CN112111172A - Extraction method of anti-bacterial plant dye combining cellulose mildew and ultrasonic waves - Google Patents
Extraction method of anti-bacterial plant dye combining cellulose mildew and ultrasonic waves Download PDFInfo
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- CN112111172A CN112111172A CN202010960514.7A CN202010960514A CN112111172A CN 112111172 A CN112111172 A CN 112111172A CN 202010960514 A CN202010960514 A CN 202010960514A CN 112111172 A CN112111172 A CN 112111172A
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09B—ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
- C09B61/00—Dyes of natural origin prepared from natural sources, e.g. vegetable sources
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N65/00—Biocides, pest repellants or attractants, or plant growth regulators containing material from algae, lichens, bryophyta, multi-cellular fungi or plants, or extracts thereof
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D11/00—Solvent extraction
- B01D11/02—Solvent extraction of solids
- B01D11/0261—Solvent extraction of solids comprising vibrating mechanisms, e.g. mechanical, acoustical
- B01D11/0265—Applying ultrasound
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D11/00—Solvent extraction
- B01D11/04—Solvent extraction of solutions which are liquid
- B01D11/0419—Solvent extraction of solutions which are liquid in combination with an electric or magnetic field or with vibrations
- B01D11/0423—Applying ultrasound
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D3/00—Distillation or related exchange processes in which liquids are contacted with gaseous media, e.g. stripping
- B01D3/10—Vacuum distillation
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D36/00—Filter circuits or combinations of filters with other separating devices
- B01D36/02—Combinations of filters of different kinds
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09B—ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
- C09B67/00—Influencing the physical, e.g. the dyeing or printing properties of dyestuffs without chemical reactions, e.g. by treating with solvents grinding or grinding assistants, coating of pigments or dyes; Process features in the making of dyestuff preparations; Dyestuff preparations of a special physical nature, e.g. tablets, films
- C09B67/0096—Purification; Precipitation; Filtration
Abstract
The application discloses an antibacterial plant dye extraction method combining cellulose mildew and ultrasonic waves, which comprises the steps of preparing materials, taking sufficient antibacterial plant raw materials, and adding the cellulose mildew into a solution; primary filtering, namely placing the solution obtained in the step (1) in solid-liquid filtering equipment to further obtain a solution contained in the plants; ultrasonic extraction, namely conveying the solution obtained in the step (2) into an ultrasonic cleaner, adding a certain amount of distilled water, and heating the solution at a heating rate of 2 ℃/min under the action of ultrasonic waves with a certain power; and (4) secondary filtration, namely, the solution obtained in the step (3) is conveyed into the centrifuge again, and the solution after ultrasonic extraction can be further filtered by the centrifugal force generated when the centrifuge works. Plant cells and the solution can be sufficiently separated by filtering the mixed solution for the second time, and the solution can form suspension under the action of the ultrasonic cleaner, so that the extraction efficiency of the plant dye is improved.
Description
Technical Field
The application relates to an antibacterial plant dye extraction method, in particular to an antibacterial plant dye extraction method combining cellulose mildew and ultrasonic waves.
Background
The vegetable dye does not contain any chemical substance, is non-toxic and harmless, does not cause any harm to the health of human bodies, has natural color and no fading for a long time, has the functions of insect prevention and antibiosis, and is not possessed by chemical dyes; is particularly suitable for children clothes, underwear, shoes and socks, automotive interiors, bags, indoor and bedding and the like, has high color fastness and can meet the actual use requirements. The plant dye is the main stream of ancient Chinese dyeing technology, which utilizes the pigment extracted from flowers, grasses, trees, stems, leaves, fruits, seeds, barks and roots in the nature as the dye.
The extraction method of the antibacterial plant dye in the traditional technology is generally simpler, impurities are easy to appear or the extraction is insufficient in the extraction process, the raw materials are wasted, and the extraction efficiency of the antibacterial plant dye is not high. Therefore, the method for extracting the antibacterial plant dye by combining the cellulose mold and the ultrasonic waves is provided for solving the problems.
Disclosure of Invention
An antibacterial plant dye extraction method combining cellulose mold and ultrasonic waves comprises the following steps:
(1) preparing materials, namely taking sufficient antibacterial plant raw materials, adding the antibacterial plant raw materials into a crusher for crushing to obtain a crushed solution, adding cellulose mold into the solution to react with the solution, and hydrolyzing cellulose in the antibacterial plant raw materials;
(2) performing primary filtration, namely placing the solution obtained in the step (1) in solid-liquid filtration equipment, so as to separate solid and liquid in the mixed solution and further obtain a solution contained in the plant;
(3) ultrasonic extraction, namely conveying the solution obtained in the step (2) into an ultrasonic cleaner, adding a certain amount of distilled water, heating the solution at a heating rate of 2 ℃/min under the action of ultrasonic waves with a certain power until the solution is heated to a specified temperature of 55-65 ℃, and preserving heat for 2 hours;
(4) secondary filtration, namely conveying the solution obtained in the step (3) into a centrifuge again, and further filtering the solution after ultrasonic extraction by using centrifugal force generated when the centrifuge works, so that a mixed solution of the plant dye and distilled water can be obtained and is kept stand for a period of time, and the extraction purity of the plant dye is improved;
(5) evaporating, namely conveying the solution obtained in the step (4) into a rotary evaporator, enabling an evaporation flask to rotate at a constant speed at an optimal speed to increase the evaporation area, enabling the evaporation flask to be in a negative pressure state through a vacuum pump, enabling the evaporation flask to be placed in a water bath kettle for constant-temperature heating while rotating, and heating, diffusing and evaporating the solution in the evaporation flask in the rotary flask under the negative pressure; and then removing water in the mixed solution of the vegetable dye and the distilled water to obtain the vegetable dye.
Further, the mixture ratio of the raw materials in the step (1) is as follows: 3-4 parts of antibacterial plant raw materials and 4-6 parts of cellulose mold.
Further, the crusher in the step (1) is a plant cell crusher, and the plant cell crusher can crush and stir the antibacterial plant raw material, so as to obtain a mixed solution of plant cells.
Further, the cellulose mold in the step (1) is a catalyst, and the cellulose mold plays a biocatalytic role in decomposing cellulose and can decompose the cellulose into proteins of oligosaccharide or monosaccharide.
Further, the solid-liquid filtering equipment in the step (2) adopts three filtering sieves, and the three filtering sieves respectively adopt a 100-mesh sieve, an 80-mesh sieve and a 60-mesh sieve.
Further, the plant dye can be fused by adding distilled water in the step (3), and the plant dye has the characteristics of dissolving in water and enhancing the extraction capability of the plant dye.
Furthermore, the ultrasonic cleaner in the step (3) adopts a cleaner of WH-300 type, and the ultrasonic cleaner utilizes the direct and indirect action of the cavitation action, the acceleration action and the direct current action of the ultrasonic waves in the liquid on the liquid and the dirt, so that the distilled water is fully fused with the plant dye.
Further, the centrifuge in the step (4) is a PS200 type centrifuge, and the centrifuge can separate components in the liquid and solid particles or the mixture of the liquid and the liquid by using centrifugal force, and separate the suspended matter from the mixed solution of distilled water and the plant dye by the centrifuge.
Further, the rotary evaporator in the step (5) is an RE-52 type evaporator, and the rotary evaporator can extract the water in the mixed solution of distilled water and the plant dye, so as to obtain the plant dye.
Further, the rotary flask of the rotary evaporator in the step (5) is a 1000ml type, and it is desirable that the amount of the solution is not more than 50%.
The beneficial effect of this application is: the application provides an antibacterial plant dye extraction method combining cellulose mold and ultrasonic waves, which is high in plant dye extraction capacity.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without inventive exercise.
FIG. 1 is a flow chart of a method according to an embodiment of the present application.
Detailed Description
In order to make the technical solutions better understood by those skilled in the art, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only partial embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It should be understood that the data so used may be interchanged under appropriate circumstances such that embodiments of the application described herein may be used. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
In this application, the terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings. These terms are used primarily to better describe the present application and its embodiments, and are not used to limit the indicated devices, elements or components to a particular orientation or to be constructed and operated in a particular orientation.
Moreover, some of the above terms may be used to indicate other meanings besides the orientation or positional relationship, for example, the term "on" may also be used to indicate some kind of attachment or connection relationship in some cases. The specific meaning of these terms in this application will be understood by those of ordinary skill in the art as appropriate.
Furthermore, the terms "mounted," "disposed," "provided," "connected," and "sleeved" are to be construed broadly. For example, it may be a fixed connection, a removable connection, or a unitary construction; can be a mechanical connection, or an electrical connection; may be directly connected, or indirectly connected through intervening media, or may be in internal communication between two devices, elements or components. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present application will be described in detail below with reference to the embodiments with reference to the attached drawings.
The first embodiment is as follows:
an antibacterial plant dye extraction method combining cellulose mold and ultrasonic waves comprises the following steps:
(1) preparing materials, namely taking sufficient antibacterial plant raw materials, adding the antibacterial plant raw materials into a crusher for crushing to obtain a crushed solution, adding cellulose mold into the solution to react with the solution, and hydrolyzing cellulose in the antibacterial plant raw materials;
(2) performing primary filtration, namely placing the solution obtained in the step (1) in solid-liquid filtration equipment, so as to separate solid and liquid in the mixed solution and further obtain a solution contained in the plant;
(3) ultrasonic extraction, namely conveying the solution obtained in the step (2) into an ultrasonic cleaner, adding a certain amount of distilled water, heating the solution at a heating rate of 2 ℃/min under the action of ultrasonic waves with a certain power until the solution is heated to a specified temperature of 55 ℃, and preserving the heat for 2 hours;
(4) secondary filtration, namely conveying the solution obtained in the step (3) into a centrifuge again, and further filtering the solution after ultrasonic extraction by using centrifugal force generated when the centrifuge works, so that a mixed solution of the plant dye and distilled water can be obtained and is kept stand for a period of time, and the extraction purity of the plant dye is improved;
(5) evaporating, namely conveying the solution obtained in the step (4) into a rotary evaporator, enabling an evaporation flask to rotate at a constant speed at an optimal speed to increase the evaporation area, enabling the evaporation flask to be in a negative pressure state through a vacuum pump, enabling the evaporation flask to be placed in a water bath kettle for constant-temperature heating while rotating, and heating, diffusing and evaporating the solution in the evaporation flask in the rotary flask under the negative pressure; and then removing water in the mixed solution of the vegetable dye and the distilled water to obtain the vegetable dye.
Further, the mixture ratio of the raw materials in the step (1) is as follows: 3 parts of antibacterial plant raw materials and 4 parts of cellulose mold.
Further, the crusher in the step (1) is a plant cell crusher, and the plant cell crusher can crush and stir the antibacterial plant raw material, so as to obtain a mixed solution of plant cells.
Further, the cellulose mold in the step (1) is a catalyst, and the cellulose mold plays a biocatalytic role in decomposing cellulose and can decompose the cellulose into proteins of oligosaccharide or monosaccharide.
Further, the solid-liquid filtering equipment in the step (2) adopts three filtering sieves, and the three filtering sieves respectively adopt a 100-mesh sieve, an 80-mesh sieve and a 60-mesh sieve.
Further, the plant dye can be fused by adding distilled water in the step (3), and the plant dye has the characteristics of dissolving in water and enhancing the extraction capability of the plant dye.
Furthermore, the ultrasonic cleaner in the step (3) adopts a cleaner of WH-300 type, and the ultrasonic cleaner utilizes the direct and indirect action of the cavitation action, the acceleration action and the direct current action of the ultrasonic waves in the liquid on the liquid and the dirt, so that the distilled water is fully fused with the plant dye.
Further, the centrifuge in the step (4) is a PS200 type centrifuge, and the centrifuge can separate components in the liquid and solid particles or the mixture of the liquid and the liquid by using centrifugal force, and separate the suspended matter from the mixed solution of distilled water and the plant dye by the centrifuge.
Further, the rotary evaporator in the step (5) is an RE-52 type evaporator, and the rotary evaporator can extract the water in the mixed solution of distilled water and the plant dye, so as to obtain the plant dye.
Further, the rotary flask of the rotary evaporator in the step (5) is a 1000ml type, and it is desirable that the amount of the solution is not more than 50%.
Example two:
an antibacterial plant dye extraction method combining cellulose mold and ultrasonic waves comprises the following steps:
(1) preparing materials, namely taking sufficient antibacterial plant raw materials, adding the antibacterial plant raw materials into a crusher for crushing to obtain a crushed solution, adding cellulose mold into the solution to react with the solution, and hydrolyzing cellulose in the antibacterial plant raw materials;
(2) performing primary filtration, namely placing the solution obtained in the step (1) in solid-liquid filtration equipment, so as to separate solid and liquid in the mixed solution and further obtain a solution contained in the plant;
(3) ultrasonic extraction, namely conveying the solution obtained in the step (2) into an ultrasonic cleaner, adding a certain amount of distilled water, heating the solution at a heating rate of 2 ℃/min under the action of ultrasonic waves with a certain power until the solution is heated to a specified temperature of 65 ℃, and preserving the heat for 2 hours;
(4) secondary filtration, namely conveying the solution obtained in the step (3) into a centrifuge again, and further filtering the solution after ultrasonic extraction by using centrifugal force generated when the centrifuge works, so that a mixed solution of the plant dye and distilled water can be obtained and is kept stand for a period of time, and the extraction purity of the plant dye is improved;
(5) evaporating, namely conveying the solution obtained in the step (4) into a rotary evaporator, enabling an evaporation flask to rotate at a constant speed at an optimal speed to increase the evaporation area, enabling the evaporation flask to be in a negative pressure state through a vacuum pump, enabling the evaporation flask to be placed in a water bath kettle for constant-temperature heating while rotating, and heating, diffusing and evaporating the solution in the evaporation flask in the rotary flask under the negative pressure; and then removing water in the mixed solution of the vegetable dye and the distilled water to obtain the vegetable dye.
Further, the mixture ratio of the raw materials in the step (1) is as follows: 4 parts of antibacterial plant raw materials and 6 parts of cellulose mold.
Further, the crusher in the step (1) is a plant cell crusher, and the plant cell crusher can crush and stir the antibacterial plant raw material, so as to obtain a mixed solution of plant cells.
Further, the cellulose mold in the step (1) is a catalyst, and the cellulose mold plays a biocatalytic role in decomposing cellulose and can decompose the cellulose into proteins of oligosaccharide or monosaccharide.
Further, the solid-liquid filtering equipment in the step (2) adopts three filtering sieves, and the three filtering sieves respectively adopt a 100-mesh sieve, an 80-mesh sieve and a 60-mesh sieve.
Further, the plant dye can be fused by adding distilled water in the step (3), and the plant dye has the characteristics of dissolving in water and enhancing the extraction capability of the plant dye.
Furthermore, the ultrasonic cleaner in the step (3) adopts a cleaner of WH-300 type, and the ultrasonic cleaner utilizes the direct and indirect action of the cavitation action, the acceleration action and the direct current action of the ultrasonic waves in the liquid on the liquid and the dirt, so that the distilled water is fully fused with the plant dye.
Further, the centrifuge in the step (4) is a PS200 type centrifuge, and the centrifuge can separate components in the liquid and solid particles or the mixture of the liquid and the liquid by using centrifugal force, and separate the suspended matter from the mixed solution of distilled water and the plant dye by the centrifuge.
Further, the rotary evaporator in the step (5) is an RE-52 type evaporator, and the rotary evaporator can extract the water in the mixed solution of distilled water and the plant dye, so as to obtain the plant dye.
Further, the rotary flask of the rotary evaporator in the step (5) is a 1000ml type, and it is desirable that the amount of the solution is not more than 50%.
The application has the advantages that: this application can carry out abundant separation with plant cell and solution through carrying out secondary filter to mixed solution, can form suspension with solution under ultrasonic cleaner's effect simultaneously, compares in traditional technology, and this method can strengthen the extraction efficiency of plant dyestuff.
The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.
Claims (10)
1. An antibacterial plant dye extraction method combining cellulose mold and ultrasonic waves is characterized in that: the method comprises the following steps:
(1) preparing materials, namely taking sufficient antibacterial plant raw materials, adding the antibacterial plant raw materials into a crusher for crushing to obtain a crushed solution, adding cellulose mold into the solution to react with the solution, and hydrolyzing cellulose in the antibacterial plant raw materials;
(2) performing primary filtration, namely placing the solution obtained in the step (1) in solid-liquid filtration equipment, so as to separate solid and liquid in the mixed solution and further obtain a solution contained in the plant;
(3) ultrasonic extraction, namely conveying the solution obtained in the step (2) into an ultrasonic cleaner, adding a certain amount of distilled water, heating the solution at a heating rate of 2 ℃/min under the action of ultrasonic waves with a certain power until the solution is heated to a specified temperature of 55-65 ℃, and preserving heat for 2 hours;
(4) secondary filtration, namely conveying the solution obtained in the step (3) into a centrifuge again, and further filtering the solution after ultrasonic extraction by using centrifugal force generated when the centrifuge works, so that a mixed solution of the plant dye and distilled water can be obtained and is kept stand for a period of time, and the extraction purity of the plant dye is improved;
(5) evaporating, namely conveying the solution obtained in the step (4) into a rotary evaporator, enabling an evaporation flask to rotate at a constant speed at an optimal speed to increase the evaporation area, enabling the evaporation flask to be in a negative pressure state through a vacuum pump, enabling the evaporation flask to be placed in a water bath kettle for constant-temperature heating while rotating, and heating, diffusing and evaporating the solution in the evaporation flask in the rotary flask under the negative pressure; and then removing water in the mixed solution of the vegetable dye and the distilled water to obtain the vegetable dye.
2. The method for extracting the antibacterial plant dye by combining the cellulose mold and the ultrasonic wave as claimed in claim 1, wherein the method comprises the following steps: the mixture ratio of the raw materials in the step (1) is as follows: 3-4 parts of antibacterial plant raw materials and 4-6 parts of cellulose mold.
3. The method for extracting the antibacterial plant dye by combining the cellulose mold and the ultrasonic wave as claimed in claim 1, wherein the method comprises the following steps: the crusher in the step (1) adopts a plant cell crusher, and the plant cell crusher can crush and stir the antibacterial plant raw material so as to obtain a mixed solution of plant cells.
4. The method for extracting the antibacterial plant dye by combining the cellulose mold and the ultrasonic wave as claimed in claim 1, wherein the method comprises the following steps: the cellulose mold in the step (1) is a catalyst, plays a biological catalysis role in decomposing cellulose, and can decompose the cellulose into protein of oligosaccharide or monosaccharide.
5. The method for extracting the antibacterial plant dye by combining the cellulose mold and the ultrasonic wave as claimed in claim 1, wherein the method comprises the following steps: and (3) adopting three filter sieves in the solid-liquid filter equipment in the step (2), wherein the three filter sieves are respectively 100 meshes, 80 meshes and 60 meshes.
6. The method for extracting the antibacterial plant dye by combining the cellulose mold and the ultrasonic wave as claimed in claim 1, wherein the method comprises the following steps: the plant dye can be fused by adding distilled water in the step (3), and the plant dye has the characteristics of dissolving in water and enhancing the extraction capability of the plant dye.
7. The method for extracting the antibacterial plant dye by combining the cellulose mold and the ultrasonic wave as claimed in claim 1, wherein the method comprises the following steps: the ultrasonic cleaner in the step (3) adopts a WH-300 type cleaner, and the ultrasonic cleaner utilizes the direct and indirect action of the cavitation action, the acceleration action and the direct current action of the ultrasonic waves in the liquid on the liquid and the dirt, so that the distilled water is fully integrated with the plant dye.
8. The method for extracting the antibacterial plant dye by combining the cellulose mold and the ultrasonic wave as claimed in claim 1, wherein the method comprises the following steps: the centrifuge in the step (4) adopts a PS200 type centrifuge, the centrifuge can separate each component in liquid and solid particles or a mixture of liquid and liquid by using centrifugal force, and suspended matters are separated from a mixed solution of distilled water and plant dye under the action of the centrifuge.
9. The method for extracting the antibacterial plant dye by combining the cellulose mold and the ultrasonic wave as claimed in claim 1, wherein the method comprises the following steps: the rotary evaporator in the step (5) adopts an RE-52 type evaporator, and the rotary evaporator can extract water in the mixed solution of distilled water and the plant dye, so that the plant dye is obtained.
10. The method for extracting the antibacterial plant dye by combining the cellulose mold and the ultrasonic wave as claimed in claim 1, wherein the method comprises the following steps: the rotary flask of the rotary evaporator in the step (5) is 1000ml, and the solution amount is not more than 50% is suitable.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105153740A (en) * | 2015-09-16 | 2015-12-16 | 张家港天隆针织服饰织造有限公司 | Antimicrobial Lawsonia inermis Linn dye and preparation method |
| CN109337408A (en) * | 2018-11-29 | 2019-02-15 | 武汉职业技术学院 | A kind of extracting method and its application of roselle natural dye |
| CN110698879A (en) * | 2019-11-11 | 2020-01-17 | 耿建兰 | Method for extracting natural pigment from mulberry |
| CN110903675A (en) * | 2019-07-26 | 2020-03-24 | 湖南农业大学 | Method for extracting red-pulp pitaya pigment under assistance of cellulase and ultrasonic wave |
-
2020
- 2020-09-14 CN CN202010960514.7A patent/CN112111172A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105153740A (en) * | 2015-09-16 | 2015-12-16 | 张家港天隆针织服饰织造有限公司 | Antimicrobial Lawsonia inermis Linn dye and preparation method |
| CN109337408A (en) * | 2018-11-29 | 2019-02-15 | 武汉职业技术学院 | A kind of extracting method and its application of roselle natural dye |
| CN110903675A (en) * | 2019-07-26 | 2020-03-24 | 湖南农业大学 | Method for extracting red-pulp pitaya pigment under assistance of cellulase and ultrasonic wave |
| CN110698879A (en) * | 2019-11-11 | 2020-01-17 | 耿建兰 | Method for extracting natural pigment from mulberry |
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