Chitosan modified nanocellulose composite plant type bacteriostatic deodorant
By using the composite technology of chitosan modified nanocellulose and plant extracts in plant deodorants, the problems of insufficient deodorization and antibacterial performance of existing deodorants are solved, and efficient, low-cost, environmentally friendly deodorization and antibacterial effects are achieved.
Patent Information
- Application Number
- CN202411232735.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-04
- Publication Date
- 2025-05-16
AI Technical Summary
The existing plant-type deodorants have shortcomings in deodorization effect and antibacterial properties, and are costly, which affects their wide application.
The composite technology of chitosan-modified nanocellulose and plant extracts is adopted to improve the deodorization and antibacterial effect through the synergistic effect of the active groups of nanocellulose and the plant antibacterial components, and to improve the stability and antibacterial properties of the material through chemical modification.
It significantly improves the deodorization and antibacterial properties of deodorants, extends service life, reduces costs, is harmless to the environment and human health, and has green and environmentally friendly characteristics.
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Abstract
Description
Technical Field
[0001] The invention relates to the technical field of deodorant production, and in particular to a chitosan-modified nanocellulose composite plant-type antibacterial deodorant. Background Art
[0002] With the rapid development of society, environmental pollution and human health problems caused by the stench from sewage, domestic garbage, livestock and poultry farming have become increasingly prominent. Using deodorants to deodorize is an effective way to eliminate odor pollution. As an environmentally friendly product, deodorants are of great significance to improving the living environment, improving people's health level and quality of life. Plant compound deodorants refer to deodorants made from natural plant extracts or natural plant extracts as the main raw materials, compounded with other green and environmentally friendly effective substances. The deodorization mechanism of plant compound deodorants is the result of the combined action of chemical, physical and biological processes. The active ingredients in plants can react chemically with volatile odor molecules, or they can bind odor molecules through adsorption, absorption, dissolution and other methods to achieve a deodorizing effect. Certain components in plant extracts can inhibit the growth of microorganisms and reduce the activity of microorganisms in decomposing organic matter, thereby reducing the generation and emission of odor.
[0003] Plant-based deodorants are divided into three forms according to their odor treatment characteristics: 1. Masking type. A large number of plant-based human deodorants on the market and some industrial plant-based deodorants are of this type. They generally use various natural plant essences (such as lavender, rose, lemon, clove, etc.) as raw materials to cover up the odor with fragrance, so that the human sense of smell cannot sense the existence of the odor. However, air fresheners do not belong to this type. Air fresheners generally use chemically synthesized essences.
[0004] 2. Decomposition type, which is produced by using the principle of natural plants' adsorption and decomposition of various odor molecules, such as: aloe vera absorbs and decomposes formaldehyde; yucca absorbs and decomposes sulfur dioxide and ammonia; camellia absorbs and decomposes benzene and cresol; ginkgo leaves absorb and decompose hydrogen sulfide; tea polyphenols absorb and decompose ammonia and organic amines, etc. This type of plant-based deodorant generally does not have a strong fragrance. It fundamentally decomposes odorous gases and truly and effectively purifies the environment.
[0005] 3. Comprehensive type, that is, adding some plant essences on the basis of the decomposition type, producing a pleasant fragrance while decomposing the odor molecules. This type of product is more acceptable to general consumers, especially household consumers. Summary of the invention
[0006] The object of the present invention is to provide a chitosan-modified nanocellulose composite plant-based antibacterial deodorant, which can continuously remove odors, inhibit bacteria, keep the air fresh and is green, environmentally friendly and low in cost.
[0007] The technical solution adopted by the present invention to solve its technical problem is: A chitosan-modified nanocellulose composite plant-based antibacterial deodorant comprises, in parts by weight, 100 parts by weight of raw materials: 0.4 to 8 parts of green tea extract, 0.4 to 8 parts of ginger extract, 0.2 to 4 parts of peppermint extract, 0.2 to 4 parts of licorice extract, 0.2 to 4 parts of camellia extract, 0.2 to 4 parts of lemon extract, 0.2 to 4 parts of perilla extract, 0.2 to 4 parts of gentian extract, 0.2 to 4 parts of ascorbic acid, 0.05 to 2 parts of vanillin, 1 to 6 parts of chitosan-modified nanocellulose, 0.08 to 1.2 parts of a surfactant, and the balance of deionized water.
[0008] Preferably, the raw material composition of 100 parts by weight is as follows: 0.6 to 6 parts of green tea extract, 0.6 to 6 parts of ginger extract, 0.3 to 3 parts of peppermint extract, 0.3 to 3 parts of licorice extract, 0.3 to 3 parts of camellia extract, 0.3 to 3 parts of lemon extract, 0.3 to 3 parts of perilla extract, 0.3 to 3 parts of gentian extract, 0.3 to 3 parts of ascorbic acid, 0.1 to 1 parts of vanillin, 2 to 5 parts of chitosan-modified nanocellulose, 0.1 to 1 parts of surfactant, and the balance of deionized water.
[0009] Adding chitosan-modified nanocellulose to plant deodorants can further improve the antibacterial and deodorizing properties of deodorants. First, the surface of nanocellulose has relatively abundant active groups, which can synergize with plant antibacterial components to improve the antibacterial effect and extend the service life of the deodorant. Second, nanocellulose has high stability and dispersibility, which can improve the stability and uniformity of plant antibacterial deodorants, making them less likely to precipitate and separate during storage and use. Third, nanocellulose has good air permeability, which can improve the air permeability of plant antibacterial deodorants, making it easier to penetrate into the source of odor and better play the deodorizing effect. Fourth, nanocellulose has a large specific surface area and adsorption performance, which can be chemically combined with chitosan to give the material excellent antibacterial properties and improve the adsorption of plant antibacterial deodorants, so that it can better adsorb and remove odors. At the same time, compared with chitosan physically mixed with nanocellulose, chitosan chemically modified grafted nanocellulose can not destroy the antibacterial components in the subsequent cleaning process, and can better play the antibacterial and deodorizing effect. Fifth, nanocellulose and chitosan are both derived from nature and are biodegradable. In short, adding chitosan-modified nanocellulose to plant antibacterial deodorants can significantly improve the performance and effect of the product, and is harmless to the environment and human health.
[0010] Ascorbic acid is an antioxidant and has a certain antiseptic property; vanillin can mainly react with ammonia and has a certain deodorizing effect. The plant extract combination of the present invention has an excellent deodorizing function.
[0011] The surfactant is one of potassium lauroyl glycinate, sodium cocoyl methyl taurate, sodium lauroyl alanine and saponin powder.
[0012] The specific preparation method of the chitosan-modified nanocellulose is as follows: Add nanocellulose to an impregnation solution containing citric acid and sodium hypophosphite, and immerse at 60°C to 85°C for 1h to 2h; Subsequently, carboxymethyl chitosan or silanized chitosan or chitosan quaternary ammonium salt is added to the impregnation solution, and stirred evenly, and then impregnated for 1h~2h at 60℃~85℃, and then dried in an oven at 100℃~120℃ to constant weight, and then heat cured in an oven at 140℃~160℃ for 2min~5min, and then thoroughly washed with deionized water, and finally freeze-dried. Citric acid acts as a crosslinking agent, and sodium hypophosphite acts as a catalyst. The mass percentage of nanocellulose (dry weight) in the impregnation solution is 1-6%.
[0013] The mass concentration of citric acid in the impregnation solution is 10%~30%, and the mass concentration of sodium hypophosphite is 3%~10%.
[0014] In the impregnation solution, the mass concentration of carboxymethyl chitosan or silanized chitosan or chitosan quaternary ammonium salt is 2% to 10%.
[0015] The preparation method is as follows: (1) Add green tea extract, ginger extract, mint extract, licorice extract, camellia extract, lemon extract, perilla extract, and gentian extract into a container and stir to dissolve at 30-50°C; (2) Add ascorbic acid and vanillin into a container and stir to dissolve at 45-65°C; (3) Cooling to 30-50°C, adding chitosan-modified nanocellulose and surfactant into a container, and stirring evenly to obtain a chitosan-modified nanocellulose composite plant-based antibacterial deodorant.
[0016] The beneficial effects of the present invention are as follows: the plant extract mixture used in the present invention contains a variety of organic acids, alkaloids, polysaccharides, aldehydes, ketones, terpenoids and other compounds, contains a variety of active functional groups, can react with odor molecules, and has a deodorizing effect. The chitosan-modified nanocellulose used in the present invention has excellent antibacterial properties and good biocompatibility and environmental friendliness. The raw materials of the present invention are widely available, the preparation method is simple, the cost is low, the deodorizing and antibacterial effects are good, the use is convenient, the human body is harmless, there is no secondary pollution, and it is green and environmentally friendly. DETAILED DESCRIPTION
[0017] The technical solution of the present invention is further described in detail below through specific embodiments.
[0018] In the present invention, unless otherwise specified, the raw materials and equipment used can be purchased from the market or are commonly used in the art. The methods in the following embodiments, unless otherwise specified, are all conventional methods in the art.
[0019] Green tea extract, ginger extract, peppermint extract, licorice extract, camellia extract, lemon extract, perilla extract, and gentian extract were purchased from Guangzhou Baiyu Biotechnology Co., Ltd.
[0020] Example 1 A chitosan-modified nanocellulose composite plant-based antibacterial deodorant, comprising the following raw materials in parts by weight: 0.4 parts of green tea extract, 0.4 parts of ginger extract, 0.2 parts of peppermint extract, 0.2 parts of licorice extract, 0.2 parts of camellia extract, 0.2 parts of lemon extract, 0.2 parts of perilla extract, 0.2 parts of gentian extract, 0.2 parts of ascorbic acid, 0.05 parts of vanillin, 1 part of chitosan-modified nanocellulose, 0.08 parts of a surfactant (potassium lauroyl glycinate), and 96.67 parts of deionized water.
[0021] The specific preparation method of the chitosan-modified nanocellulose is as follows: The nanocellulose was added into an impregnation solution containing 10 wt % citric acid and 3 wt % sodium hypophosphite until the concentration of the nanocellulose was 1 wt %, and the mixture was immersed at 60° C. for 2 h. Subsequently, silanized chitosan was added to the impregnation solution to a concentration of 2 wt %, and stirred evenly. It was immersed at 60 °C for 2 h, then dried in an oven at 100 °C to constant weight, then thermally cured in an oven at 140 °C for 5 min, and then thoroughly washed with deionized water and finally freeze-dried.
[0022] Chitosan modified nanocellulose composite plant-based antibacterial deodorant, the preparation method is as follows: (1) Add green tea extract, ginger extract, mint extract, licorice extract, camellia extract, lemon extract, perilla extract, and gentian extract into a container and stir to dissolve at 35°C; (2) Add ascorbic acid and vanillin into a container and stir to dissolve at 45°C; (3) Cooling to 35° C., adding chitosan-modified nanocellulose and a surfactant into a container, and stirring evenly to obtain a chitosan-modified nanocellulose composite plant-based antibacterial deodorant.
[0023] Example 2 A chitosan-modified nanocellulose composite plant-based antibacterial deodorant, comprising the following raw materials in parts by weight: 8 parts of green tea extract, 8 parts of ginger extract, 4 parts of peppermint extract, 4 parts of licorice extract, 4 parts of camellia extract, 4 parts of lemon extract, 4 parts of perilla extract, 4 parts of gentian extract, 4 parts of ascorbic acid, 2 parts of vanillin, 6 parts of chitosan-modified nanocellulose, 1.2 parts of a surfactant (sodium cocoyl methyl taurate), and 46.8 parts of deionized water.
[0024] The specific preparation method of the chitosan-modified nanocellulose is as follows: Add nanocellulose to an impregnation solution containing 30 wt % citric acid and 10 wt % sodium hypophosphite until the concentration of nanocellulose is 6 wt %, and immerse at 85° C. for 1 h; Subsequently, carboxymethyl chitosan was added to the impregnation solution to a concentration of 10 wt %, and stirred evenly. The mixture was immersed at 85 ° C for 1 h, and then dried in an oven at 120 ° C to constant weight. Then, the mixture was thermally cured in an oven at 160 ° C for 2 min, and then thoroughly washed with deionized water and finally freeze-dried.
[0025] Chitosan modified nanocellulose composite plant-based antibacterial deodorant, the preparation method is as follows: (1) Add green tea extract, ginger extract, mint extract, licorice extract, camellia extract, lemon extract, perilla extract, and gentian extract into a container and stir to dissolve at 50°C; (2) Add ascorbic acid and vanillin into a container and stir to dissolve at 65°C; (3) Cooling to 50° C., adding chitosan-modified nanocellulose and a surfactant into a container, and stirring evenly to obtain a chitosan-modified nanocellulose composite plant-based antibacterial deodorant.
[0026] Example 3 A chitosan-modified nanocellulose composite plant-based antibacterial deodorant comprises the following raw materials in parts by weight: 3 parts of green tea extract, 3 parts of ginger extract, 2 parts of peppermint extract, 2 parts of licorice extract, 2 parts of camellia extract, 1.5 parts of lemon extract, 1.5 parts of perilla extract, 1.5 parts of gentian extract, 0.5 parts of ascorbic acid, 2 parts of vanillin, 5 parts of chitosan-modified nanocellulose, 1 part of saponin powder (a surfactant), and 75 parts of deionized water.
[0027] The specific preparation method of the chitosan-modified nanocellulose is as follows: The nanocellulose was added into an impregnation solution containing 20 wt % citric acid and 5 wt % sodium hypophosphite until the concentration of the nanocellulose was 3 wt %, and the mixture was impregnated at 70° C. for 1.5 h. Subsequently, carboxymethyl chitosan was added to the impregnation solution to a concentration of 5wt%, and stirred evenly. It was immersed at 70°C for 1.5 h, then dried in an oven at 110°C to constant weight, then thermally cured in an oven at 150°C for 3 min, and then thoroughly washed with deionized water and finally freeze-dried.
[0028] Chitosan modified nanocellulose composite plant-based antibacterial deodorant, the preparation method is as follows: (1) Add green tea extract, ginger extract, mint extract, licorice extract, camellia extract, lemon extract, perilla extract, and gentian extract into a container and stir to dissolve at 30°C; (2) Add ascorbic acid and vanillin into a container and stir to dissolve at 60°C; (3) Cooling to 30° C., adding chitosan-modified nanocellulose and a surfactant into a container, and stirring evenly to obtain a chitosan-modified nanocellulose composite plant-based antibacterial deodorant.
[0029] Example 4 A chitosan-modified nanocellulose composite plant-based antibacterial deodorant comprises the following raw materials in parts by weight: 4 parts of green tea extract, 4 parts of ginger extract, 2 parts of peppermint extract, 2 parts of licorice extract, 2 parts of camellia extract, 2 parts of lemon extract, 1.5 parts of perilla extract, 1.5 parts of gentian extract, 0.5 parts of ascorbic acid, 2 parts of vanillin, 5 parts of chitosan-modified nanocellulose, 1 part of sodium lauroyl alanine, a surfactant, and 72.5 parts of deionized water.
[0030] The specific preparation method of the chitosan-modified nanocellulose is as follows: The nanocellulose was added into an impregnation solution containing 20 wt % citric acid and 5 wt % sodium hypophosphite until the concentration of the nanocellulose was 3 wt %, and the mixture was impregnated at 70° C. for 1.5 h. Subsequently, chitosan quaternary ammonium salt (commercially available) was added to the impregnation solution to a concentration of 5wt%, and stirred evenly. It was immersed at 70°C for 1.5 h, then dried in an oven at 110°C to constant weight, and then thermally cured in an oven at 150°C for 3 min, and then thoroughly washed with deionized water and finally freeze-dried.
[0031] Chitosan modified nanocellulose composite plant-based antibacterial deodorant, the preparation method is as follows: (1) Add green tea extract, ginger extract, mint extract, licorice extract, camellia extract, lemon extract, perilla extract, and gentian extract into a container and stir to dissolve at 30°C; (2) Add ascorbic acid and vanillin into a container and stir to dissolve at 60°C; (3) Cooling to 30° C., adding chitosan-modified nanocellulose and a surfactant into a container, and stirring evenly to obtain a chitosan-modified nanocellulose composite plant-based antibacterial deodorant.
[0032] Example 5 A chitosan-modified nanocellulose composite plant-based antibacterial deodorant comprises the following raw materials in parts by weight: 1 part of green tea extract, 1 part of ginger extract, 1.5 parts of peppermint extract, 1.5 parts of licorice extract, 0.5 parts of camellia extract, 0.5 parts of lemon extract, 2 parts of perilla extract, 2 parts of gentian extract, 1 part of ascorbic acid, 1 part of vanillin, 5 parts of chitosan-modified nanocellulose, 1 part of saponin powder (a surfactant), and 82 parts of deionized water.
[0033] The specific preparation method of the chitosan-modified nanocellulose is as follows: The nanocellulose was added into an impregnation solution containing 20 wt % citric acid and 5 wt % sodium hypophosphite until the concentration of the nanocellulose was 3 wt %, and the mixture was impregnated at 70° C. for 1.5 h. Subsequently, chitosan quaternary ammonium salt (commercially available) was added to the impregnation solution to a concentration of 5wt%, and stirred evenly. It was immersed at 70°C for 1.5 h, then dried in an oven at 110°C to constant weight, and then thermally cured in an oven at 150°C for 3 min, and then thoroughly washed with deionized water and finally freeze-dried.
[0034] Chitosan modified nanocellulose composite plant-based antibacterial deodorant, the preparation method is as follows: (1) Add green tea extract, ginger extract, mint extract, licorice extract, camellia extract, lemon extract, perilla extract, and gentian extract into a container and stir to dissolve at 30°C; (2) Add ascorbic acid and vanillin into a container and stir to dissolve at 60°C; (3) Cooling to 30° C., adding chitosan-modified nanocellulose and a surfactant into a container, and stirring evenly to obtain a chitosan-modified nanocellulose composite plant-based antibacterial deodorant.
[0035] Comparative Example 1 A nanocellulose composite plant-based antibacterial deodorant, comprising the following raw materials by weight: 1 part of green tea extract, 1 part of ginger extract, 0.5 part of peppermint extract, 0.5 part of licorice extract, 0.5 part of camellia extract, 0.5 part of lemon extract, 0.5 part of perilla extract, 0.5 part of gentian extract, 0.2 part of ascorbic acid, 0.2 part of vanillin, 5 parts of nanocellulose, 1 part of surfactant saponin powder, and 88.6 parts of deionized water.
[0036] The method for preparing the nanocellulose composite plant-based antibacterial deodorant comprises the following steps: Add green tea, ginger, mint, licorice, camellia, lemon, perilla, and gentian extracts into a container, heat to 30°C, and stir evenly to dissolve for 10 minutes.
[0037] Add ascorbic acid and vanillin into a container, heat to 60°C and stir to dissolve for 10 minutes.
[0038] The temperature was lowered to 30° C., nanocellulose and surfactant were added into the container, and the mixture was uniformly stirred and dissolved for 10 minutes to obtain a nanocellulose composite plant-based antibacterial deodorant.
[0039] Comparative Example 2 A nanocellulose composite plant-based antibacterial deodorant, comprising the following raw materials by weight: 1 part of green tea extract, 1 part of ginger extract, 0.5 part of peppermint extract, 0.5 part of licorice extract, 0.5 part of camellia extract, 0.5 part of lemon extract, 0.5 part of perilla extract, 0.5 part of gentian extract, 0.2 part of ascorbic acid, 0.2 part of vanillin, 2 parts of nanocellulose, 3 parts of carboxymethyl chitosan, 1 part of saponin powder, a surfactant, and 88.6 parts of deionized water.
[0040] The method for preparing the nanocellulose composite plant-based antibacterial deodorant comprises the following steps: Add green tea, ginger, mint, licorice, camellia, lemon, perilla, and gentian extracts into a container, heat to 30°C, and stir evenly to dissolve for 10 minutes.
[0041] Add ascorbic acid and vanillin into a container, heat to 60°C and stir to dissolve for 10 minutes.
[0042] The temperature was lowered to 30° C., nanocellulose, carboxymethyl chitosan, and surfactant were added into the container, and stirred evenly for 10 minutes to dissolve, thereby obtaining a nanocellulose composite plant-based antibacterial deodorant.
[0043] Table 1 Deodorization performance of chitosan-modified nanocellulose composite plant-based antibacterial deodorant prepared in Examples 3-5 (tested according to GB / T 33610.2-2017 Determination of deodorization performance of textiles Part 2: Inspection tube method) Table 2 Antibacterial rate of chitosan-modified nanocellulose composite plant-based antibacterial deodorant prepared in Examples 3-5 (test basis: GB 15979-2024 Hygiene requirements for disposable sanitary products) Test microorganism bacteria: Staphylococcus aureus ATCC 6538.
[0044] Through the data analysis of each embodiment and the blank group in the table, it can be known that the chitosan-modified nanocellulose composite plant-based antibacterial deodorant of the present invention has excellent deodorizing performance, and at the same time has a good inhibitory effect on bacteria and fungi, and the antibacterial performance retention rate after washing is good.
[0045] The above-described embodiment is only a preferred solution of the present invention and does not limit the present invention in any form. There are other variations and modifications without exceeding the technical solution described in the claims.
Claims
1. A chitosan-modified nanocellulose composite plant-based antibacterial deodorant, characterized in that: In parts by weight, 100 parts by weight of the raw materials are composed of: 0.4 to 8 parts of green tea extract, 0.4 to 8 parts of ginger extract, 0.2 to 4 parts of peppermint extract, 0.2 to 4 parts of licorice extract, 0.2 to 4 parts of camellia extract, 0.2 to 4 parts of lemon extract, 0.2 to 4 parts of perilla extract, 0.2 to 4 parts of gentian extract, 0.2 to 4 parts of ascorbic acid, 0.05 to 2 parts of vanillin, 1 to 6 parts of chitosan-modified nanocellulose, 0.08 to 1.2 parts of surfactant, and the balance of deionized water.
2. A chitosan-modified nanocellulose composite plant-based antibacterial deodorant according to claim 1, characterized in that: In parts by weight, 100 parts by weight of the raw materials are composed of: 0.6 to 6 parts of green tea extract, 0.6 to 6 parts of ginger extract, 0.3 to 3 parts of peppermint extract, 0.3 to 3 parts of licorice extract, 0.3 to 3 parts of camellia extract, 0.3 to 3 parts of lemon extract, 0.3 to 3 parts of perilla extract, 0.3 to 3 parts of gentian extract, 0.3 to 3 parts of ascorbic acid, 0.1 to 1 parts of vanillin, 2 to 5 parts of chitosan-modified nanocellulose, 0.1 to 1 parts of surfactant, and the balance of deionized water.
3. A chitosan-modified nanocellulose composite plant-based antibacterial deodorant according to claim 1 or 2, characterized in that: The surfactant is one of potassium lauroyl glycinate, sodium cocoyl methyl taurate, sodium lauroyl alanine and saponin powder.
4. A chitosan-modified nanocellulose composite plant-based antibacterial deodorant according to claim 1 or 2, characterized in that: The specific preparation method of the chitosan-modified nanocellulose is as follows: Add nanocellulose to an impregnation solution containing citric acid and sodium hypophosphite, and immerse at 60°C to 85°C for 1h to 2h; Subsequently, carboxymethyl chitosan or silanized chitosan or chitosan quaternary ammonium salt is added to the impregnation solution and stirred evenly, and then immersed at 60°C~85°C for 1h~2h, and then dried in an oven at 100°C~120°C to constant weight, followed by thermal curing in an oven at 140°C~160°C for 2min~5min, and then thoroughly washed with deionized water and finally freeze-dried.
5. The chitosan-modified nanocellulose composite plant-based antibacterial deodorant according to claim 4, characterized in that: The mass concentration of citric acid in the impregnation solution is 10%~30%, and the mass concentration of sodium hypophosphite is 3%~10%.
6. The chitosan-modified nanocellulose composite plant-based antibacterial deodorant according to claim 4, characterized in that: In the impregnation solution, the mass concentration of carboxymethyl chitosan or silanized chitosan or chitosan quaternary ammonium salt is 2% to 10%.
7. A chitosan-modified nanocellulose composite plant-based antibacterial deodorant according to claim 1 or 2, characterized in that: The preparation method is as follows: (1) Add green tea extract, ginger extract, mint extract, licorice extract, camellia extract, lemon extract, perilla extract, and gentian extract into a container and stir to dissolve at 30-50°C; (2) Add ascorbic acid and vanillin into a container and stir to dissolve at 45-65°C; (3) Cooling to 30-50°C, adding chitosan-modified nanocellulose and surfactant into a container, and stirring evenly to obtain a chitosan-modified nanocellulose composite plant-based antibacterial deodorant.