embodiments. People can also obtain other embodiments based on this embodiment without creativity, and these embodiments all fall within the protection scope of the present invention.

Claims

1. A composition for removing body odor of the elderly, characterized in that: The raw materials of the composition include: agarwood extract, wormwood extract, tea tree essential oil, peppermint essential oil, citric acid and water.

2. The composition according to claim 1, characterized in that Each 100 mL of the composition contains: 5-10 g of agarwood extract, 3-8 g of wormwood extract, 2-5 mL of tea tree essential oil, 1-3 mL of peppermint essential oil, 0.5-1 g of citric acid and the balance of water.

3. The method for preparing the composition according to claim 1 or 2, characterized in that: The steps include: The crushed agarwood raw material is subjected to supercritical carbon dioxide extraction to obtain an agarwood extract; The dried wormwood leaf is sequentially crushed, refluxed and concentrated under reduced pressure to obtain a wormwood leaf extract; After dissolving citric acid in water, the agarwood extract, the wormwood extract, tea tree essential oil and peppermint essential oil are added to the mixed solution in sequence, mixed evenly and filtered to obtain the composition.

4. The preparation method according to claim 3, characterized in that: The parameters of the supercritical carbon dioxide extraction include: pressure of 20-30 MPa, temperature of 40-50° C., and time of 2-3 h.

5. The preparation method according to claim 3, characterized in that: The reflux extraction is carried out with an ethanol solution having a volume concentration of 70%-80%; The volume mass ratio of the ethanol solution to the crushed mugwort leaf is 10 mL: 1-3 g; The parameters of the reflux extraction include: temperature of 60-70° C., number of times of 2-3 times, and time of 1-2 h / time.

6. The preparation method according to claim 3, characterized in that: The particle size of the crushed agarwood raw material is 80-100 mesh.

7. The preparation method according to claim 3, characterized in that: The filtration is performed using a 0.22-0.45 μm microporous filter membrane.

8. Use of the composition according to claim 1 or 2 in removing odor and / or preparing odor removing products.

9. The use according to claim 8, characterized in that: The odor removal includes: removing the body odor of the elderly.

10. A spray for removing body odor of the elderly, characterized in that: The invention comprises the composition according to claim 1 or 2.

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