CN111889043A - Preparation method of lemon essential oil microcapsules - Google Patents
Preparation method of lemon essential oil microcapsules Download PDFInfo
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- CN111889043A CN111889043A CN202010828170.4A CN202010828170A CN111889043A CN 111889043 A CN111889043 A CN 111889043A CN 202010828170 A CN202010828170 A CN 202010828170A CN 111889043 A CN111889043 A CN 111889043A
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- lemon
- essential oil
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- lemon essential
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- 235000005979 Citrus limon Nutrition 0.000 title claims abstract description 78
- 244000248349 Citrus limon Species 0.000 title claims abstract description 76
- 239000000341 volatile oil Substances 0.000 title claims abstract description 56
- 239000003094 microcapsule Substances 0.000 title claims abstract description 24
- 238000002360 preparation method Methods 0.000 title claims abstract description 6
- 238000000034 method Methods 0.000 claims abstract description 15
- IXPNQXFRVYWDDI-UHFFFAOYSA-N 1-methyl-2,4-dioxo-1,3-diazinane-5-carboximidamide Chemical compound CN1CC(C(N)=N)C(=O)NC1=O IXPNQXFRVYWDDI-UHFFFAOYSA-N 0.000 claims abstract description 14
- 235000010413 sodium alginate Nutrition 0.000 claims abstract description 14
- 239000000661 sodium alginate Substances 0.000 claims abstract description 14
- 229940005550 sodium alginate Drugs 0.000 claims abstract description 14
- 230000015271 coagulation Effects 0.000 claims abstract description 9
- 238000005345 coagulation Methods 0.000 claims abstract description 9
- 108010010803 Gelatin Proteins 0.000 claims abstract description 6
- 239000008273 gelatin Substances 0.000 claims abstract description 6
- 229920000159 gelatin Polymers 0.000 claims abstract description 6
- 235000019322 gelatine Nutrition 0.000 claims abstract description 6
- 235000011852 gelatine desserts Nutrition 0.000 claims abstract description 6
- 239000000243 solution Substances 0.000 claims description 37
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 22
- 238000003756 stirring Methods 0.000 claims description 19
- 239000002775 capsule Substances 0.000 claims description 15
- 238000005303 weighing Methods 0.000 claims description 13
- 239000011259 mixed solution Substances 0.000 claims description 12
- 239000012153 distilled water Substances 0.000 claims description 10
- 238000010438 heat treatment Methods 0.000 claims description 9
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 claims description 8
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 claims description 8
- 238000001035 drying Methods 0.000 claims description 8
- 239000000839 emulsion Substances 0.000 claims description 8
- 239000000203 mixture Substances 0.000 claims description 8
- 239000002245 particle Substances 0.000 claims description 7
- 239000011521 glass Substances 0.000 claims description 6
- UXVMQQNJUSDDNG-UHFFFAOYSA-L Calcium chloride Chemical compound [Cl-].[Cl-].[Ca+2] UXVMQQNJUSDDNG-UHFFFAOYSA-L 0.000 claims description 4
- SXRSQZLOMIGNAQ-UHFFFAOYSA-N Glutaraldehyde Chemical compound O=CCCCC=O SXRSQZLOMIGNAQ-UHFFFAOYSA-N 0.000 claims description 4
- 229960000583 acetic acid Drugs 0.000 claims description 4
- 239000001110 calcium chloride Substances 0.000 claims description 4
- 229910001628 calcium chloride Inorganic materials 0.000 claims description 4
- 238000001816 cooling Methods 0.000 claims description 4
- 238000004821 distillation Methods 0.000 claims description 4
- 239000012362 glacial acetic acid Substances 0.000 claims description 4
- 239000005457 ice water Substances 0.000 claims description 4
- 238000002156 mixing Methods 0.000 claims description 4
- 235000010482 polyoxyethylene sorbitan monooleate Nutrition 0.000 claims description 4
- 229920000053 polysorbate 80 Polymers 0.000 claims description 4
- 229910021536 Zeolite Inorganic materials 0.000 claims description 3
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 claims description 3
- 238000005485 electric heating Methods 0.000 claims description 3
- 238000005406 washing Methods 0.000 claims description 3
- 239000010457 zeolite Substances 0.000 claims description 3
- 238000004140 cleaning Methods 0.000 claims 1
- 239000000463 material Substances 0.000 abstract description 4
- 239000002537 cosmetic Substances 0.000 abstract description 3
- 229940079593 drug Drugs 0.000 abstract description 3
- 239000003814 drug Substances 0.000 abstract description 3
- 235000013305 food Nutrition 0.000 abstract description 3
- 239000002861 polymer material Substances 0.000 abstract description 2
- 238000001256 steam distillation Methods 0.000 abstract 1
- 239000003205 fragrance Substances 0.000 description 4
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 description 3
- 230000018044 dehydration Effects 0.000 description 3
- 238000006297 dehydration reaction Methods 0.000 description 3
- 244000131522 Citrus pyriformis Species 0.000 description 2
- 235000013399 edible fruits Nutrition 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000012634 fragment Substances 0.000 description 2
- 239000008187 granular material Substances 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000010298 pulverizing process Methods 0.000 description 2
- 238000003892 spreading Methods 0.000 description 2
- 208000035484 Cellulite Diseases 0.000 description 1
- 241000207199 Citrus Species 0.000 description 1
- 206010010774 Constipation Diseases 0.000 description 1
- 206010013954 Dysphoria Diseases 0.000 description 1
- 241000196324 Embryophyta Species 0.000 description 1
- 206010049752 Peau d'orange Diseases 0.000 description 1
- 235000003976 Ruta Nutrition 0.000 description 1
- 240000005746 Ruta graveolens Species 0.000 description 1
- 230000017531 blood circulation Effects 0.000 description 1
- 230000036772 blood pressure Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 210000004556 brain Anatomy 0.000 description 1
- 230000036232 cellulite Effects 0.000 description 1
- 235000020971 citrus fruits Nutrition 0.000 description 1
- 239000011162 core material Substances 0.000 description 1
- 210000002249 digestive system Anatomy 0.000 description 1
- 201000006549 dyspepsia Diseases 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 208000001780 epistaxis Diseases 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 210000000987 immune system Anatomy 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 229920005615 natural polymer Polymers 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 235000005806 ruta Nutrition 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J13/00—Colloid chemistry, e.g. the production of colloidal materials or their solutions, not otherwise provided for; Making microcapsules or microballoons
- B01J13/02—Making microcapsules or microballoons
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11B—PRODUCING, e.g. BY PRESSING RAW MATERIALS OR BY EXTRACTION FROM WASTE MATERIALS, REFINING OR PRESERVING FATS, FATTY SUBSTANCES, e.g. LANOLIN, FATTY OILS OR WAXES; ESSENTIAL OILS; PERFUMES
- C11B9/00—Essential oils; Perfumes
- C11B9/0003—Compounds of unspecified constitution defined by the chemical reaction for their preparation
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11B—PRODUCING, e.g. BY PRESSING RAW MATERIALS OR BY EXTRACTION FROM WASTE MATERIALS, REFINING OR PRESERVING FATS, FATTY SUBSTANCES, e.g. LANOLIN, FATTY OILS OR WAXES; ESSENTIAL OILS; PERFUMES
- C11B9/00—Essential oils; Perfumes
- C11B9/02—Recovery or refining of essential oils from raw materials
- C11B9/027—Recovery of volatiles by distillation or stripping
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Wood Science & Technology (AREA)
- Dispersion Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Cosmetics (AREA)
- Fats And Perfumes (AREA)
Abstract
The patent discloses a preparation method of a lemon essential oil microcapsule, which comprises the following steps: (1) extracting lemon essential oil from lemon peel by steam distillation with fresh lemon peel as material; (2) the lemon essential oil microcapsule is prepared by adopting an orifice coagulation bath method, taking natural high polymer materials of gelatin and sodium alginate as wall materials and adopting the orifice coagulation bath method. The invention improves the application efficiency of the lemon essential oil, and the prepared lemon essential oil microcapsule can be widely applied to the fields of food, cosmetics, medicines and the like.
Description
Technical Field
The invention relates to a preparation method of a lemon essential oil microcapsule, which can be used in the technical field of plant essential oil extraction and processing.
Background
Lemon belongs to the genus Citrus of Ruta of dicotyledonous class, and is called as "Yangliang lemon", Ningguo "and Yimu fruit". Lemon fruits are elliptical or oval in shape, thick and rough in peel, native to africa, malaysia, china and many other countries, and are now widely planted around the world. The lemon contains rich citric acid, and the lemon peel also contains rich lemon essential oil, and the lemon fragrance mainly comes from the essential oil in the lemon peel. The lemon essential oil can improve the circulatory system function of a human body, and can promote blood circulation, reduce blood pressure and stop nosebleed. It can enhance immune system, purify body, improve digestive system function, decompose cellulite, and treat dyspepsia and constipation. And the lemon essential oil has fresh fragrance, and can refresh brain, refresh spirit, relieve dysphoria and purify air. Therefore, the lemon essential oil has higher application value in the fields of food, cosmetics, medicines and the like. However, in practical application, the lemon essential oil has the characteristic of volatility, so that the application efficiency is reduced.
Disclosure of Invention
The invention aims to solve the problem that the utilization efficiency of lemon essential oil is reduced due to the volatile property of the lemon essential oil, the lemon essential oil microcapsule is prepared by a microencapsulation technology to improve the utilization rate of the lemon essential oil, and the microencapsulation technology mainly uses a natural polymer material as a wall material to encapsulate the fragrance component, so that the fragrance component can be slowly released.
In order to achieve the purpose, the invention adopts the following technical scheme
A lemon essential oil microcapsule mainly comprises two parts, one part is core material, namely lemon essential oil, and the other part is capsule wall material composed of gelatin and sodium alginate.
A preparation method of a lemon essential oil microcapsule comprises the following specific steps:
(1) extracting the lemon essential oil:
crushing fresh lemon peel by a crusher to obtain lemon peel particles for later use. Precisely weighing 40.0 g-50.0 g of lemon peel particles, placing in a distillation device, adding distilled water, heating to slightly boil, collecting distillate, separating the distillate into two layers, placing the essential oil on the upper layer of the distillate, sucking the upper layer of the essential oil by using an injector, and storing the prepared essential oil in a refrigerator for later use.
(2) Preparing the lemon microcapsules by an orifice coagulation bath method:
accurately weighing 2 g-4 g of lemon essential oil, adding into a 50ml beaker, adding 1.5ml of Tween 80, stirring with a glass rod to uniformly mix to obtain a solution A, and accurately weighing 1.2g of gelatin, heating and stirring to fully dissolve in 30ml of water to obtain a solution B; then 1.5g of sodium alginate is accurately weighed, heated and stirred and dissolved in 40ml of water to prepare the sodium alginate solution. Mixing solution A and solution B, adding into sodium alginate solutionStirring the solution evenly to obtain milky mixed solution, and adjusting the pH value of the mixed solution to be 4 by using 0.5mol/L glacial acetic acid solution. Stirring with a magnetic stirrer in a constant temperature water bath at 45 deg.C and 250r/min for 50min, cooling the mixed solution to room temperature, and dripping CaCl into the emulsion with a rubber-tipped dropper2To the solution, 3ml of glutaraldehyde was added while stirring dropwise to sufficiently solidify the lemon essential oil microcapsules. And (4) completely dripping the emulsion, and standing to fully solidify the emulsion. The lemon essential oil capsules were separated with a filter flask and washed with distilled water 1 to 2 times. The wet capsule product was placed in a beaker and placed in an ice-water bath at-4 ℃, isopropanol was added and stirred for dehydration. And (3) paving the dehydrated wet capsules in a surface dish, putting the surface dish into a 50 ℃ electric heating air blast drying box, drying for 1.5h, and taking out.
Preferably, in the step (1), the lemon peel is washed, and then the inner white part is removed, and then the lemon peel is pulverized by a pulverizer.
Preferably, in the step (1), the particle size is 50 to 150 meshes.
Preferably, in the step (1), the distillation apparatus is a 250 ml round-bottom flask.
Preferably, in the step (1), 50mL of distilled water is added, and three grains of zeolite are added.
Preferably, in the step (1), the heating temperature is 120-130 ℃.
Preferably, in the step (2), the concentration of calcium chloride is 0.5 mol/L.
Preferably, in the step (2), the volume of calcium chloride is 100 ml.
Preferably, in the step (2), the curing time is 1 to 2 hours.
The invention has the advantages of
The invention has the advantages of easily obtained raw materials, simple process, convenient operation, low energy consumption, low cost, high efficiency and no pollution, and can be used for marketization and industrial production. The invention greatly improves the utilization efficiency of the lemon essential oil, and the prepared lemon essential oil microcapsule can be widely applied to the fields of food, cosmetics, medicines and the like.
Detailed Description
Example 1
(1) Extracting the lemon essential oil:
removing the white part in the skin from the fresh lemon peel, and pulverizing with a pulverizer to obtain lemon peel granules for later use. Precisely weighing 40.0 g of lemon pericarp fragments, placing in a 250 mL round-bottom flask, adding 50mL of distilled water, distilling for 2 hours, collecting distillate, separating the distillate into two layers, placing the essential oil on the upper layer of the distillate, sucking the upper layer of the essential oil, and storing in a refrigerator for later use.
(2) Preparing the lemon microcapsules by an orifice coagulation bath method:
accurately weighing 2g of lemon essential oil, adding into a 50ml beaker, adding 1.5ml of Tween 80, stirring with a glass rod to uniformly mix to obtain a solution A, and accurately weighing 1.2g of gelatin, heating and stirring to fully dissolve in 30ml of water to obtain a solution B; then 1.5g of sodium alginate is accurately weighed, heated and stirred and dissolved in 40ml of water to prepare the sodium alginate solution. And (3) fully and uniformly mixing the solution A and the solution B, adding the mixture into a sodium alginate solution, uniformly stirring the mixture by using a glass rod to obtain a milky mixed solution, and adjusting the pH value of the mixed solution to be 4 by using 0.5mol/L glacial acetic acid solution. Stirring with a magnetic stirrer in a constant temperature water bath at 45 deg.C and 250r/min for 50min, cooling the mixed solution to room temperature, and dripping 100ml of 0.5mol/L CaCl into the emulsion with a rubber-tipped dropper at a certain liquid level distance2In the solution, 3ml of glutaraldehyde is added and the solution is stirred while being dropwise added, and is kept stand for 1 hour to fully solidify the lemon essential oil microcapsules. Separating the lemon essential oil capsules, and washing with distilled water for 1 to 2 times. The wet capsule product was placed in a beaker and placed in an ice-water bath at-4 ℃, isopropanol was added and stirred for dehydration. Spreading the dehydrated wet capsules in a petri dish, putting the petri dish in an electrothermal blowing drying oven at 50 ℃, drying for 1.5h, and taking out the dried capsules to obtain the lemon essential oil microcapsules.
Example 2
(1) Extracting the lemon essential oil:
removing the white part in the skin from the fresh lemon peel, and pulverizing with a pulverizer to obtain lemon peel granules for later use. Precisely weighing 50.0g of lemon pericarp fragments, placing in a 250 mL round-bottom flask, adding 50mL of distilled water, distilling for 2 hours, collecting distillate, separating the distillate into two layers, collecting the upper layer essential oil, and storing in a refrigerator.
(2) Preparing the lemon microcapsules by an orifice coagulation bath method:
accurately weighing 4g of lemon essential oil, adding into a 50ml beaker, adding 1.5ml of Tween 80, stirring with a glass rod to uniformly mix to obtain a solution A, and accurately weighing 1.2g of gelatin, heating and stirring to fully dissolve in 30ml of water to obtain a solution B; then 1.5g of sodium alginate is accurately weighed, heated and stirred and dissolved in 40ml of water to prepare the sodium alginate solution. And (3) fully and uniformly mixing the solution A and the solution B, adding the mixture into a sodium alginate solution, uniformly stirring the mixture by using a glass rod to obtain a milky mixed solution, and adjusting the pH value of the mixed solution to be 4 by using 0.5mol/L glacial acetic acid solution. Stirring with a magnetic stirrer in a constant temperature water bath at 45 deg.C and 250r/min for 50min, cooling the mixed solution to room temperature, and dripping 100ml of 0.5mol/L CaCl into the emulsion with a rubber-tipped dropper at a certain liquid level distance2In the solution, 3ml of glutaraldehyde is added and stirred while dropping, and the solution is kept stand for 2 hours to fully solidify the lemon essential oil microcapsules. Separating the lemon essential oil capsules, and washing with distilled water for 1 to 2 times. The wet capsule product was placed in a beaker and placed in an ice-water bath at-4 ℃, isopropanol was added and stirred for dehydration. Spreading the dehydrated wet capsule in a petri dish, putting the petri dish in a 50 ℃ electric heating air blast drying oven, drying for 1.5h, taking out, and making the lemon essential oil microcapsule
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (9)
1. The preparation method of the lemon essential oil microcapsule is characterized by mainly comprising the following steps:
(1) extracting the lemon essential oil:
crushing fresh lemon peel by a crusher to obtain lemon peel particles for later use; precisely weighing 40.0 g-50.0 g of lemon peel particles, placing the lemon peel particles in a distillation device, adding distilled water and zeolite, heating to slightly boil, collecting distillate, separating the distillate into two layers, sucking the upper layer of essential oil by using an injector, and storing the prepared essential oil in a refrigerator for later use;
(2) preparing the lemon microcapsules by an orifice coagulation bath method:
accurately weighing 2 g-4 g of lemon essential oil, adding into a 50ml beaker, adding 1.5ml of Tween 80, stirring with a glass rod to uniformly mix to obtain a solution A, and accurately weighing 1.2g of gelatin, heating and stirring to fully dissolve in 30ml of water to obtain a solution B; accurately weighing 1.5g of sodium alginate, heating and stirring, and dissolving in 40ml of water to prepare a sodium alginate solution; fully and uniformly mixing the solution A and the solution B, adding the solution A and the solution B into a sodium alginate solution, uniformly stirring to obtain a milky mixed solution, and adjusting the pH value of the mixed solution to 4 by using a 0.5mol/L glacial acetic acid solution; stirring with a magnetic stirrer in a constant temperature water bath at 45 deg.C and 250r/min for 50min, cooling the mixed solution to room temperature, and dripping CaCl into the emulsion with a rubber-tipped dropper2In the solution, dropwise adding while stirring, and adding 3ml of glutaraldehyde to fully solidify the lemon essential oil microcapsules; after the emulsion is completely dripped, standing to fully solidify the emulsion; separating the lemon essential oil capsules by using a filter flask, and washing the capsules by using distilled water for 1 to 2 times; putting the wet capsule product into a beaker, putting the beaker into ice-water bath at the temperature of-4 ℃, adding isopropanol, stirring and dehydrating; and (3) paving the dehydrated wet capsules in a surface dish, putting the surface dish into a 50 ℃ electric heating air blast drying box, drying for 1.5h, and taking out.
2. The method for extracting the lemon essential oil as claimed in claim 1, which is characterized in that: and (2) cleaning the lemon peel in the step (1), removing the white part on the inner side, and crushing by using a crusher.
3. The method for extracting the lemon essential oil as claimed in claim 1, which is characterized in that: the granularity in the step (1) is 50-150 meshes.
4. The method for extracting the lemon essential oil as claimed in claim 1, which is characterized in that: the distillation apparatus described in step (1) was a 250 ml round bottom flask.
5. The method for extracting the lemon essential oil as claimed in claim 1, which is characterized in that: the distilled water in the step (1) is 50mL, and the zeolite is 3 particles.
6. The method for extracting the lemon essential oil as claimed in claim 1, which is characterized in that: the heating temperature in the step (1) is 120-130 ℃.
7. The orifice coagulation bath method for preparing the lemon microcapsules according to claim 1, is characterized in that: the concentration of the calcium chloride in the step (2) is 0.5 mol/L.
8. The orifice coagulation bath method for preparing the lemon microcapsules according to claim 1, is characterized in that: the volume of the calcium chloride in the step (2) is 100 ml.
9. The orifice coagulation bath method for preparing the lemon microcapsules according to claim 1, is characterized in that: the curing time in the step (2) is 1-2 hours.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010828170.4A CN111889043A (en) | 2020-08-17 | 2020-08-17 | Preparation method of lemon essential oil microcapsules |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010828170.4A CN111889043A (en) | 2020-08-17 | 2020-08-17 | Preparation method of lemon essential oil microcapsules |
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| CN111889043A true CN111889043A (en) | 2020-11-06 |
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| CN202010828170.4A Pending CN111889043A (en) | 2020-08-17 | 2020-08-17 | Preparation method of lemon essential oil microcapsules |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114307887A (en) * | 2021-06-10 | 2022-04-12 | 广州昆特臣香精香料科技有限公司 | Preparation method of oily essence microcapsule and microcapsule thereof |
| CN114904468A (en) * | 2021-10-13 | 2022-08-16 | 深圳市华宝生物材料科技有限公司 | Glycerol glutaraldehyde double-crosslinked microcapsule and preparation method thereof |
-
2020
- 2020-08-17 CN CN202010828170.4A patent/CN111889043A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114307887A (en) * | 2021-06-10 | 2022-04-12 | 广州昆特臣香精香料科技有限公司 | Preparation method of oily essence microcapsule and microcapsule thereof |
| CN114307887B (en) * | 2021-06-10 | 2023-03-10 | 广州昆特臣香精香料科技有限公司 | Preparation method of oily essence microcapsule and microcapsule thereof |
| CN114904468A (en) * | 2021-10-13 | 2022-08-16 | 深圳市华宝生物材料科技有限公司 | Glycerol glutaraldehyde double-crosslinked microcapsule and preparation method thereof |
| CN114904468B (en) * | 2021-10-13 | 2023-08-04 | 深圳市华宝生物材料科技有限公司 | Glycerol glutaraldehyde double-crosslinked microcapsule and preparation method thereof |
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Application publication date: 20201106 |