CN113041174B - Camellia oleifera seed oil essence containing hydrolyzed vegetable protein and its preparation method and application - Google Patents

Abstract

The invention discloses a camellia seed oil essence containing hydrolyzed vegetable proteins and a preparation method thereof, and belongs to the technical field of skin care products. According to the camellia seed oil essence containing the vegetable proteins, the refined camellia seed oil with proper content is used for replacing the camellia seed oil prepared conventionally as an effective component, so that the odor is greatly reduced, and the skin compatibility is good; the camellia seed oil is rich in sterols, tocopherols, squalene and other antioxidant nutrients, so that symptoms such as wrinkles, chapping and the like of human skin can be effectively repaired; the white appearance of natural plant products in the application process can be effectively relieved by adding the hydrolyzed pea protein with specific content into the product components, so that the obtained oil tea seed oil essence has light, non-sticky and lubricating texture. The invention also provides a preparation method of the product, which has simple operation steps and can realize industrialized mass production. The invention also provides application of the product in preparing skin care products.

Description

Camellia oil essence containing hydrolyzed plant protein and preparation method and application thereof

Technical Field

The invention relates to the technical field of skin care products, and in particular to a camellia oil essence containing hydrolyzed plant protein and a preparation method and application thereof.

Background Art

The skin is the largest organ in the human body, and it has the functions of protection, excretion, regulating body temperature, and sensing external stimuli. The skin is often stimulated by various factors such as oxidation, dryness, and ultraviolet rays, and is easily damaged. If you do not pay attention to maintenance at this time, the skin condition will deteriorate sooner or later. Dryness, dehydration, spots, fine lines, etc. are the most common problems. For example, the pace of modern life is busy and dynamic. Long-term fatigue and running around require you to maintain vigorous energy anytime and anywhere. Sweat and grease are thickly covered on the surface of the skin, increasing the burden on the surface skin, and completely blocking the pores. In order to discharge more oil, the pores will gradually become larger and more obvious, and the skin will gradually become rough, making the skin more uneven and uneven.

In order to protect the skin from damage and make it glow, it is necessary to pay attention to daily skin care. To truly protect the skin, the skin needs to be softened so that the stratum corneum can absorb more water, and the penetration and absorption capacity will be enhanced to allow nutrients to come into close contact with the epidermal cells and be deeply absorbed, thereby activating the skin and making it smooth, healthy and full of vitality.

As a skin care product rich in concentrated and highly nutritious ingredients, essence has gradually become the mainstream in the field of skin care products because of its significant anti-wrinkle, anti-aging, firming, moisturizing and whitening effects. However, many artificial synthetic additives or auxiliaries are inevitably added to existing essences. Although they can ensure that the products have certain specific properties (anti-corrosion and anti-deterioration, unique smell, fashionable appearance), they often ignore the skin care effects that the products themselves focus on, and also ignore the comfort of the skin during use. Even some products will have certain negative effects on the skin after long-term use. For these reasons, people began to use some natural plant ingredients to replace these chemical synthetic substances. However, it is not the case that the more types and contents of natural plants added, the better. People have found that some cosmetics rich in natural ingredients are prone to whitening of the skin after use. Natural ingredients, like synthetic substances, cannot be added blindly.

Camellia oil is a common plant extract, and its fatty acid composition and glyceride configuration are beneficial to human health. In addition, the substance contains a variety of soluble vitamins. If such active substances are used in skin care products, not only can the products prepared by the camellia oil be more suitable for human skin, but also the products can be given the characteristics of moisturizing and repairing the skin, thereby improving the texture of the products. CN109568202A discloses a tea oil moisturizing essence, which selects camellia oil, glycerin, oat peptides, wild soybean seed extract and other raw materials in proportion, wherein the camellia oil plays the role of cleaning, anti-inflammatory, protecting, moisturizing wound surface and softening the skin, and the prepared product can effectively play the role of moisturizing and anti-aging. CN109528526A discloses a plant essence skin conditioner and its preparation method and oil control and acne removal application. The conditioner product is made of natural ingredients such as jasmine water, dandelion extract, chrysanthemum extract, camellia oil and linseed oil as raw materials, and each Chinese medicine formula follows the principle of monarch, minister, assistant and envoy, so that the product has good oil control and skin tightening effects.

However, existing products often ignore the defects of camellia oil itself. Camellia oil has its inherent unpleasant smell, but existing products often only use it as an ordinary efficacy agent or oily matrix, without considering its content or special treatment; and the camellia oil prepared by the existing traditional method has many impurities, unstable properties and easy oxidation, so it will further produce some sour and smelly smells after storage or preparation into products. Therefore, even if pure natural skin care products with high skin care effects are prepared using camellia oil, such products are difficult to be favored by consumers due to their discordant smell; and if the odor of the product is removed by subsequent processing of the skin care products or adding deodorizing agents, the production cost of the product will increase and the economic benefits will become low.

Summary of the invention

Based on the deficiencies of the prior art, the purpose of the present invention is to provide a camellia oil essence containing hydrolyzed plant protein, which is rich in natural plant ingredients and does not have the strong smell unique to traditional camellia oil products. It has excellent skin moisturizing, repairing and whitening effects, and will not cause whitening after use.

In order to achieve the above object, the technical solution adopted by the present invention is:

A camellia oleifera oil essence containing hydrolyzed plant protein comprises the following components: plant extract, moisturizer, skin conditioner and balance water; the plant extract comprises 0.1-0.5% of hydrolyzed pea protein and 0.3-0.7% of refined camellia oleifera seed oil by weight of the camellia oleifera oil essence.

In the components of the camellia oil essence containing hydrolyzed plant protein of the present invention, an appropriate amount of refined camellia oil is used as an effective ingredient instead of traditionally prepared camellia oil, so that the odor is greatly reduced and the skin compatibility is good; the camellia oil is rich in antioxidant nutrients such as sterols, tocopherol, squalene, etc., which can effectively repair the wrinkles, cracks and other symptoms of human skin; by adding a specific amount of hydrolyzed pea protein to the product components in combination with a moisturizer and a skin conditioner, the whitening phenomenon of natural plant products during the application process can be effectively alleviated, so that the obtained camellia oil essence has a light, non-greasy and lubricated texture.

Preferably, the refined camellia oil is obtained by low-temperature refining, which includes degumming, deacidification, decolorization, deodorization and dewaxing steps, and the temperature of the deodorization step is not higher than 150°C.

More preferably, the acid value of the refined tea oil seeds is less than 0.5 mg.KOH/g, the peroxide value is less than 1.5 mmol/kg, and the mass percentage of water and volatile substances in the refined tea oil seeds is less than 0.15%.

The inventors have found through multiple tests that the traditional camellia oil preparation method often uses a high temperature method for refining. The products obtained by such methods not only have many impurities and a strong odor, but also cause the loss or even inactivation of nutrients such as sterols, which is extremely unfavorable for the use of camellia oil in subsequent skin care products. The refined camellia oil of the present invention is refined by a low-temperature multi-step method, and at the same time, the physical and chemical indicators of the prepared camellia oil are strictly limited, and the content of the odor and instability source (free fatty acids, etc.) is controlled, which can not only eliminate the strong odor, but also further enhance its antioxidant and moisturizing ability in the prepared camellia oil essence.

More preferably, the refined camellia oil can be organic camellia oil produced by Guangdong Baohua Agricultural Science and Technology Co., Ltd.

The product has high purity, low odor and high stability, and can be effectively used in the camellia seed oil essence of the present invention.

Preferably, the plant extract comprises 0.2-0.4% of hydrolyzed pea protein and 0.4-0.6% of refined camellia oil by weight of the camellia oil essence;

More preferably, the plant extract comprises 0.3% of hydrolyzed pea protein and 0.5% of refined camellia oil by weight of the camellia oil essence.

The camellia oil essence containing hydrolyzed plant protein in the above ratio not only has a more harmonious smell, but also has a better moisturizing and skin care effect and better compatibility with the skin.

Preferably, the moisturizing agent includes 1,2-pentanediol, butylene glycol, 1,2-hexanediol, glycerin, ceramide-3 and hydrogenated phospholipids.

More preferably, the moisturizer includes 0.5-1.5% of 1,2-pentanediol, 2.5-3.5% of butylene glycol, 0.4-0.6% of 1,2-hexanediol, 0.05-0.15% of glycerol, 0.02-0.03% of ceramide-3 and 0.02-0.03% of hydrogenated phospholipids, based on the mass of the camellia oil essence.

Among the moisturizers, 1,2-pentanediol and butanediol are typical synthetic small molecule moisturizers in cosmetic ingredients, which have the effects of water locking and antibacterial, and are non-irritating to human skin; ceramide-3 is a lipid substance, which is similar to the material structure that constitutes the stratum corneum of the skin, can quickly penetrate into the skin, and combine with the water in the stratum corneum to form a mesh structure, lock in moisture, and have a good effect on skin moisturizing and repairing. It is an important skin-activating ingredient in the stratum corneum, which can enhance the skin barrier and rebuild cells; hydrogenated lecithin is a partial hydrolyzate of lecithin, which has better hydrophilicity than lecithin, can absorb moisture for human skin and hair, and can promote the penetration of other nutrients. By synergistically matching the above components, the obtained camellia oil essence product can fully increase the water content of the skin, can be quickly absorbed by the skin after use, and at the same time, each component is mild in nature and non-irritating to the skin.

Preferably, the skin conditioning agent comprises niacinamide, sodium hyaluronate crosspolymer, palmitoyl tripeptide-1, dipotassium glycyrrhizinate, β-glucan and inulin.

More preferably, the skin conditioner comprises 3-5% niacinamide, 0.5-1.5% sodium hyaluronate cross-linked polymer, 0.05-0.15% palmitoyl tripeptide-1, 0.1-0.3% dipotassium glycyrrhizinate, 0.1-0.3% β-glucan and 0.001-0.003% inulin, based on the mass of the camellia oil essence.

Among the skin conditioners, niacinamide has high safety and is also a basic vitamin supplement in clinical dermatology. It has good therapeutic effects in inhibiting melanin deposition and anti-inflammation, and can also maintain skin moisture, promote dermal microcirculation, and greatly reduce or eliminate skin aging, reduce the damage of free radicals to the skin, and play a role in preventing aging, repairing the skin and reducing facial dullness; sodium hyaluronate is an acidic mucopolysaccharide that naturally exists in the corneal skin and can absorb 1000 times its own weight in water to retain skin moisture and prevent water loss through the epidermis. When the skin is damaged, it can act as a skin barrier, while increasing the skin's luster and improving skin nutrient metabolism. It can make the skin soft, smooth, wrinkle-free and elastic; Palmitoyl tripeptide-1 is a combination of wheat and soy protein, which can stimulate the synthesis of collagen in the skin; Dipotassium glycyrrhizinate is mainly glycyrrhizin (glycyrrhizic acid) from the root and stem of licorice, which has anti-irritation, oil control, anti-redness, swelling, anti-inflammatory and healing effects; β-glucan, as a natural plant polysaccharide, is generally used as a skin conditioner and moisturizer in cosmetics, and this ingredient also has certain anti-allergic and anti-inflammatory effects; Inulin is rich in triterpenoid compounds with anti-inflammatory effects, which can treat dermatitis, inhibit skin-induced allergies, eliminate free radicals, and have a certain inhibitory effect on melanocytes, which can relieve aging and whiten and remove spots. Through the combination of the above components, the camellia seed oil essence finally obtained can achieve multiple care for the skin. In addition to the basic moisturizing and whitening effects, it can also improve various skin properties.

Preferably, the components of the camellia oil essence containing hydrolyzed plant protein also include an emulsifier, an antioxidant and a buffer.

More preferably, the emulsifier includes PEG-20 methyl glucose sesquistearate, carbomer, polysorbate-20, sucrose stearate and polyglyceryl-10 stearate.

Through the compounding of the above-mentioned emulsifiers, not only can the components in the product be fully mixed and rapidly emulsified, but also the product can be guaranteed to have good stability and not be easily stratified.

More preferably, the emulsifier includes 0.05-0.15% of PEG-20 methyl glucose sesquistearate, 0.05-0.15% of carbomer, 0.05-0.15% of polysorbate-20, 0.02-0.03% of sucrose stearate and 0.02-0.03% of polyglycerol-10 stearate, based on the mass of the camellia oil essence.

Preferably, the antioxidant comprises sodium hyaluronate and p-hydroxyacetophenone, and the buffer comprises citric acid and sodium citrate.

More preferably, the antioxidant comprises 0.01-0.03% sodium hyaluronate and 0.3-0.5% p-hydroxyacetophenone based on the mass of the camellia oil essence, and the buffer comprises 0.3-0.5% citric acid and 0.3-0.5% sodium citrate based on the mass of the camellia oil essence.

By adding the above-mentioned appropriate functional additives to the camellia oil essence, not only can the physical properties of the product be made more stable, but also the functionality of the product can be enriched, and a certain anti-aging and oxidation effect can be exerted on the user's skin.

Preferably, the camellia oil essence containing hydrolyzed plant protein comprises the following components in percentage by weight: 0.3% hydrolyzed pea protein, 0.5% refined camellia oil, 0.1% PEG-20 methyl glucose sesquistearate, 1% 1,2-pentanediol, 0.02% sodium hyaluronate, 3.1% butylene glycol, 0.4% p-hydroxyacetophenone, 4% niacinamide, 1% sodium hyaluronate cross-linked polymer, 0.4% citric acid. , 0.4% sodium citrate, 0.5% 1,2-hexanediol, 0.1% glycerin, 0.1% carbomer, 0.1% polysorbate-20, 0.1% palmitoyl tripeptide-1, 0.2% dipotassium glycyrrhizate, 0.2% beta-glucan, 0.002% inulin, 0.025% ceramide-3, 0.025% hydrogenated lecithin, 0.025% sucrose stearate and 0.025% polyglyceryl-10 stearate.

The camellia oil essence obtained by the above ratio has excellent skin moisturizing, whitening and repairing effects. The product has no special unharmonious odor and no obvious whitening phenomenon after use.

Another object of the present invention is to provide a method for preparing the camellia oil essence containing hydrolyzed plant protein, comprising the following steps:

(1) soaking the hydrolyzed pea protein in water until it is moistened, heating and stirring the mixture evenly while keeping the temperature constant to obtain a mixture A;

(2) homogenizing the mixture A obtained in step (1) and sequentially adding refined camellia oil and PEG-20 methyl glucose sesquistearate, homogenizing and emulsifying, vacuum defoaming, cooling, adding 1,2-pentanediol and sodium hyaluronate pre-mixed and dispersed at room temperature, and stirring and mixing until completely dissolved, to obtain a mixture B;

(3) mixing an appropriate amount of butanediol and p-hydroxyacetophenone, heating and stirring to obtain a uniform mixture, adding the mixture to the mixture B obtained in step (2), stirring until completely dissolved, and cooling to obtain a mixture C;

(4) Dissolving ceramide-3, hydrogenated lecithin, sucrose stearate and polyglyceryl-10 stearate in water to obtain a mixture D;

(5) Niacinamide, sodium hyaluronate cross-linked polymer, citric acid, sodium citrate, 1,2-hexanediol, glycerol, the remaining amount of butylene glycol, carbomer, polysorbate-20, palmitoyl tripeptide-1, dipotassium glycyrrhizinate, β-glucan, inulin and mixture D are sequentially added to the mixture C obtained in step (3) and stirred until completely dissolved, and cooled to obtain the camellia oil essence containing hydrolyzed plant protein.

The preparation method of the camellia oil essence containing hydrolyzed plant protein of the present invention has simple operation steps and can realize industrial large-scale production.

Preferably, the heating temperature in step (1) is 70-80°C, and the insulation time is 15-25 minutes; the heating temperature in step (1) is 55-65°C.

Preferably, the temperature after cooling in step (2) is below 60°C, the temperature after cooling in step (3) is below 45°C, and the temperature after cooling in step (5) is below 35°C.

Under the above conditions, each component is fully dissolved and mixed evenly, and the prepared product has higher stability.

Another object of the present invention is to provide the use of the camellia oil essence containing hydrolyzed plant protein in the preparation of skin care products.

The camellia seed oil essence of the invention has good moisturizing and whitening effects, harmonious odor and strong skin adaptability, can be directly used on the skin, and can also be further processed into a variety of skin care products according to needs, and various products will not cause whitening after use.

The beneficial effects of the present invention are as follows: the present invention provides a camellia oil essence containing hydrolyzed plant protein, the product uses an appropriate amount of refined camellia oil instead of traditionally prepared camellia oil as an effective ingredient, the odor is greatly reduced, and the skin compatibility is good; the camellia oil is rich in antioxidant nutrients such as sterols, tocopherol, squalene, etc., which can effectively repair the wrinkles, cracks and other symptoms of human skin; by adding a specific amount of hydrolyzed pea protein to the product components and matching it with a moisturizer and a skin conditioner, the whitening phenomenon of natural plant products during the application process can be effectively alleviated, so that the obtained camellia oil essence has a light, non-greasy and lubricated texture. The present invention also provides a preparation method of the camellia oil essence containing hydrolyzed plant protein, the preparation method has simple operation steps, and can realize industrial large-scale production. The present invention also provides the application of the camellia oil essence containing hydrolyzed plant protein in the preparation of skin care products.

DETAILED DESCRIPTION

In order to better illustrate the purpose, technical solutions and advantages of the present invention, the present invention will be further described below in conjunction with specific embodiments, the purpose of which is to understand the contents of the present invention in detail rather than to limit the present invention.

Embodiments 1 to 5

The embodiments of the camellia oil essence containing hydrolyzed plant protein of the present invention, the formula of the camellia oil essence containing hydrolyzed plant protein in each embodiment is shown in Table 1, the refined camellia oil is 25° organic camellia oil produced by Guangdong Baohua Agricultural Science and Technology Co., Ltd., its acid value is 0.13mg.KOH/g, the peroxide value is 1.1mmol/kg, and the mass percentage of water and volatile matter in the refined camellia oil seeds is 0.11%; the refined camellia oil is obtained by low-temperature refining, the low-temperature refining includes degumming, deacidification, decolorization, deodorization and dewaxing steps, and the temperature of the deodorization step is 150°C.

The method for preparing the camellia oil essence containing hydrolyzed plant protein comprises the following steps:

(1) Soaking the hydrolyzed pea protein in water until it is moist, heating it to 75° C. and keeping it warm for 20 minutes, and stirring it evenly to obtain a mixture A;

(2) homogenizing the mixture A obtained in step (1) and sequentially adding refined camellia oil and PEG-20 methyl glucose sesquistearate, homogenizing and emulsifying for 5 minutes, vacuum defoaming, naturally cooling to 60° C., adding 1,2-pentanediol and sodium hyaluronate pre-mixed and dispersed at room temperature, and stirring and mixing for 10 minutes until completely dissolved, to obtain a mixture B;

(3) Mixing an appropriate amount of butanediol and p-hydroxyacetophenone, heating to 60° C. and stirring evenly, adding the mixture to the mixture B obtained in step (2), stirring for 5 min until completely dissolved, and cooling to below 45° C. to obtain a mixture C;

(4) Dissolving ceramide-3, hydrogenated lecithin, sucrose stearate and polyglyceryl-10 stearate in water to obtain a mixture D;

(5) Niacinamide, sodium hyaluronate cross-linked polymer, citric acid, sodium citrate, 1,2-hexanediol, glycerol, the remaining amount of butylene glycol, carbomer, polysorbate-20, palmitoyl tripeptide-1, dipotassium glycyrrhizinate, β-glucan, inulin and mixture D are sequentially added to the mixture C obtained in step (3) and stirred until completely dissolved, cooled to below 35° C., inspected, filled and packaged to obtain the white translucent liquid camellia oil essence containing hydrolyzed plant protein.

The components and properties of the products obtained in Examples 1 to 5 were analyzed, and the test results are shown in Table 2. The test method is QB/T 2660-2004 lotion. The components and physical and chemical tests of each product meet the indicators, and the product inspection is qualified, and can be industrialized for production and sales.

Table 1

Table 2

Comparative Examples 1 to 4

The difference between the camellia oil essences described in Comparative Examples 1 to 4 and Example 1 is only the difference in formula. The formulas of the camellia oil essences in each comparative example are shown in Table 3.

Table 3

Comparative Example 5

The only difference between this comparative example and Example 1 is that the camellia oil used in this comparative example is commercially available ordinary camellia oil that has not been low-temperature refined, the acid value of the camellia oil is 0.37 mg.KOH/g, the peroxide value is 2.6 mmol/kg, and the mass percentage of water and volatile substances in the refined camellia oil seeds is 0.18%.

Effect Example 1

In order to verify the efficacy of the camellia oil essence of the present invention, the camellia oil essences obtained in Examples 1 to 5 and Comparative Examples 1 to 5 were tested for moisturizing effects.

Test method:

100 volunteers aged 20 to 45 were screened. The volunteers had no serious systemic diseases, no immunodeficiency or autoimmune diseases, no active allergic diseases, no history of severe allergies to cosmetics, had not used hormone drugs and immunosuppressants in the past month, and had not participated in other clinical test subjects. The volunteers were divided into 10 groups, 10 people in each group, and there was no significant difference between the groups. Before the test (i.e., the products obtained by the embodiments of the present invention and the comparative examples were not used), the test was conducted once, and the tested essence was used after cleansing every night. The timing was started from the time when the sample was used, and the stratum corneum moisture content and skin glossiness of the test area were measured in 28 days. The tested products were the skin care products of Examples 1 to 5 and Comparative Examples 1 to 6, respectively. The stratum corneum moisture content and skin glossiness were tested using the skin moisture test probe Cornometer CM825 and the skin gloss test probe Skin-Glossymeter GL200, respectively.

Results Data Analysis:

a. Calculation of moisture and gloss changes

The measured value of the test site after using the sample was subtracted from the blank control value of the test site before use to obtain the average change in stratum corneum moisture content and skin glossiness of the test site before and after using the product. The calculation formula is as follows: (1) and (2).

(1) T = ( _Mx - _Mo )/10; (2) G = ( _Nx - _No )/10; where: T is the change in skin moisture; _Mx is the measured value of skin moisture after using the product for 28 days; _Mo is the blank control measured value of skin moisture; G is the change in skin gloss; _Nx is the measured value of skin gloss after using the product for 28 days; _No is the blank control measured value of skin gloss.

The test results are shown in Table 4.

Table 4

From the test results in Table 4, it can be seen that the products obtained in Examples 1 to 5 have a significant effect on improving the moisture content and glossiness of the user's skin, among which the improvement degree of the products obtained in Examples 1 to 3 is higher than that of the products in Examples 4 and 5. From the test results of the products obtained in Comparative Examples 1 to 5, it can be seen that the amount of plant extract has a great influence on the moisturizing and whitening effects of the products, especially when the content of camellia seed oil and hydrolyzed pea protein is insufficient, the improvement of skin moisture content and glossiness after use of the product is significantly weakened, but when their content gradually increases to outside the preferred range, the moisturizing and whitening effects of the product are not greatly improved, but instead increase the production cost.

Effect Example 2

In order to detect the user experience of the camellia oil essence containing hydrolyzed plant protein of the present invention, the user experience test was conducted on the 10 products of Examples 1 to 5 and Comparative Examples 1 to 5, that is, a return visit survey was conducted on the volunteers described in Effect Example 1, and statistics were collected on whether the volunteers had whitening phenomenon after use, odor evaluation, and skin comfort evaluation. The total score of odor evaluation is 5 points, and the scoring standard of 5 is: the odor is harmonious and natural, with a pleasant aroma; the scoring standard of 4 is: the odor is harmonious and has a certain aroma; the scoring standard of 3 is: the odor is general, with a certain special odor, but it is generally coordinated and not offensive; the scoring standard of 2 is: there is a certain disharmonious odor, the coordination is weak, and it is generally adapted after getting used to it; the scoring standard of 1 point is: the disharmonious odor is obvious, offensive, and it is impossible to adapt. The total score of skin comfort evaluation is 5 points, and the scoring standard of 5 is: comfortable texture when used, and the skin absorbs quickly after use; the scoring standard of 4 is: good texture when used, and the skin absorbs quickly after use; the scoring standard of 3 is: average texture when used, and the skin absorbs quickly after use (generally the same as the commercially available essence); the scoring standard of 2 is: bad texture when used (not delicate or smooth), or slow absorption after use; the scoring standard of 1 is: poor texture when used, and slow skin absorption after use. The above scores are counted and the average is taken, and the results are shown in Table 5.

Table 5

It can be seen from the table that only by adding an appropriate amount of hydrolyzed pea protein to the product can the obtained product avoid the whitening phenomenon that occurs after use of traditional products. As its content gradually increases and exceeds the preferred range, the increase in the efficacy of the product becomes weaker, and the production cost increases instead. The special smell of the product mainly comes from camellia oil. Compared with the product obtained in Comparative Example 5 using traditional commercially available camellia oil raw materials, the overall smell of the products prepared in Examples 1 to 5 is pleasant, and the scores are all above 4.5 points. In general, the products obtained in Examples 1 to 3 have a good use experience and excellent skin quality improvement effect, among which the product obtained in Example 1 has the best effect.

Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention rather than to limit the scope of protection of the present invention. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solution of the present invention can be modified or replaced by equivalents without departing from the essence and scope of the technical solution of the present invention.

Claims (4)

1. The camellia seed oil essence containing the hydrolyzed vegetable protein is characterized by comprising the following components: plant extract, humectant, skin conditioning agent, emulsifier, antioxidant, buffer and balance water; the plant extract comprises hydrolyzed pea protein accounting for 0.3 percent of the mass of the camellia seed oil essence and refined camellia seed oil accounting for 0.5 percent of the mass of the camellia seed oil essence; the humectant comprises 0.5-1.5% of 1, 2-pentanediol, 2.5-3.5% of butanediol, 0.4-0.6% of 1, 2-hexanediol, 0.05-0.15% of glycerol, 0.02-0.03% of ceramide-3 and 0.02-0.03% of hydrogenated lecithin by mass of the camellia seed oil essence; the skin conditioner comprises 3-5% of nicotinamide, 0.5-1.5% of sodium hyaluronate crosslinked polymer, 0.05-0.15% of palmitoyl tripeptide-1, 0.1-0.3% of dipotassium glycyrrhizinate, 0.1-0.3% of beta-glucan and 0.001-0.003% of inulin, wherein the nicotinamide, the sodium hyaluronate crosslinked polymer, the palmitoyl tripeptide-1, the dipotassium glycyrrhizinate, the beta-glucan and the inulin account for the mass of the camellia seed oil essence; the emulsifier comprises 0.05-0.15% of PEG-20 methyl glucose sesquistearate, 0.05-0.15% of carbomer, 0.05-0.15% of polysorbate-20, 0.02-0.03% of sucrose stearate and 0.02-0.03% of polyglycerol-10 stearate by mass of the oil tea seed oil essence; the antioxidant comprises sodium hyaluronate accounting for 0.01-0.03% of the mass of the camellia seed oil essence and p-hydroxyacetophenone accounting for 0.3-0.5%, and the buffer comprises citric acid accounting for 0.3-0.5% of the mass of the camellia seed oil essence and sodium citrate accounting for 0.3-0.5%;

the refined oil tea seed oil is obtained through low-temperature refining, wherein the low-temperature refining comprises the steps of degumming, deacidification, decolorization, deodorization and dewaxing, and the temperature of the deodorization step is not higher than 150 ℃; the acid value of the refined tea oil seeds is less than 0.5mg.KOH/g, the peroxide value is less than 1.5mmol/kg, and the mass percentage of moisture and volatile substances in the refined tea oil seeds is less than 0.15%.

2. The plant protein containing camellia seed oil essence of claim 1, wherein the plant protein containing camellia seed oil essence comprises the following components in percentage by mass: 0.3% hydrolyzed pea protein, 0.5% refined camellia seed oil, 0.1% PEG-20 methyl glucagons sesquistearate, 1%1, 2-pentanediol, 0.02% sodium hyaluronate, 3.1% butylene glycol, 0.4% p-hydroxyacetophenone, 4% nicotinamide, 1% sodium hyaluronate cross-linked polymer, 0.4% citric acid, 0.4% sodium citrate, 0.5%1, 2-hexanediol, 0.1% glycerol, 0.1% carbomer, 0.1% polysorbate-20, 0.1% palmitoyl tripeptide-1, 0.2% dipotassium glycyrrhizinate, 0.2% beta-glucan, 0.002% inulin, 0.025% ceramide-3, 0.025% hydrogenated lecithin, 0.025% sucrose stearate, and 0.025% polyglycerol-10 stearate.

3. The preparation method of the camellia seed oil essence containing hydrolyzed vegetable proteins as claimed in any one of claims 1-2, which is characterized by comprising the following steps:

(1) Soaking hydrolyzed pea protein in water until the hydrolyzed pea protein is wet, heating, preserving heat and uniformly stirring to obtain a mixture A;

(2) Homogenizing the mixture A obtained in the step (1), sequentially adding refined camellia oleosa seed oil and PEG-20 methyl glucose sesquistearate, homogenizing and emulsifying, vacuum defoaming, cooling, adding 1, 2-pentanediol and sodium hyaluronate which are mixed and dispersed in advance at normal temperature, and stirring and mixing until the mixture A and the mixture B are completely dissolved to obtain a mixture B;

(3) Mixing a proper amount of butanediol with the p-hydroxyacetophenone, heating and stirring uniformly, adding the mixture into the mixture B obtained in the step (2), stirring until the mixture is completely dissolved, and cooling to obtain a mixture C;

(4) Dissolving ceramide-3, hydrogenated lecithin, sucrose stearate and polyglycerol-10 stearate with water uniformly to obtain a mixture D;

(5) Sequentially adding nicotinamide, sodium hyaluronate crosslinked polymer, citric acid, sodium citrate, 1, 2-hexanediol, glycerol, the balance of butanediol, carbomer, polysorbate-20, palmitoyl tripeptide-1, dipotassium glycyrrhizinate, beta-glucan, inulin and the mixture D into the mixture C obtained in the step (3), stirring and mixing until the mixture C is completely dissolved, and cooling to obtain the camellia seed oil essence containing the hydrolyzed plant proteins.

4. The use of the oil tea seed oil essence containing hydrolyzed vegetable proteins as claimed in any one of claims 1-2 in the preparation of skin care products.