CN113980754A - Cleaning soap composition capable of keeping high activity of enzyme and preparation method thereof - Google Patents
Cleaning soap composition capable of keeping high activity of enzyme and preparation method thereof Download PDFInfo
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- CN113980754A CN113980754A CN202111355885.3A CN202111355885A CN113980754A CN 113980754 A CN113980754 A CN 113980754A CN 202111355885 A CN202111355885 A CN 202111355885A CN 113980754 A CN113980754 A CN 113980754A
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- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D9/00—Compositions of detergents based essentially on soap
- C11D9/04—Compositions of detergents based essentially on soap containing compounding ingredients other than soaps
- C11D9/22—Organic compounds, e.g. vitamins
- C11D9/38—Products in which the composition is not well defined
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- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D9/00—Compositions of detergents based essentially on soap
- C11D9/04—Compositions of detergents based essentially on soap containing compounding ingredients other than soaps
- C11D9/06—Inorganic compounds
- C11D9/08—Water-soluble compounds
- C11D9/10—Salts
- C11D9/14—Phosphates; Polyphosphates
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- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D9/00—Compositions of detergents based essentially on soap
- C11D9/04—Compositions of detergents based essentially on soap containing compounding ingredients other than soaps
- C11D9/06—Inorganic compounds
- C11D9/18—Water-insoluble compounds
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- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D9/00—Compositions of detergents based essentially on soap
- C11D9/04—Compositions of detergents based essentially on soap containing compounding ingredients other than soaps
- C11D9/22—Organic compounds, e.g. vitamins
- C11D9/26—Organic compounds, e.g. vitamins containing oxygen
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- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D9/00—Compositions of detergents based essentially on soap
- C11D9/04—Compositions of detergents based essentially on soap containing compounding ingredients other than soaps
- C11D9/22—Organic compounds, e.g. vitamins
- C11D9/26—Organic compounds, e.g. vitamins containing oxygen
- C11D9/267—Organic compounds, e.g. vitamins containing oxygen containing free fatty acids
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- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D9/00—Compositions of detergents based essentially on soap
- C11D9/04—Compositions of detergents based essentially on soap containing compounding ingredients other than soaps
- C11D9/22—Organic compounds, e.g. vitamins
- C11D9/30—Organic compounds, e.g. vitamins containing nitrogen
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- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D9/00—Compositions of detergents based essentially on soap
- C11D9/04—Compositions of detergents based essentially on soap containing compounding ingredients other than soaps
- C11D9/22—Organic compounds, e.g. vitamins
- C11D9/40—Proteins
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Abstract
A detergent soap composition capable of maintaining high activity of enzyme and a preparation method thereof, wherein the detergent soap composition comprises soap granules, detergent enzyme and chelating agent; alternatively, the cleansing soap composition comprises soap particles, detergent enzymes, a chelating agent and an acidity regulator; and the free acid content in the cleansing soap composition is 0.05% or more. According to the cleaning soap composition, no polyhydric alcohol is added, and the enzyme is not required to be coated into particles through a plurality of coatings, so that the enzyme activity can be kept at good stability within the quality guarantee period of a soap product, and the efficient decontamination effect of the soap is ensured; the preparation method has the advantages of simple process, strong adaptability and high production efficiency.
Description
Technical Field
The present application relates to, but is not limited to, the field of washing products, and particularly relates to a cleansing soap composition capable of maintaining high enzyme activity and a preparation method thereof.
Background
In recent years the market for laundry products has developed rapidly and more builders have been introduced into the laundry industry. With the continuous improvement of enzyme technology and the continuous understanding and recognition of detergent enzymes by society, enzymes have been developed into essential detergent basic components like surfactants, and especially in the industries of washing powder, liquid detergent and the like, the enzymes are widely applied. However, in soaps, enzymes are used relatively rarely, mainly due to the poor stability of enzyme activity in ordinary soaps. The industry has improved the stability of enzyme activity in soaps primarily by two methods:
(1) a complex system comprising an alkali metal borate and a polyhydric alcohol, for example, an enzyme stabilizer comprising borax, glycerin or propylene glycol and citric acid, or a complex boron-based stabilizer (including boric acid, borax, etc.), a solvent such as ethylene glycol or glycerin;
(2) the enzymes are coated into particles by a plurality of coatings, for example, the coatings are used for isolating the enzymes from the environment in the preparation process of the soap, and the stability of the enzyme activity is improved.
In the first method, the polyol solvent such as glycerol, propylene glycol or ethylene glycol is added, so that the soap material has high viscosity, is easy to slip in production equipment, the production speed of the soap is low, the prepared soap is soft, and in addition, the soap contains the polyol, so that the soap has the problems of easy pasting and washfastness in water and the like. In the second method, the enzyme is isolated from the environment through a plurality of coatings in the soap preparation process, and the enzyme needs to be specially coated for realizing the purpose, so that the process is complex, and the particle damage is easily caused in the soap mechanism method processing process, and the stability of the enzyme in the soap is influenced.
Disclosure of Invention
The following is a summary of the subject matter described in detail herein. This summary is not intended to limit the scope of the present application.
The application provides a cleaning soap composition capable of keeping high enzyme activity and a preparation method thereof, polyol is not added into the cleaning soap composition, and enzyme is not required to be coated into particles through a plurality of coatings, so that the enzyme activity can be kept at good stability within the quality guarantee period of a soap product, and the efficient decontamination effect of the soap is ensured; the preparation method has the advantages of simple process, strong adaptability and high production efficiency.
The present application provides a detergent soap composition that can maintain high enzyme activity, comprising soap granules, detergent enzymes and a chelating agent; alternatively, the cleansing soap composition comprises soap particles, detergent enzymes, a chelating agent and an acidity regulator;
and the free acid content in the cleansing soap composition is 0.05% or more.
In embodiments herein, the free acid content in the cleansing soap composition may be from 0.05% to 0.2%.
In embodiments herein, the detergent soap composition may include 70 to 99 parts by weight of soap particles, 0.01 to 2 parts by weight of detergent enzymes, and 0.1 to 4 parts by weight of chelating agents, based on 100 parts by weight of the detergent soap composition;
alternatively, the cleansing soap composition may include soap particles 70 to 99 parts by weight, detergent enzyme 0.01 to 2 parts by weight, and chelating agent 0.1 to 4 parts by weight, based on 100 parts by weight of the cleansing soap composition, and an acidity regulator, the amount of which is adjusted according to the desired free acid content.
In the examples herein, the cleaning soap composition does not contain alkali metal borate or polyol.
In the embodiments of the present application,
the detergent soap composition may comprise soap particles, detergent enzymes and a chelant comprising an acid chelant, or comprising an acid chelant and a metal salt of an acid chelant;
alternatively, the cleansing soap composition may comprise soap particles, detergent enzymes, a chelating agent comprising an acid chelating agent, or a metal salt comprising an acid chelating agent and an acid chelating agent, and an acidity regulator;
wherein the acidic chelating agent may include ethylenediaminetetraacetic acid, ethylenediaminediphophthalic acid, nitrilotriacetic acid, glutamic diacetic acid, diethylenetriaminepentaacetic acid, N-hydroxyethylethylenediaminetriacetic acid, iminodisuccinic acid, polyaspartic acid, aminotrimethylenephosphonic acid, diethylenetriaminepenta (methylenephosphonic acid), ethylenediaminetetramethylenephosphonic acid, and hydroxyethylenediphosphonic acid.
In the embodiments of the present application, the acidity regulator may be selected from any one or more of inorganic acids and organic acids.
In embodiments herein, the inorganic acid may include any one or more of phosphoric acid, hydrochloric acid, and sulfuric acid.
In embodiments of the present application, the organic acid may include any one or more of tartaric acid, oxalic acid, malic acid, citric acid, ascorbic acid, formic acid, succinic acid, benzoic acid, salicylic acid, citric acid, valeric acid, capric acid, lauric acid, myristic acid, palmitic acid, stearic acid, and lactic acid.
In embodiments of the present application, the soap particles may be selected from any one or more of soap particles, clear soap particles, whitening soap particles, and laundry soap particles.
In embodiments of the present application, the washing enzyme may be selected from any one or more of proteases, cellulases, lipases, amylases, pectinases and glycanases.
In embodiments herein, the cleansing bar composition may further comprise an auxiliary additive applied to the soap product selected from any one or more of zeolites, shaping agents, colorants, brighteners, antioxidants, fillers, and perfumes applied to the soap product.
The present application also provides a method of preparing the cleansing soap composition as described above, comprising: mixing and stirring soap granules, detergent enzymes, a chelating agent and optionally an acidity regulator and auxiliary additives applied to soap products, and forming to obtain the cleaning soap composition.
According to the cleaning soap composition, enzyme stabilizers such as alkali metal borate or polyhydric alcohol do not need to be added, and enzymes do not need to be coated into particles through a plurality of coatings, so that good enzyme activity stability can be kept in the quality guarantee period of a soap product, and the efficient decontamination effect is guaranteed; and the production process is simple, the adaptability is strong, and the production efficiency is high.
Additional features and advantages of the application will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by the practice of the application. Other advantages of the present application may be realized and attained by the instrumentalities and methods described in the specification.
Detailed Description
Hereinafter, embodiments of the present application will be described in detail to make objects, technical solutions and advantages of the present application more apparent. It should be noted that the embodiments and features of the embodiments in the present application may be arbitrarily combined with each other without conflict.
The embodiment of the application provides a detergent soap composition capable of keeping high activity of enzyme, which comprises soap granules, detergent enzyme and a chelating agent; alternatively, the cleansing soap composition comprises soap particles, detergent enzymes, a chelating agent and an acidity regulator;
and the free acid content in the cleansing soap composition is 0.05% or more.
In embodiments herein, the cleansing soap composition may consist of soap particles, detergent enzymes and chelating agents, and the free acid content in the cleansing soap composition is above 0.05%.
In embodiments herein, the cleansing soap composition may consist of soap particles, detergent enzymes, chelating agents and auxiliary additives applied in soap products, and the free acid content in the cleansing soap composition is above 0.05%.
In embodiments of the present application, the cleansing soap composition may consist of soap particles, detergent enzymes, chelating agents, and acidity regulators, and the free acid content in the cleansing soap composition is above 0.05%.
In embodiments of the present application, the cleansing soap composition may consist of soap particles, detergent enzymes, chelating agents, acidity regulators and auxiliary additives applied in soap products, and the free acid content in the cleansing soap composition is above 0.05%.
In embodiments herein, the free acid content in the cleansing soap composition may be from 0.05% to 0.2%.
In an embodiment of the present application, the detergent soap composition includes soap particles, detergent enzymes, and a chelating agent, and the soap particles are 70 to 99 parts by weight, the detergent enzymes are 0.01 to 2 parts by weight, and the chelating agent is 0.1 to 4 parts by weight, based on 100 parts by weight of the detergent soap composition.
In the examples of the present application, the detergent soap composition is composed of soap particles 70 to 99 parts by weight, detergent enzyme 0.01 to 2 parts by weight, and chelating agent 0.1 to 4 parts by weight, based on 100 parts by weight of the detergent soap composition.
In the examples of the present application, the detergent soap composition consists of soap particles 70 to 99 parts by weight, detergent enzyme 0.01 to 2 parts by weight, and chelating agent 0.1 to 4 parts by weight, based on 100 parts by weight of the detergent soap composition, detergent enzyme, chelating agent, and auxiliary additives applied to soap products.
In the embodiment of the application, the detergent soap composition comprises 70-99 parts by weight of soap particles, 0.01-2 parts by weight of detergent enzymes and 0.1-4 parts by weight of chelating agent based on 100 parts by weight of the detergent soap composition, and the addition amount of the acidity regulator is adjusted according to the content of free acid which is expected to be achieved.
In the examples of the present application, the detergent soap composition is composed of soap particles 70 to 99 parts by weight, detergent enzyme 0.01 to 2 parts by weight, and chelating agent 0.1 to 4 parts by weight, based on 100 parts by weight of the detergent soap composition, chelating agent, and acidity regulator, the amount of which is adjusted according to the desired free acid content.
In the examples of the present application, the detergent soap composition is composed of soap particles, detergent enzymes, chelating agents, acidity regulators and auxiliary additives applied to soap products, and the soap particles are 70 to 99 parts by weight, the detergent enzymes are 0.01 to 2 parts by weight, the chelating agents are 0.1 to 4 parts by weight, and the acidity regulators are added in an amount adjusted according to the desired free acid content, based on 100 parts by weight of the detergent soap composition.
In the examples of the present application, the chelating agent may be 0.2 parts by weight to 1 part by weight, for example, may be 0.2 parts by weight, 0.3 parts by weight, 0.4 parts by weight, 0.5 parts by weight, 0.6 parts by weight, 0.7 parts by weight, 0.8 parts by weight, 0.9 parts by weight, or 1 part by weight, based on 100 parts by weight of the cleansing soap composition.
In the examples herein, the cleansing bar composition does not contain an enzyme stabilizer such as an alkali metal borate or a polyol.
In the embodiments of the present application,
the detergent soap composition comprises soap particles, detergent enzymes and a chelating agent, wherein the chelating agent comprises an acid chelating agent or a metal salt comprising an acid chelating agent and an acid chelating agent;
alternatively, the cleansing soap composition comprises soap particles, detergent enzymes, a chelating agent comprising an acid chelating agent, or a metal salt comprising an acid chelating agent and an acid chelating agent, and an acidity regulator;
wherein the acidic chelating agent comprises ethylenediaminetetraacetic acid, ethylenediaminediphthalacetic acid, nitrilotriacetic acid, glutamic diacetic acid, diethylenetriaminepentaacetic acid, N-hydroxyethylethylenediaminetriacetic acid, iminodisuccinic acid, polyaspartic acid, aminotrimethylenephosphonic acid, diethylenetriaminepenta (methylenephosphonic acid), ethylenediaminetetramethylenephosphonic acid, and hydroxyethylenediphosphonic acid.
In the embodiments of the present application, the acidity regulator may be selected from any one or more of inorganic acids and organic acids.
Optionally, the inorganic acid comprises any one or more of phosphoric acid, hydrochloric acid and sulfuric acid.
Optionally, the organic acid comprises any one or more of tartaric acid, oxalic acid, malic acid, citric acid, ascorbic acid, formic acid, succinic acid, benzoic acid, salicylic acid, citric acid, valeric acid, capric acid, lauric acid, myristic acid, palmitic acid, stearic acid, and lactic acid.
In embodiments of the present application, the soap particles may be selected from any one or more of soap particles, clear soap particles, whitening soap particles, and laundry soap particles.
In the embodiment of the present application, the soap particles may include a mixture of sodium fatty acid obtained by vacuum drying a soap base (together with other additional ingredients), including 70 to 87 parts by weight of sodium fatty acid, 13 to 30 parts by weight of water, and may further include appropriate amounts of a surfactant, a free base, an electrolyte, and the like.
In embodiments of the present application, the soap particles may include a mixture of sodium fatty acids obtained by vacuum drying of a soap base, which may be a mixture of sodium fatty acids obtained by saponification or grease hydrolysis of coconut oil, palm kernel oil, lard, tallow or palm oil, and neutralization of fatty acids, suitable for use in laundry soap production. Preferably, the sodium fatty acid comprises 6 to 22 carbon atoms, more preferably 8 to 20 carbon atoms, further preferably 10 to 18 carbon atoms.
In embodiments of the present application, the washing enzyme is selected from any one or more of proteases, cellulases, lipases, amylases, pectinases and glycanases.
In embodiments herein, the cleansing bar composition further comprises an auxiliary additive applied in the soap product selected from any one or more of zeolites, formers, colorants, brighteners, antioxidants, fillers, and perfumes applied in the soap product.
The present application also provides a method of preparing the cleansing soap composition as described above, comprising: mixing and stirring soap granules, detergent enzyme, chelating agent and optional acidity regulator and auxiliary additive applied in soap products, and forming by three-roller extrusion molding to obtain the cleaning soap composition.
Comparative example 1
The cleansing soap composition of this comparative example consisted of soap particles, detergent enzymes, chelating agent and acidity regulator; wherein the free acid content is 0;
the proportion of each component is shown in table 1;
wherein the soap granule is soap granule, the detergent enzyme is protease, the chelating agent is tetrasodium ethylenediamine tetraacetate, and the acidity regulator is pure citric acid.
Comparative example 2
The cleansing soap composition of this comparative example consisted of soap particles, detergent enzymes and acidity regulator, without the addition of chelating agent; wherein the content of free acid is 0.2%;
the proportion of each component is shown in table 1;
wherein the soap granule is soap granule, the enzyme for detergent is protease, and the acidity regulator is pure citric acid.
Example 1
The cleansing soap composition of this example consisted of soap particles, detergent enzymes, chelating agents, and acidity regulators; wherein the content of free acid is 0.05%;
the proportion of each component is shown in table 1;
wherein the soap granule is soap, the detergent enzyme is mannanase, the chelating agent is glutamic acid diacetic acid, and the acidity regulator is phosphoric acid.
Example 2
The cleansing soap composition of this example consisted of soap particles, detergent enzymes, chelating agents, and acidity regulators; wherein the content of free acid is 0.3%;
the proportion of each component is shown in table 1;
wherein the soap granule is transparent soap granule, the detergent enzyme is protease, the chelating agent is selected from tetrasodium ethylenediamine tetraacetate and hydroxyethylidene diphosphonic acid (the weight ratio of the two chelating agents is 1:1), and the acidity regulator is selected from lauric acid.
Example 3
The cleansing soap composition of this example consisted of soap particles, detergent enzymes, chelating agents, acidity regulators, and auxiliary additives; wherein the content of free acid is 0.15%;
the proportion of each component is shown in table 1;
wherein, the soap grain is transparent soap grain, the enzyme for detergent is cellulose, the chelating agent is ethylenediaminetetraacetic acid tetrasodium, the acidity regulator is dodecanoic acid, and the auxiliary additive is 4A zeolite.
Example 4
The cleansing soap composition of this example consisted of soap particles, detergent enzymes, chelating agents, acidity regulators, and auxiliary additives; wherein the content of free acid is 0.25%;
the proportion of each component is shown in table 1;
wherein, the soap grain is whitening soap grain, the enzyme for detergent is cellulose, the chelating agent is ethylenediamine tetra-methylene phosphonic acid sodium, the acidity regulator is stearic acid, and the auxiliary additive is 4A zeolite.
Example 5
The cleansing soap composition of this example consisted of soap particles, detergent enzymes and chelating agents; wherein the content of free acid is 0.2%;
the proportion of each component is shown in table 1;
wherein the soap granule is laundry soap, the enzyme for detergent is protease, and the chelating agent is ethylenediaminetetraacetic acid.
Example 6
The cleansing soap composition of this example consisted of soap particles, detergent enzymes and chelating agents; wherein the content of free acid is 0.4%;
the proportion of each component is shown in table 1;
wherein, the soap grain is laundry soap grain, the enzyme for detergent is protease, and the chelating agent is hydroxyethylidene diphosphonic acid and ethylenediamine tetraacetic acid (the weight ratio of the two chelating agents is 1: 1).
TABLE 1 formulation of cleansing bar composition
It can be seen that, compared with the cleansing soap composition of the comparative example, the cleansing soap composition of the examples of the present application has a free acid content of 0.05% or more, and still has a high enzyme activity and a good enzyme activity stability after standing for 60 days.
Assay for enzyme Activity stability
1. Test method
(1) The enzyme activity determination method comprises the following steps: the principle is that dimethyl casein (DMC) is hydrolyzed into small-fragment polypeptide by protease, and the released amino acid cluster and trinitrobenzene sulfonic acid (TNBS) form a colored complex; after a standard curve is drawn by using a standard enzyme and curve checking is carried out by using a control enzyme, the magnitude of the enzyme activity can be judged by calculating the change of absorbance in unit time.
(2) The detergency ratio measuring method comprises: with reference to the specification of the Chinese national standard GB/T13174-2008 'determination of detergency and circular washing performance of a detergent for clothing', the washing parameters and the sample treatment mode are properly modified, and the method specifically comprises the following steps: changing the washing parameter from 2g/L to 3g/L, and keeping other parameters unchanged; after the washing machine is adopted for washing, the test aims to reduce the influence of human factors and the like on the detergency.
The stability of the enzyme activity is characterized by the detergency, and the enzyme activity percent is (P value of an experimental sample-P value of a blank sample)/(P value of a manual enzyme sample-P value of the blank sample) multiplied by 100 percent.
2. Influence of free acid content on enzyme Activity
The production of the laundry soap relates to a fatty acid neutralization stage, most of soap bases used for producing the common laundry soap are fatty acid sodium salts, NaOH for neutralizing the fatty acid is selected to be slightly excessive, and the laundry soap is also helpful for a subsequent forming process. Although alkaline proteases are used in enzymatic laundry soaps, the enzyme itself is more alkaline in stability and has a pH of about 8 to 9. Excessive NaOH can cause the existence of free alkali, so that the pH value of the laundry soap is far higher than 8-9, most common laundry soaps have about 20% of moisture, and the sodium salt of fatty acid in the internal environment of the laundry soap is hydrolyzed, so that the pH value of the laundry soap is further increased.
Sample preparation: adding protease 0.2 wt%, chelating agent 0.2 wt%, citric acid 50 wt% in different addition amounts and soap particles in balance into a mixing pot, stirring uniformly, further mixing uniformly by a three-roll grinder, discharging, and cutting the soap bar into soap blocks with the same size. And sealing the prepared soap block sample by using a PE packaging film, and placing the soap block sample in a constant temperature and humidity box at 45 ℃. Sampling after 15 days, 30 days and 60 days respectively to detect the enzyme activity of the protease, and comparing the enzyme activity of fresh enzyme preparations with the same quantity.
TABLE 2 influence of different free acid contents on enzyme activity (without glycerol and borax)
Note: the free acid content is negative and indicates the free base content.
It can be seen that the free acid content has a direct effect on the enzyme activity, the higher the free acid content is, the higher the enzyme activity stability is, but after the free acid content of the soap reaches 0.2%, the enzyme activity stability is still improved along with the continuous increase of the free acid content, but the improvement trend is gradually slowed down. Therefore, the free acid content can be controlled to be more than 0.05%; the stability of the enzyme activity and the cost are comprehensively considered, and the content of the free acid can be controlled to be about 0.05 percent to 0.2 percent.
3. Effect of enzyme stabilizers on enzyme Activity
Sample preparation: adding protease 0.2 wt%, citric acid 50 wt%, chelating agent 0.2 wt%, enzyme stabilizer (composed of glycerol and borax) with different weight percentage and addition amount, and soap grain in balance into a mixing pot, controlling the content of free acid in soap to be 0.2%, stirring uniformly, further mixing uniformly by a three-roll grinder, discharging, and cutting the soap bar into soap blocks with the same size. And sealing the prepared sample by using a PE packaging film, and placing the sample in a constant temperature and humidity box at 45 ℃. Sampling after 30 days and 60 days respectively to detect the enzyme activity of the protease, and comparing the enzyme activity of fresh enzyme preparations with the same quantity.
TABLE 3 Effect of enzyme stabilizers on enzyme Activity
It can be seen that the enzyme stabilizer has no direct effect on the enzymatic activity of the protease-containing enzymatic soap, and thus the enzyme stabilizer may not be added to the cleaning soap composition formulation.
4. Effect of chelating agent addition on enzyme Activity
Sample preparation: 0.2 weight percent of protease, 1.5 weight percent of citric acid with the mass fraction of 50 percent, and different addition amounts of chelating agent sodium Ethylene Diamine Tetra Methylene Phosphonate (EDTMPS), wherein the content of free acid of the soap is controlled to be 0.2 percent, and the rest soap particles are added into a batching pot, are stirred uniformly, are further mixed uniformly by a three-roll grinder and then are discharged, and the soap bar is cut into soap blocks with the same size. And sealing the prepared soap block sample by using a PE packaging film, and placing the soap block sample in a constant temperature and humidity box at 45 ℃. Sampling after 30 days and 60 days respectively to detect the enzyme activity of the protease, and comparing the enzyme activity of fresh enzyme preparations with the same quantity.
TABLE 4 Effect of chelating agent addition on enzyme Activity
It can be seen that the addition of the chelating agent for soap can significantly improve the stability of enzyme activity under the same free acid condition. Furthermore, the enzyme activity stability is increased with the increase of the addition amount of the chelating agent.
5. Influence of the addition amount of the acid chelating agent on enzyme activity under the condition of not adding the acidity regulator
Sample preparation: adding 0.2 wt% of protease, chelating agent ethylene diamine tetraacetic acid (EDTA-acid) with different addition amounts and the rest soap granules (without adding an acid regulator) into a mixing pot, stirring uniformly, further mixing uniformly by a three-roll grinder, discharging, and cutting the soap bars into soap blocks with the same size. And sealing the prepared soap block sample by using a PE packaging film, and placing the soap block sample in a constant temperature and humidity box at 45 ℃. Sampling after 30 days and 60 days respectively to detect the enzyme activity of the protease, and comparing the enzyme activity of fresh enzyme preparations with the same quantity.
TABLE 5 Effect of acid chelator addition on enzyme Activity
It can be seen that the formula does not contain an acid regulator, and the addition of the acid chelating agent can achieve better enzyme activity stability when the free acid of the soap reaches 0.05 percent or more.
6. Effect of different kinds of chelating Agents on enzyme Activity
Sample preparation: 0.2 weight percent of protease, 0.5 weight percent of pure citric acid, 0.5 weight percent of different chelating agents of ethylene diamine tetraacetic acid (EDTA acid) and hydroxyethylidene diphosphonic acid (HEDP) are added into a mixing pot, the free acid content of the soap is controlled to be 0.2 percent, the rest soap particles are added into the mixing pot, after even stirring, the mixture is further mixed evenly by a three-roll grinder, then the mixture is taken out, and the soap bar is cut into soap blocks with the same size. And sealing the prepared soap block sample by using a PE packaging film, and placing the soap block sample in a constant temperature and humidity box at 45 ℃. Sampling after 30 days and 60 days respectively to detect the enzyme activity of the protease, and comparing the enzyme activity of fresh enzyme preparations with the same quantity.
TABLE 6 Effect of different chelating agents on enzyme Activity
It can be seen that the type of chelating agent has little influence on the stability of enzyme activity under the condition of the same content of free acid.
7. Effect of the Presence or absence of added chelating Agents on enzyme Activity
Sample preparation: earlier experiments confirm that the soap contains chelating agent, free acid is about 0.2%, and the enzyme activity stability is high; adding protease 0.2 wt% and acidity regulator (50 wt% citric acid, lauric acid or stearic acid) into a compounding pot; adding 0.2 wt% of chelating agent sodium Ethylene Diamine Tetra Methylene Phosphonate (EDTMPS) into the mixing pot of one group of tests, and adding no chelating agent into the mixing pot of the other group of tests; two sets of experiments control 0.2% of soap body free acid; and adding the rest soap particles into a proportioning pot, uniformly stirring, further uniformly mixing by a three-roller grinding machine, discharging, and cutting the soap bars into soap blocks with the same size. And sealing the prepared soap block sample by using a PE packaging film, and placing the soap block sample in a constant temperature and humidity box at 45 ℃. Sampling after 30 days and 60 days respectively to detect the enzyme activity of the protease, and comparing the enzyme activity of fresh enzyme preparations with the same quantity.
TABLE 7 Effect of the Presence and absence of added chelating Agents on enzyme Activity
It can be seen that under the condition that the free acid content is 0.2%, the enzyme activity is not greatly influenced by adopting different acidic regulators, namely citric acid, lauric acid and stearic acid; however, under the condition that the content of free acid is 0.2%, the stability of enzyme activity is greatly influenced by the presence or absence of the added chelating agent.
Although the embodiments disclosed in the present application are described above, the descriptions are only for the convenience of understanding the present application, and are not intended to limit the present application. It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the disclosure as defined by the appended claims.
Claims (10)
1. A detergent soap composition capable of maintaining high enzyme activity, comprising soap particles, detergent enzymes and a chelating agent; alternatively, the cleansing soap composition comprises soap particles, detergent enzymes, a chelating agent and an acidity regulator;
and the free acid content in the cleansing soap composition is 0.05% or more.
2. The cleansing soap composition of claim 1, wherein the free acid content in the cleansing soap composition is from 0.05% to 0.2%.
3. The cleansing soap composition according to claim 1, wherein the cleansing soap composition comprises 70 to 99 parts by weight of soap particles, 0.01 to 2 parts by weight of detergent enzymes, and 0.1 to 4 parts by weight of chelating agents, based on 100 parts by weight of the cleansing soap composition;
or, the cleaning soap composition comprises 70 to 99 parts by weight of soap particles, 0.01 to 2 parts by weight of detergent enzyme, and 0.1 to 4 parts by weight of chelating agent, based on 100 parts by weight of the cleaning soap composition, and the addition amount of the acidity regulator is adjusted according to the content of free acid desired to be achieved.
4. The cleansing soap composition of claim 1, wherein the cleansing soap composition is free of alkali metal borate or polyol.
5. The cleansing soap composition according to claim 1,
the detergent soap composition comprises soap particles, detergent enzymes and a chelating agent, wherein the chelating agent comprises an acid chelating agent or a metal salt comprising an acid chelating agent and an acid chelating agent;
alternatively, the cleansing soap composition comprises soap particles, detergent enzymes, a chelating agent comprising an acid chelating agent, or a metal salt comprising an acid chelating agent and an acid chelating agent, and an acidity regulator;
wherein the acidic chelating agent comprises ethylenediaminetetraacetic acid, ethylenediaminediphthalacetic acid, nitrilotriacetic acid, glutamic diacetic acid, diethylenetriaminepentaacetic acid, N-hydroxyethylethylenediaminetriacetic acid, iminodisuccinic acid, polyaspartic acid, aminotrimethylenephosphonic acid, diethylenetriaminepenta (methylenephosphonic acid), ethylenediaminetetramethylenephosphonic acid, and hydroxyethylenediphosphonic acid.
6. The cleansing soap composition according to any one of claims 1 to 5, wherein the acidity regulator is selected from any one or more of inorganic acids and organic acids;
optionally, the inorganic acid comprises any one or more of phosphoric acid, hydrochloric acid and sulfuric acid;
optionally, the organic acid comprises any one or more of tartaric acid, oxalic acid, malic acid, citric acid, ascorbic acid, formic acid, succinic acid, benzoic acid, salicylic acid, citric acid, valeric acid, capric acid, lauric acid, myristic acid, palmitic acid, stearic acid, and lactic acid.
7. The cleansing soap composition according to any one of claims 1 to 5, wherein the soap particles are selected from any one or more of soap particles, clear soap particles, whitening soap particles and laundry soap particles.
8. The cleansing bar composition of any one of claims 1 to 5, wherein the detersive enzyme is selected from any one or more of protease, cellulase, lipase, amylase, pectinase, and glycanase.
9. The cleansing soap composition according to any one of claims 1 to 5, further comprising an auxiliary additive applied in a soap product selected from any one or more of zeolites, shaping agents, colorants, whitening agents, antioxidants, fillers and perfumes applied in a soap product.
10. The method for producing a cleansing soap composition according to any one of claims 1 to 9, characterized in that the production method comprises: mixing and stirring soap granules, detergent enzymes, a chelating agent and optionally an acidity regulator and auxiliary additives applied to soap products, and forming to obtain the cleaning soap composition.
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103242992A (en) * | 2013-05-02 | 2013-08-14 | 广州立白企业集团有限公司 | Washing soap with functional colored granules and production method thereof |
| CN109135971A (en) * | 2018-09-21 | 2019-01-04 | 杭州萧山钱江洗涤用品有限公司 | Laundry soap and its manufacturing process |
| KR20210015975A (en) * | 2021-01-14 | 2021-02-10 | 우컴퍼니 주식회사 | Functional natural soap comprising complex fermented product of citrus peel and buckwheat and manufacturing methods thereof |
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- 2021-11-16 CN CN202111355885.3A patent/CN113980754A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103242992A (en) * | 2013-05-02 | 2013-08-14 | 广州立白企业集团有限公司 | Washing soap with functional colored granules and production method thereof |
| CN109135971A (en) * | 2018-09-21 | 2019-01-04 | 杭州萧山钱江洗涤用品有限公司 | Laundry soap and its manufacturing process |
| KR20210015975A (en) * | 2021-01-14 | 2021-02-10 | 우컴퍼니 주식회사 | Functional natural soap comprising complex fermented product of citrus peel and buckwheat and manufacturing methods thereof |
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Inventor after: Yu Jie Inventor after: Xu Xiangliang Inventor after: Duan Jianjun Inventor after: Shen Yu Inventor after: Yan Weinv Inventor after: Hu Shunjun Inventor before: Yu Jie Inventor before: Xu Xiangliang Inventor before: Duan Jianjun Inventor before: Shen Yu Inventor before: Yan Weinv Inventor before: Hu Shunjun |