CN111265430A - Camellia oleifera facial mask essence and camellia oleifera facial mask thereof - Google Patents
Camellia oleifera facial mask essence and camellia oleifera facial mask thereof Download PDFInfo
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K8/00—Cosmetics or similar toiletry preparations
- A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
- A61K8/92—Oils, fats or waxes; Derivatives thereof, e.g. hydrogenation products thereof
- A61K8/922—Oils, fats or waxes; Derivatives thereof, e.g. hydrogenation products thereof of vegetable origin
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K8/00—Cosmetics or similar toiletry preparations
- A61K8/02—Cosmetics or similar toiletry preparations characterised by special physical form
- A61K8/0212—Face masks
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K8/00—Cosmetics or similar toiletry preparations
- A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
- A61K8/30—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds
- A61K8/64—Proteins; Peptides; Derivatives or degradation products thereof
- A61K8/645—Proteins of vegetable origin; Derivatives or degradation products thereof
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- A—HUMAN NECESSITIES
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- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K8/00—Cosmetics or similar toiletry preparations
- A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
- A61K8/96—Cosmetics or similar toiletry preparations characterised by the composition containing materials, or derivatives thereof of undetermined constitution
- A61K8/97—Cosmetics or similar toiletry preparations characterised by the composition containing materials, or derivatives thereof of undetermined constitution from algae, fungi, lichens or plants; from derivatives thereof
- A61K8/9783—Angiosperms [Magnoliophyta]
- A61K8/9789—Magnoliopsida [dicotyledons]
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- A—HUMAN NECESSITIES
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- A61K8/00—Cosmetics or similar toiletry preparations
- A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
- A61K8/96—Cosmetics or similar toiletry preparations characterised by the composition containing materials, or derivatives thereof of undetermined constitution
- A61K8/97—Cosmetics or similar toiletry preparations characterised by the composition containing materials, or derivatives thereof of undetermined constitution from algae, fungi, lichens or plants; from derivatives thereof
- A61K8/9783—Angiosperms [Magnoliophyta]
- A61K8/9794—Liliopsida [monocotyledons]
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61Q—SPECIFIC USE OF COSMETICS OR SIMILAR TOILETRY PREPARATIONS
- A61Q19/00—Preparations for care of the skin
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K2800/00—Properties of cosmetic compositions or active ingredients thereof or formulation aids used therein and process related aspects
- A61K2800/20—Chemical, physico-chemical or functional or structural properties of the composition as a whole
- A61K2800/30—Characterized by the absence of a particular group of ingredients
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- A—HUMAN NECESSITIES
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- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K2800/00—Properties of cosmetic compositions or active ingredients thereof or formulation aids used therein and process related aspects
- A61K2800/40—Chemical, physico-chemical or functional or structural properties of particular ingredients
- A61K2800/59—Mixtures
- A61K2800/591—Mixtures of compounds not provided for by any of the codes A61K2800/592 - A61K2800/596
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Abstract
The invention provides an oil tea facial mask essence and an oil tea facial mask thereof, wherein the oil tea facial mask essence comprises, by mass, 4-6% of soybean protein isolate-tea saponin and camellia oil nanoemulsion, 8-14% of glycerol, 3-8% of butanediol, 1-2% of betaine, 3-4% of β -glucan, 0.5-1% of a stem extract of dendrobium nobile, 0.5-1% of a leaf extract of aloe barbadensis, 0.5-1% of a sophora flavescens extract, 1-5% of an extract of lycium barbarum, 0.5-1% of an extract of echinacea, 0.2-0.4% of sodium hyaluronate, 2-4% of 1, 2-hexanediol, 0.01-0.02% of p-hydroxyacetophenone, 1-3% of hydrogenated lecithin, 0.5-1% of disodium EDTA and the balance of water.
Description
Technical Field
The invention relates to the technical field of beauty and skin care, and particularly relates to a camellia oleifera facial mask essence and a camellia oleifera facial mask thereof.
Background
Camellia oleifera, commonly known as camellia oil. The camellia oil is unique woody oil in China, has higher nutritional value and unique health care function, contains unique bioactive substances such as tea polyphenol, camellin and camellin, and has excellent effects of resisting oxidation, preventing radiation, locking water, preserving moisture, inhibiting bacteria, resisting inflammation, nourishing hair and the like. Therefore, camellia oil is widely used in the fields of medicines, foods, cosmetics and the like at present.
However, most of the researches are devoted to the medicinal health care value of the tea oil at present, and the camellia oil still has certain limitations in cosmetic skin care products. In the existing camellia oleifera facial mask essence, camellia oil is difficult to be effectively and stably distributed in an emulsion system, the dispersion of emulsion liquid drops is very easy to occur, flocculation and aggregation between the liquid drops occur, the stability of the camellia oil emulsion system is difficult to maintain, and the existing camellia oil emulsion has large particle size and high viscosity, so that the camellia oil emulsion is difficult to be effectively compounded with components such as plant active ingredients, and the camellia oleifera facial mask essence has poor stability, cannot be well and uniformly permeated on facial mask paper, has poor fitting performance and is not beneficial to skin absorption.
Therefore, the prepared camellia oleifera mask essence and the camellia oleifera mask thereof have good stability and are easier to absorb, and the preparation method has important significance for the application of camellia oleifera in the field of cosmetics and skin care products.
Disclosure of Invention
Therefore, the invention provides the camellia oleifera facial mask essence and the camellia oleifera facial mask thereof.
The technical scheme of the invention is realized as follows:
an oil tea facial mask essence comprises, by mass, 4-6% of soybean protein isolate-tea saponin camellia oil nanoemulsion, 8-14% of glycerol, 3-8% of butanediol, 1-2% of betaine, 3-4% of β -glucan, 0.5-1% of a stem extract of dendrobium nobile, 0.5-1% of an aloe barbadensis leaf extract, 0.5-1% of a sophora flavescens extract, 1-5% of a ningxia wolfberry fruit extract, 0.5-1% of a coneflower extract, 0.2-0.4% of sodium hyaluronate, 2-4% of 1, 2-hexanediol, 0.01-0.02% of p-hydroxyacetophenone, 1-3% of hydrogenated lecithin, 0.5-1% of disodium EDTA and the balance of water.
Further, the soybean protein isolate-tea saponin camellia oil nanoemulsion is prepared by mixing soybean protein isolate and tea saponin to be used as a composite emulsifier, mixing the composite emulsifier with camellia oil and tsaoko essential oil, and homogenizing.
Further, the preparation method of the soybean protein isolate-tea saponin camellia oil nanoemulsion comprises the following steps:
(1) mixing and dissolving soybean protein isolate and tea saponin in a buffer solution, continuously stirring for 1-3 hours at room temperature to completely dissolve and hydrate the mixture, putting the mixture in a refrigerator at 3-5 ℃ overnight to obtain a composite emulsifier, and adding water as a water phase;
(2) uniformly mixing camellia oil and tsaoko essential oil, adding the mixture into a water phase, and homogenizing for 1-3 min at 10000-12000 r/min by using a high-speed disperser to form a coarse emulsion;
(3) homogenizing and emulsifying the coarse emulsion for 6-8 times by adopting a high-pressure homogenizer through high-pressure microjet, and homogenizing and emulsifyingThe mass pressure is 90-110 MPa, and the soybean protein isolate-tea saponin camellia oil nano emulsion is obtained. According to the invention, the soybean protein isolate and the tea saponin are mixed to be used as the composite emulsifier, meanwhile, the camellia oil and the tsaoko amomum fruit essential oil are compounded to form a good antioxidant protection effect, and the soybean protein isolate-tea saponin camellia oil nano emulsion is obtained by utilizing the composite emulsifier and carrying out homogeneous emulsification under certain conditions. PDI of 0.14, zeta-potential of-53.6 mV, turbidity of 3661.224cm-1. The observation result of a transmission electron microscope shows that the camellia oil can be better embedded in the composite emulsifier and uniformly distributed in an emulsion system, and the rheological property research shows that the soybean protein isolate-tea saponin camellia oil nano-emulsion has good dynamic stability, so that the camellia oil and plant extracts such as dendrobium stem extract, aloe barbadensis leaf extract, sophora flavescens extract and the like can form a stable compound system, the stability of a camellia oil facial mask essence mixing system is improved, and the full absorption of micromolecular tea oil and other components is promoted.
Further, the mass ratio of the soybean protein isolate to the tea saponin is 2: 1. The stability of the soybean protein isolate-tea saponin camellia oil nanoemulsion is improved by controlling the mass ratio of the soybean protein isolate to the tea saponin.
Further indicates that the mass fraction ratio of the composite emulsifier, the camellia oil and the tsaoko amomum fruit oil in the soy isolate protein-tea saponin camellia oil nano emulsion is as follows: 3%: 10%: (0.5 to 1)%. The mass parts of the composite emulsifier, the camellia oil and the tsaoko amomum fruit are controlled, the embedding effect and the dispersity of the camellia oil are improved, the emulsion particle size of the soybean protein isolate-tea saponin camellia oil nano emulsion is reduced, and the stability of the emulsion is enhanced.
Further, the buffer was 0.04mol/L and pH 7.0 phosphate buffer solution.
Further, in the step (3), the homogenization pressure is 100 MPa.
Further indicates that the average particle size of the soybean protein isolate-tea saponin camellia oil nano emulsion is 100-200 nm.
An oil tea facial mask containing the oil tea facial mask essence comprises a biological gel type facial mask paster and the oil tea facial mask essence. In order to avoid the problems that the traditional non-woven fabric mask paper is poor in adsorption performance, the essence is not uniformly distributed and the skin is fully absorbed, the biological gel type mask patch is combined with the tea oil mask essence, so that the uniformity and stability of the essence distribution are guaranteed, the essence is effectively adsorbed into the biological gel, the thickness of the mask patch is increased, the tea oil mask essence is more uniformly distributed and can be tightly attached to the surface of the skin in the application process, the essence is slowly released to the skin and becomes thinner and thinner, and small-molecular tea oil and other components can be directly absorbed by the skin.
Compared with the prior art, the invention has the beneficial effects that: the invention adopts the soybean protein isolate-tea saponin camellia oil nanoemulsion to be compounded with the stem extract of dendrobium nobile, the leaf extract of aloe barbadensis, the extract of sophora flavescens ait, the extract of fructus lycii ninghamii and the extract of echinacea, and utilizes the characteristics of smaller emulsion particle size, good stability and low viscosity of the soybean protein isolate-tea saponin camellia oil nanoemulsion, on one hand, the more stable embedding effect of camellia oil is ensured, on the other hand, the more stable mixed system is formed by the camellia oil and other components, the dispersibility is good, the flocculation and aggregation among liquid drops are avoided, so the stability of the mixed system of the camellia oil surface film essence is effectively maintained, the uniform permeation on the surface film paper is facilitated, the adherence is good, and the micromolecular tea oil and other components are easier to be absorbed by the skin without using common preservatives in cosmetics, avoid irritating the skin.
And in order to avoid the problems that the traditional non-woven fabric mask paper is poor in adsorption performance, the essence is not uniformly distributed and the skin is fully absorbed, a biogel type mask patch is further combined with the tea oil mask essence to ensure the uniformity and stability of the distribution of the essence, so that the essence is effectively adsorbed to the interior of the biogel, the tea oil mask essence can be tightly attached to the surface of the skin in the application process, the essence is slowly released to the skin and becomes thinner and thinner, and micromolecular tea oil and other components can be directly absorbed by the skin.
Drawings
FIG. 1 is a graph showing the effect of the ratio of tea saponin to soy protein isolate on average particle size, PDI (a), zeta potential (b), turbidity (c), and particle size distribution (d) according to an embodiment of the present invention;
FIG. 2 is a graph showing the effect of mass fraction of the composite emulsifier on the average particle diameter, PDI (a), zeta potential (b), turbidity (c), and particle size distribution (d) according to the example of the present invention;
FIG. 3 is a graph showing the influence of the mass fraction of camellia oil on the average particle diameter, PDI (a), zeta potential (b), turbidity (c), and particle size distribution (d) according to an example of the present invention;
FIG. 4 is a graph showing the effect of homogenization pressure on average particle size, PDI (a), zeta potential (b), turbidity (c), and particle size distribution (d) according to the present invention;
FIG. 5 is a graph of rheological properties of a camellia oil nanoemulsion of an embodiment of the present invention;
FIG. 6 is a transmission electron microscope image of a camellia oil nanoemulsion of an embodiment of the present invention.
Detailed Description
In order to better understand the technical content of the invention, specific examples are provided below to further illustrate the invention.
The experimental methods used in the examples of the present invention are all conventional methods unless otherwise specified.
The materials, reagents and the like used in the examples of the present invention can be obtained commercially without specific description.
Example 1-an oil tea facial mask essence, which comprises, by mass, 4% of a soy protein isolate-tea saponin camellia oil nanoemulsion, 14% of glycerol, 3% of butanediol, 2% of betaine, β -4% of glucan, 0.5% of a stem extract of dendrobium nobile, 0.5% of an aloe barbadensis leaf extract, 1% of a sophora flavescens extract, 5% of a lycium barbarum extract, 0.5% of an echinacea purpurea extract, 0.4% of sodium hyaluronate, 2% of 1, 2-hexanediol, 0.02% of p-hydroxyacetophenone, 3% of hydrogenated lecithin, 1% of disodium EDTA, and the balance deionized water.
The preparation method of the soybean protein isolate-tea saponin camellia oil nanoemulsion comprises the following steps:
(1) mixing soybean protein isolate and tea saponin in a mass ratio of 2:1, dissolving in 0.04mol/L phosphate buffer solution with pH of 7.0, continuously stirring at room temperature for 1h to completely dissolve and hydrate the mixture, placing the mixture in a refrigerator at 3 ℃ overnight to obtain a composite emulsifier, and adding water as a water phase;
(2) uniformly mixing camellia oil and tsaoko essential oil, adding the mixture into a water phase, and homogenizing for 1min at 10000r/min by using a high-speed disperser to form a coarse emulsion; the mass fraction ratio of the composite emulsifier, the camellia oil and the tsaoko amomum fruit in the soybean protein isolate-tea saponin camellia oil nano emulsion is as follows: 3%: 10%: 0.8 percent;
(3) and (3) homogenizing and emulsifying the coarse emulsion for 6 times by adopting a high-pressure homogenizer under the homogenizing pressure of 90MPa to obtain the soybean protein isolate-tea saponin camellia oil nano emulsion.
The preparation method of the camellia oleifera facial mask essence comprises the steps of firstly weighing and sequentially adding soybean protein isolate-tea saponin camellia oil nano emulsion, glycerol, butanediol, betaine, β -glucan, 2-hexanediol, p-hydroxyacetophenone, hydrogenated lecithin and EDTA disodium into water, uniformly stirring the mixture in an emulsifying pot to form a premixed solution, sequentially adding a dendrobium nobile stem extract, an aloe barbadensis leaf extract, a sophora flavescens extract, a fructus lycii extract and a echinacea purpurea extract, uniformly stirring the premixed solution to obtain the camellia oleifera facial mask essence, immersing a biogel type facial mask patch into the obtained camellia oleifera facial mask essence, taking out the mixture for 10-20 hours, and packaging the mixture to obtain the camellia oleifera facial mask essence
Example 2-a camellia oleifera facial mask essence, comprising, by mass, 6% of a soy protein isolate-tea saponin camellia oil nanoemulsion, 8% of glycerol, 8% of butanediol, 1% of betaine, 3% of β -glucan, 1% of a stem extract of dendrobium nobile, 1% of an aloe barbadensis leaf extract, 0.5% of a sophora flavescens extract, 1% of a lycium barbarum extract, 1% of a echinacea purpurea extract, 0.2% of sodium hyaluronate, 4% of 1, 2-hexanediol, 0.01% of p-hydroxyacetophenone, 1% of hydrogenated lecithin, 0.5% of disodium EDTA, and the balance deionized water.
The preparation method of the soybean protein isolate-tea saponin camellia oil nanoemulsion comprises the following steps:
(1) mixing soybean protein isolate and tea saponin in a mass ratio of 2:1, dissolving in 0.04mol/L phosphate buffer solution with pH of 7.0, continuously stirring at room temperature of 25 deg.C for 3h to completely dissolve and hydrate, placing in a refrigerator at 5 deg.C overnight to obtain composite emulsifier, and adding water as water phase;
(2) uniformly mixing camellia oil and tsaoko essential oil, adding the mixture into a water phase, and homogenizing for 3min at 12000r/min by using a high-speed disperser to form a coarse emulsion; the mass fraction ratio of the composite emulsifier, the camellia oil and the tsaoko amomum fruit in the soybean protein isolate-tea saponin camellia oil nano emulsion is as follows: 3%: 10%: 0.5 percent;
(3) and (3) homogenizing and emulsifying the crude emulsion for 8 times by adopting a high-pressure homogenizer at the homogenizing pressure of 110MPa to obtain the soybean protein isolate-tea saponin camellia oil nanoemulsion, wherein the average particle size of the soybean protein isolate-tea saponin camellia oil nanoemulsion is 100-200 nm.
The preparation method of the camellia oleifera facial mask essence comprises the steps of firstly weighing and sequentially adding soybean protein isolate-tea saponin camellia oil nano emulsion, glycerol, butanediol, betaine, β -glucan, 2-hexanediol, p-hydroxyacetophenone, hydrogenated lecithin and EDTA disodium into water, uniformly stirring in an emulsifying pot to form a premixed solution, sequentially adding a dendrobium nobile stem extract, an aloe barbadensis leaf extract, a sophora flavescens extract, a fructus lycii extract and a echinacea purpurea extract, uniformly stirring to obtain the camellia oleifera facial mask essence, immersing a biogel type facial mask patch into the obtained camellia oleifera facial mask essence, taking out the mixture for 10-20 hours, and packaging to obtain the camellia oleifera facial mask essence.
Example 3-an camellia oleifera facial mask, comprising a biogel type facial mask patch and camellia oleifera facial mask essence, the camellia oleifera facial mask essence comprises, by mass, 5% of a soy protein isolate-tea saponin camellia oil nanoemulsion, 10% of glycerol, 5% of butanediol, 1.5% of betaine, β -glucan 3.5%, 0.8% of a stem extract of dendrobium nobile, 0.6% of an aloe barbadensis leaf extract, 0.6% of a sophora flavescens extract, 3% of a lycium barbarum extract, 0.8% of an echinacea purpurea extract, 0.3% of sodium hyaluronate, 3% of 1, 2-hexanediol, 0.01% of p-hydroxyacetophenone, 2% of hydrogenated lecithin, 0.6% of disodium EDTA, and the balance of deionized water.
The preparation method of the soybean protein isolate-tea saponin camellia oil nanoemulsion comprises the following steps:
(1) mixing soybean protein isolate and tea saponin with a mass ratio of 2:1, dissolving in 0.04mol/L phosphate buffer solution with pH of 7.0, continuously stirring at room temperature of 25 deg.C for 2h to completely dissolve and hydrate, placing in a refrigerator at 4 deg.C overnight to obtain composite emulsifier, and adding water as water phase;
(2) uniformly mixing the camellia oil and the tsaoko essential oil, adding the mixture into a water phase, and homogenizing for 2min at 11000r/min by adopting a high-speed disperser to form a coarse emulsion; the mass fraction ratio of the composite emulsifier, the camellia oil and the tsaoko amomum fruit in the soybean protein isolate-tea saponin camellia oil nano emulsion is as follows: 3%: 10%: 1 percent;
(3) and (3) carrying out 7 times of high-pressure micro-jet homogenizing and emulsifying on the crude emulsion by adopting a high-pressure homogenizer, wherein the homogenizing pressure is 100MPa, so as to obtain the soybean protein isolate-tea saponin camellia oil nano emulsion, and the average particle size of the soybean protein isolate-tea saponin camellia oil nano emulsion is 100-200 nm.
The preparation method of the oil tea facial mask essence comprises the steps of firstly weighing and sequentially adding soybean protein isolate-tea saponin camellia oil nano emulsion, glycerol, butanediol, betaine, β -glucan, 2-hexanediol, p-hydroxyacetophenone, hydrogenated lecithin and EDTA disodium into water, uniformly stirring in an emulsifying pot to form a premixed solution, sequentially adding a dendrobium nobile stem extract, an aloe barbadensis leaf extract, a sophora flavescens extract, a ningxia wolfberry extract and a echinacea purpurea extract, and uniformly stirring to obtain the oil tea facial mask essence.
And (3) immersing the biological gel type facial mask patch into the obtained oil tea facial mask essence for 10-20 h, taking out, and packaging to obtain the biological gel type facial mask patch.
Comparative example 1-the camellia oleifera facial mask essence according to example 3, except that the soy isolate protein-tea saponin camellia oil nanoemulsion is replaced by a camellia oil emulsion obtained by mixing and homogenizing camellia oil and tsaoko amomum fruit essential oil with tween as an emulsifier, and the rest steps and parameters are the same as those of example 3, so as to prepare the camellia oleifera facial mask.
Comparative example 2-the camellia oleifera facial mask essence according to example 3, except that 7% by mass of the soy isolate protein-tea saponin camellia oil nanoemulsion is added, and the rest steps and parameters are the same as those in example 3, so that the camellia oleifera facial mask is prepared.
Comparative example 3-the camellia oleifera facial mask essence according to the embodiment 3, which is characterized in that non-woven fabric facial mask paper is soaked in the camellia oleifera facial mask essence for 10-20 hours, and the camellia oleifera facial mask is obtained after being taken out and packaged, wherein the rest steps and parameters are the same as those in the embodiment 3.
(1) Stability of oil tea facial mask essence
And (3) respectively sampling the essential liquid of the camellia oleifera mask prepared in the examples 1-3 and the comparative examples 1 and 2 in equal amount, placing the essential liquid in a thermostat for observation, regularly observing and recording whether the phenomena of layering, color change and precipitation occur or not, and taking a commercially available mask as a control.
(2) Water supplement absorption effect
Randomly selecting 6 testees, uniformly sampling the oil tea facial masks prepared in examples 1-3 and comparative examples 1 and 2, uniformly coating the samples on the face, lightly massaging and absorbing the samples, taking down the samples after 8-10 min, recording the skin moisture value of the facial masks before use, and taking a commercially available facial mask as a control, wherein the results are as follows:
as can be seen from the table above, the oil tea facial mask essence prepared by the invention has good stability and shape, good fitting property, and small-molecule tea oil and other components are easier to be absorbed by skin, thus having good moisturizing effect. In comparative example 1, it can be seen that the soybean protein isolate-tea saponin camellia oil nanoemulsion has an important influence on the stability and absorption effect of the camellia oleifera facial mask essence. The comparative example 2 shows that the addition amount of the soybean protein isolate-tea saponin camellia oil nano emulsion needs to be controlled to ensure the stability of the camellia oleifera facial mask essence. Comparative example 3 shows that the combination of the bio-gel type mask patch and the tea oil mask essence can improve the distribution uniformity and stability of the essence, and further is more beneficial to skin absorption.
In the preparation method of the soybean protein isolate-tea saponin camellia oil nanoemulsion, the ratio TS of the tea saponin to the soybean protein isolate is analyzed: SPI, composite emulsifier mass fraction, camellia oil mass fraction and homogenizing pressure, as well as the rheological property of the nano emulsion and the Transmission Electron Microscope (TEM) observation of the nano emulsion, and the influence condition of the bean protein isolate-tea saponin camellia oil nano emulsion is analyzed and researched.
1. Effect of the ratio of tea Saponin to Soy protein isolate
The effect of the ratio of tea saponin to soy protein isolate on the mean particle size, PDI, zeta potential, turbidity of the camellia oil nanoemulsion is shown in FIG. 1. As the TS: SPI ratio increases, i.e., as the level of tea saponin increases, the mean particle size decreases (FIG. 1 a.) as the TS: SPI ratio increases from 1: 4 to 2:1, the mean particle size decreases from about 273nm to 194nm, and then remains relatively constant. the performance of the mixed emulsifier in the emulsion can be divided into the cases (a) that two emulsifiers may form complex molecules in the aqueous phase to adsorb to the oil droplet surface: (b) that two emulsifiers form a mixed layer at the oil-water interface, the smaller emulsifier molecules fill the zeta gap between the larger emulsifier molecules.Zeta gap, from FIG. 1a and FIG. 1d, the addition of tea saponin significantly reduces the mean particle size, PDI and particle size distribution range of the emulsion as compared to soy protein isolate alone. FIG. 1b shows that as the SPI ratio increases, the tendency of zeta potential increases from 1: 4: 6: 1, the mean particle size of the emulsion increases from 1: 6: 1 to 1, the particle size of the emulsion, the average particle size of the emulsion is significantly reduced, the potential of the emulsion prepared as the TS: 2-2 emulsion increases, the absolute potential of the emulsion increases, the emulsion as the viscosity of the emulsion increases, the absolute emulsion from the absolute ratio of the surfactant increases, the emulsion, the absolute emulsion, the emulsion becomes more the absolute emulsion becomes more the emulsion becomes more stable emulsion, the absolute emulsion becomes more stable emulsion, the emulsion becomes more stable as the emulsion becomes more stable.
In summary, the preferred ratio of tea saponin to soy protein isolate is 2:1 as the condition for preparing the camellia oil nano-emulsion.
2. Influence of the Compound emulsifier Mass fraction
The influence on various indexes of the camellia oil nanoemulsion is shown in figure 2. As can be seen from FIGS. 2a and 2d, different composite emulsifier mass fractions have significant effects on the average particle size, polydispersity index, and particle size distribution of the camellia oil nanoemulsion. The PDI represents the particle size distribution condition in the dispersion system, and the smaller the PDI value is, the smaller the particle size distribution range of the emulsion system is, the better the droplet dispersibility is, and the more stable the system is. When the addition amount of the composite emulsifier is increased, the average particle size and PDI value of the nano emulsion are remarkably reduced, and when the mass fraction of the composite emulsifier is increased from 1% to 3%, the average particle size is reduced from 792.6nm to 198.8nm, and the PDI is reduced from 0.458 to 0.14, so that the average particle size and the PDI value are remarkably changed. This is because the emulsifier is not enough to cover all the oil drop surfaces when the mass fraction of the emulsifier is small, and the non-embedded oil drops aggregate to form larger oil drops. It can also be seen from fig. 2d that the particle size distribution of the camellia oil nanoemulsion is narrowed with the increase of the mass fraction of the composite emulsifier, the particle size distribution is changed from double peaks to single peaks, and the particle size distribution continuously moves towards the direction of small particle size, which indicates that the emulsifier of the soy protein isolate-tea saponin composite can well embed camellia oil. When the mass fraction of the composite emulsifier reaches 3%, the mass fraction of the composite emulsifier is continuously increased, the changes of the average particle size, PDI and the like of the emulsion are not obvious, and the condition that when the mass fraction of the emulsifier is 3%, a compact interfacial film can be formed on the surface of an oil drop is shown.
As can be seen from FIG. 2b, the camellia oil nanoemulsion has a strong zeta potential value, and the negative surface potential on the droplet is a result of the carboxylic acid groups on the adsorbed saponin molecules. The larger the absolute value of the zeta potential, the more stable the emulsion. It can be seen that the addition of the small molecular surfactant tea saponin can significantly enhance the zeta potential value of the emulsion. As the addition amount of the compound emulsifier is increased, the absolute value of zeta potential is increased to-54 mV and then tends to be balanced. When the oil amount in the system is fixed, the particle size of the emulsion is a main factor influencing the turbidity, and the larger the average particle size of the emulsion is, the higher the turbidity of the system is, and the turbidity is consistent with the particle size change result. As can be seen from FIG. 2c, the turbidity of the emulsion was lowest when the mass fraction of the composite emulsifier was 3%.
In summary, 3% of the composite emulsifier by mass is preferably used as the condition for preparing the camellia oil nanoemulsion.
3. Influence of Camellia oil quality fraction
The influence of the mass fraction of camellia oil on the average particle size and PDI of the soy protein isolate-tea saponin camellia oil nanoemulsion is shown in fig. 3 a. The average particle size is a key indicator for determining whether the emulsion is a nanoemulsion. When the mass fraction of the camellia oil is increased from 5% to 10%, the average particle size and the polydispersity index (PDI) are not obviously changed, and the average particle size of the camellia oil nanoemulsion is kept about 200nm and the PDI is kept within 0.15. When the mass fraction of the camellia oil is increased to 15%, the average particle size and the PDI are remarkably increased, and gradually increased as the mass fraction of the camellia oil is increased, and when the mass fraction of the camellia oil is increased to 25%, the average particle size of the nanoemulsion is 364.6nm and the PDI is 0.614. The PDI represents the particle size distribution condition in the dispersion system, and the smaller the PDI value is, the smaller the particle size distribution range of the emulsion system is, the better the droplet dispersibility is, and the more stable the system is. As can be seen from the particle size distribution diagram of FIG. 3d, when the mass fraction of camellia oil is 25%, a "double peak" appears, which indicates that the excessive oil phase cannot be embedded well by the emulsifier, and oil droplets are easily aggregated, thereby causing the particle size of the emulsion to increase, causing the austenite aging phenomenon, which is not favorable for the stability of the emulsion. When the mass fraction of the camellia oil is 20%, the particle size distribution is too wide, the PDI value is large, and the emulsion is not favorable for stability. When the mass fraction of the camellia oil is 5% and 10%, the particle size distribution is narrowest, the particle size of the emulsion is smallest, and the emulsion is most stable. Zeta potential for characterizing oilsThe electrostatic repulsion between the droplets is such that the emulsion stability is weak when the zeta potential absolute value is less than 30mV and strong when the zeta potential absolute value is greater than 30 mV. As can be seen from FIG. 3b, the absolute value of zeta potential decreases with increasing amount of camellia oil, and the absolute value of zeta potential is the largest at a mass fraction of 10%, indicating that high oil amount is not favorable for stabilizing emulsion. At lower zeta potentials, the steric repulsion between dispersed oil droplets may not be sufficient to overcome the intermolecular attraction between the droplets and the energy barrier (i.e., van der Waals and hydrophobic attractions)]. As can be seen in FIG. 3c, the turbidity of the emulsion was at a minimum at a camellia oil mass fraction of 10%, and increased as the amount of oil continued to increase.
In order to ensure the stability of the nano emulsion, the camellia oil mass fraction is preferably 10% through comprehensive analysis.
4. Influence of high-pressure microjet homogenization pressure
The high-pressure microjet homogenization pressure has an important influence on the preparation of the nano emulsion, mainly because strong mechanical acting force can be generated in the high-pressure microjet homogenization process. As can be seen from FIGS. 4a and 4d, the particle size of the camellia oil nanoemulsion tends to decrease with the increase of the homogenizing pressure, the particle size distribution becomes narrower, and the particle size range moves toward the direction of small particle size. The average particle size of the emulsion of the present invention decreases with increasing pressure, and when the homogenization pressure is 100MPa, the average particle size and PDI value of the emulsion are the smallest, and the emulsion is the most stable. When the homogenizing pressure is too high, the droplets of the emulsion are too small, resulting in an increased brownian motion rate between particles and an increased number of collisions, which may break the interfacial film between oil and water to cause aggregation of the emulsion. In addition, when the oil drops are too small, the specific surface area of the oil drops is increased, the required amount of the emulsifier is increased, and if the amount of the emulsifier is not enough to cover the surfaces of the oil drops, the oil drops are easy to aggregate, and the particle size of the emulsion is increased. In addition, high pressures can cause denaturation of the proteins and the denatured protein molecules interact to form aggregates, thereby causing unstable aggregation of the emulsion. As can be seen from FIG. 4b, the absolute value of zeta potential increases slightly with increasing pressure, and is greatest at a pressure of 100 MPa. As can be seen in FIG. 4c, the turbidity gradually decreased with increasing pressure, consistent with the particle size change. The turbidity of the emulsion is the greatest at a pressure of 20MPa and the minimum at a pressure of 100 MPa.
To sum up, in order to ensure the stability of the nano emulsion, the high-pressure micro-jet homogenization pressure is preferably 100 MPa.
5. Determination of the rheological Properties of the nanoemulsions
The viscosity change curve of the nano-emulsion system can reflect the dynamic stability of the emulsion to a certain extent. As can be seen from the viscosity curve of the camellia oil nanoemulsion in FIG. 5, the viscosity of the emulsion is very small, which can be called as a low-viscosity system, and the viscosity of the emulsion gradually decreases with the increase of the shear rate, at a smaller shear rate (0-100 s)-1) During the shearing process, the viscosity of the camellia oil nano emulsion is reduced sharply, which is the characteristic of shear thinning because the flocculated oil drops are separated from each other in the shearing process. As the shear rate continues to increase, the viscosity of the camellia oil nanoemulsion does not change significantly because the rate at which the emulsion system forms and collapses the flocs remains constant, and the flocs have a relatively stable state. The invention shows that the kinetic stability of the camellia oil nanoemulsion prepared by high-pressure micro-jet homogenization is better from the aspect of rheological property.
6. Transmission Electron Microscopy (TEM) observation of nanoemulsions
FIG. 6 is a transmission electron microscope image of camellia oil nanoemulsion, from which it can be seen visually that the emulsion droplets are uniformly dispersed, the moldability is good, and the number of small droplets is large. According to TEM images, the soybean protein isolate-tea saponin composite emulsifier can well embed camellia oil under the high-pressure microjet homogenization effect to form a plurality of small-particle-size emulsion drops, the particle size of the nano emulsion is small, flocculation and aggregation among the liquid drops can be prevented, and the stability of an emulsion system is facilitated.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (9)
1. An oil tea facial mask essence is characterized by comprising, by mass, 4-6% of soybean protein isolate-tea saponin camellia oil nanoemulsion, 8-14% of glycerol, 3-8% of butanediol, 1-2% of betaine, 3-4% of β -glucan, 0.5-1% of a stem extract of dendrobium nobile, 0.5-1% of a leaf extract of aloe barbadensis, 0.5-1% of a radix sophorae flavescentis extract, 1-5% of a fructus lycii extract, 0.5-1% of an echinacea purpurea extract, 0.2-0.4% of sodium hyaluronate, 2-4% of 1, 2-hexanediol, 0.01-0.02% of p-hydroxyacetophenone, 1-3% of hydrogenated lecithin, 0.5-1% of disodium EDTA and the balance of water.
2. The oil tea facial mask essence according to claim 1, characterized in that: the soybean protein isolate-tea saponin camellia oil nanoemulsion is prepared by mixing soybean protein isolate and tea saponin to be used as a composite emulsifier, mixing the composite emulsifier with camellia oil and tsaoko essential oil, and homogenizing.
3. The oil tea facial mask essence according to claim 2, characterized in that: the preparation method of the soybean protein isolate-tea saponin camellia oil nanoemulsion comprises the following steps:
(1) mixing and dissolving soybean protein isolate and tea saponin in a buffer solution, continuously stirring for 1-3 hours at room temperature to completely dissolve and hydrate the mixture, putting the mixture in a refrigerator at 3-5 ℃ overnight to obtain a composite emulsifier, and adding water as a water phase;
(2) uniformly mixing camellia oil and tsaoko essential oil, adding the mixture into a water phase, and homogenizing for 1-3 min at 10000-12000 r/min by using a high-speed disperser to form a coarse emulsion;
(3) and (3) homogenizing and emulsifying the crude emulsion for 6-8 times by adopting a high-pressure homogenizer, wherein the homogenizing pressure is 90-110 MPa, so as to obtain the soybean protein isolate-tea saponin camellia oil nano emulsion.
4. The oil tea facial mask essence according to claim 3, characterized in that: the mass ratio of the soybean protein isolate to the tea saponin is 2: 1.
5. The oil tea facial mask essence according to claim 3, characterized in that: the mass fraction ratio of the composite emulsifier, the camellia oil and the tsaoko amomum fruit in the soybean protein isolate-tea saponin camellia oil nano emulsion is as follows: 3%: 10%: (0.5 to 1)%.
6. The oil tea facial mask essence according to claim 3, characterized in that: the buffer was 0.04mol/L, pH 7.0 phosphate buffered saline.
7. The oil tea facial mask essence according to claim 3, characterized in that: in the step (3), the homogenizing pressure is 100 MPa.
8. The oil tea facial mask essence according to claim 1, characterized in that: the average particle size of the soybean protein isolate-tea saponin camellia oil nano emulsion is 100-200 nm.
9. An oil tea mask containing the oil tea mask essence according to any one of claims 1 to 8, characterized in that: comprises a biological gel type facial mask paster and oil tea facial mask essence.
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