Essence with whitening, beauty-enhancing and radiation-resistant functions and preparation method thereof

Abstract

The present invention relates to the technical field of daily chemicals, specifically to an essence with whitening, beauty-enhancing and radiation-resistant functions and a preparation method thereof. Ferric citrate is added to the essence prepared by the present invention, and ferric citrate can enhance the antioxidant capacity of the skin, reduce the damage of oxygen free radicals to the skin, maintain the elasticity and luster of the skin, and achieve the effect of beauty. Soybean polysaccharides are natural and environmentally friendly, can remove free radicals, and improve cell vitality and cell radiation tolerance. Taxifolin has good radiation resistance and antioxidant properties. The essence with whitening, beauty-enhancing and radiation-resistant functions provided by the present invention adopts a variety of natural active ingredients, has good biocompatibility and safety, can effectively improve skin quality, and protect the skin from radiation and oxidation damage.

Description

Technical Field

[0001] The invention relates to the technical field of daily chemicals, in particular to an essence with whitening, beauty-enhancing and radiation-resistance functions and a preparation method thereof. Background Art

[0002] As people's living standards improve, the demand for cosmetics is also increasing. While using cosmetics, people are also demanding more and more cosmetic effects, such as whitening and skin care. At the same time, as people are exposed to electronic products, ultraviolet rays and other radiation sources for more time, the damage caused by radiation to the skin is also increasing. Therefore, how to develop a cosmetic that has whitening, skin care and anti-radiation functions at the same time is an urgent problem to be solved in the current cosmetics industry.

[0003] In order to solve the above problems and improve the whitening effect of skin care products while enhancing their anti-radiation function, the present invention provides an essence with whitening, beauty-enhancing and anti-radiation functions and a preparation method thereof. Summary of the invention

[0004] The purpose of the present invention is to provide an essence with whitening, beauty and radiation resistance functions and a preparation method thereof, so as to solve the problems raised in the above background technology.

[0005] In order to solve the above technical problems, the present invention provides the following technical solutions:

[0006] A method for preparing an essence with whitening, beauty-enhancing and radiation-resistant functions, comprising the following steps:

[0007] Step 1: Mix sodium alginate and pure water, stir with ultrasound at 40-45°C for 2-3h, then cool to 4-6°C and keep warm for 22-24h, add taxifolin, and keep warm at 40-45°C for 4-5h to obtain taxifolin solution;

[0008] Step 2: Take the thickener and pure water, mix them evenly, add niacinamide, soybean polysaccharide complex, moisturizer, preservative and Taxol solution, stir for 5-10 minutes, add pH adjuster, stir for 2-3 minutes, add emulsifier and continue stirring for 5-8 minutes to obtain the essence with whitening, beauty and anti-radiation functions.

[0009] More optimally, the preparation method of the soybean polysaccharide complex is: take deionized water and ferric citrate at 65-70°C, stir evenly to obtain a ferric citrate solution; take soybean polysaccharide and deionized water, stir evenly, add the ferric citrate solution, continue stirring for 1-2 hours, filter, wash, and dry to obtain a soybean polysaccharide complex.

[0010] More optimally, the essence includes the following ingredients, by weight: 7-10 parts of niacinamide, 2-4 parts of soybean polysaccharide complex, 1-3 parts of taxifolin solution, 8-15 parts of moisturizer, 0.5-1 part of emulsifier, 0.5-1 part of thickener, 0.4-0.8 part of preservative, 2-3 parts of pH adjuster and 70-75 parts of pure water.

[0011] More optimally, the preparation method of soybean polysaccharide is: take soybean dregs, add petroleum ether, heat to 50-60°C, react for 2-3h, filter and dry; add sulfuric acid, boil for 50-70min, wash to neutral, and dry; add potassium hydroxide solution, heat to 90-100°C, react for 20-30min, wash to neutral, and dry to obtain soybean crude fiber; take soybean crude fiber, add sodium acetate buffer solution, stir evenly, add cellulase, degrade at 47-52°C for 50-70min, react at 90-100°C for 10-15min, filter and dry to obtain soybean polysaccharide.

[0012] More optimally, in step 2, a pH adjuster is added to adjust the pH value to 4.5-5.

[0013] More optimally, the thickener is any one or more of xanthan gum and hydroxyethyl cellulose; the preservative is any one or more of pentanediol and hexylene glycol.

[0014] More optimally, the moisturizing agent is any one or more of betaine, sodium polyglutamate and sodium hyaluronate.

[0015] More optimally, the emulsifier is any one or more of polysorbate-20 and polysorbate-80.

[0016] More optimally, the pH regulator is any one or more of lactic acid and arginine.

[0017] Compared with the prior art, the beneficial effects achieved by the present invention are:

[0018] (1) The present invention selects any one or more of lactic acid and arginine as pH regulators to adjust the pH value of the essence to 4.5-5. Since the pH value of human facial skin is between 4.5-5.5, when the pH value of the essence is 4.5-6, the pH value of the essence is close to the pH value of the skin, which can maintain the natural acid-base balance of the skin.

[0019] (2) Ferric citrate can enhance the antioxidant capacity of the skin. Ferric citrate can also reduce the damage of oxygen free radicals to the skin, maintain the elasticity and luster of the skin, and achieve the effect of beauty care. However, the dispersibility of ferric citrate in the solution is unstable. Ferric citrate is relatively stable in an environment with a pH value of less than 3. When the pH value of the essence is greater than 5, ferric citrate is easily decomposed and precipitates. In order to improve the stability of ferric citrate, the present invention combines it with soybean polysaccharides.

[0020] Soybean polysaccharide is made from soybean dregs, is natural and environmentally friendly, has good dispersibility in solution, and can remove free radicals, improve cell viability and cell radiation tolerance. The present invention utilizes the good chelating ability of soybean polysaccharide for iron ions, and composites ferric citrate on soybean polysaccharide, so that ferric citrate has good dispersibility, and further improves the radiation resistance, antioxidant and certain whitening properties of the soybean polysaccharide complex.

[0021] Sodium alginate is a natural polysaccharide polymer with good stability and biocompatibility. Taxifolin has good anti-radiation and antioxidant properties. Mixing Taxifolin and sodium alginate to prepare Taxifolin solution can improve the stability of Taxifolin solution in the essence. Moreover, Taxifolin has five phenolic hydroxyl groups, which can chelate the metal ions on the soybean polysaccharide complex, making the two substances cross-linked and enhancing the whitening and anti-radiation properties of the essence.

[0022] (3) The essence with whitening, beauty-enhancing and radiation-resistant functions provided by the present invention adopts a variety of natural active ingredients, has good biocompatibility and safety, can effectively improve skin quality, and protect the skin from radiation and oxidation damage. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present invention are described clearly and completely below. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0024] Example 1

[0025] Step 1: Preparation of soybean polysaccharides:

[0026] Take 10g of soybean dregs, add 300mL of petroleum ether, heat to 55°C, react for 2.5h, filter and dry; add 150mL of 1.25% sulfuric acid, boil for 60min, wash until neutral, and dry; add 200mL of 1.25% potassium hydroxide solution, heat to 95°C, react for 25min, wash until neutral, and dry to obtain soybean crude fiber.

[0027] Take 5g of soybean crude fiber, add 100mL of sodium acetate buffer solution with a concentration of 0.1mol / L and a pH value of 5.0, stir evenly, add cellulase Accellerase1000 at 40U / g, degrade at 50℃ for 60min, react at 95℃ for 12min, filter and dry to obtain soybean polysaccharide.

[0028] Okara: Commercially available, provided by Lingshou County Xinde Agricultural Products Co., Ltd.

[0029] Step 2: Preparation of soybean polysaccharide complex:

[0030] Take 5 mL of 67°C deionized water and 1 g of ferric citrate, stir evenly to obtain a ferric citrate solution;

[0031] Take 2 g of soybean polysaccharide and 20 mL of deionized water, stir evenly, add ferric citrate solution, continue stirring for 1.5 h, filter, wash and dry to obtain a soybean polysaccharide complex.

[0032] Step 3: Preparation of Taxifolin Solution:

[0033] 1 g of sodium alginate and 100 mL of pure water were mixed, and ultrasonically stirred at 42° C. for 2.5 h, then cooled to 5° C. and kept warm for 23 h, 2 g of taxifolin was added, and kept warm at 42° C. for 4.5 h to obtain a taxifolin solution.

[0034] Taxifolin: CAS number 480-18-2, provided by Sichuan Hongen Plant Technology Co., Ltd.

[0035] Step 4:

[0036] Take thickener xanthocollagen and pure water, mix evenly, add niacinamide, soybean polysaccharide complex, moisturizer sodium hyaluronate, preservative pentylene glycol, and Taxol solution, stir for 7 minutes, add pH adjuster lactic acid, stir for 2.5 minutes, add emulsifier polysorbate-20 and continue stirring for 6 minutes to obtain an essence with whitening, beauty and anti-radiation functions.

[0037] The essence includes the following ingredients, by weight: 8 parts of niacinamide, 3 parts of soybean polysaccharide complex, 2 parts of Taxusin solution, 10 parts of sodium hyaluronate as a moisturizer, 0.6 parts of polysorbate-20 as an emulsifier, 0.7 parts of xanthan gum as a thickener, 0.5 parts of pentylene glycol as a preservative, 2 parts of lactic acid as a pH adjuster, and 72 parts of pure water.

[0038] The mass ratio of soybean polysaccharide complex and taxol solution was controlled to be 1.5:1.

[0039] Example 2

[0040] Step 1: Preparation of soybean polysaccharides:

[0041] Take 10g of soybean dregs, add 300mL of petroleum ether, heat to 50℃, react for 2h, filter and dry; add 150mL of 1.25% sulfuric acid, boil for 50min, wash until neutral, and dry; add 200mL of 1.25% potassium hydroxide solution, heat to 90℃, react for 20min, wash until neutral, and dry to obtain soybean crude fiber.

[0042] Take 5g of soybean crude fiber, add 100mL of sodium acetate buffer solution with a concentration of 0.1mol / L and a pH value of 5.0, stir evenly, add cellulase Accellerase1000 at 40U / g, degrade at 47°C for 50min, react at 90°C for 10min, filter and dry to obtain soybean polysaccharide.

[0043] Okara: Commercially available, provided by Lingshou County Xinde Agricultural Products Co., Ltd.

[0044] Step 2: Preparation of soybean polysaccharide complex:

[0045] Take 5 mL of 65°C deionized water and 1 g of ferric citrate, stir evenly to obtain a ferric citrate solution;

[0046] Take 2 g of soybean polysaccharide and 20 mL of deionized water, stir evenly, add ferric citrate solution, continue stirring for 1 hour, filter, wash and dry to obtain a soybean polysaccharide complex.

[0047] Step 3: Preparation of Taxifolin Solution:

[0048] Mix 1 g of sodium alginate and 100 mL of pure water, stir with ultrasound at 40° C. for 2 h, then cool to 4° C. and keep warm for 22-24 h, add 2 g of taxifolin, and keep warm at 40° C. for 4 h to obtain a taxifolin solution.

[0049] Taxifolin: CAS number 480-18-2, provided by Sichuan Hongen Plant Technology Co., Ltd.

[0050] Step 4:

[0051] Take thickener xanthocollagen and pure water, mix evenly, add niacinamide, soybean polysaccharide complex, moisturizer sodium hyaluronate, preservative pentylene glycol, and Taxol solution, stir for 5 minutes, add pH adjuster lactic acid, stir for 2 minutes, add emulsifier polysorbate-20 and continue stirring for 5 minutes to obtain an essence with whitening, beauty and anti-radiation functions.

[0052] The essence includes the following ingredients, by weight: 7 parts of niacinamide, 2 parts of soybean polysaccharide complex, 1 part of Taxusin solution, 8 parts of sodium hyaluronate as a moisturizer, 0.5 parts of polysorbate-20 as an emulsifier, 0.5 parts of xanthan gum as a thickener, 0.4 parts of pentylene glycol as a preservative, 2 parts of lactic acid as a pH adjuster, and 70 parts of pure water.

[0053] The mass ratio of soybean polysaccharide complex and Taxifolin solution was controlled to be 2:1.

[0054] Example 3

[0055] Step 1: Preparation of soybean polysaccharides:

[0056] Take 10g of soybean dregs, add 300mL of petroleum ether, heat to 60℃, react for 2-3h, filter and dry; add 150mL of 1.25% sulfuric acid, boil for 70min, wash until neutral, and dry; add 200mL of 1.25% potassium hydroxide solution, heat to 100℃, react for 30min, wash until neutral, and dry to obtain soybean crude fiber.

[0057] Take 5g of soybean crude fiber, add 100mL of sodium acetate buffer solution with a concentration of 0.1mol / L and a pH value of 5.0, stir evenly, add cellulase Accellerase1000 at 40U / g, degrade at 52℃ for 70min, react at 100℃ for 15min, filter and dry to obtain soybean polysaccharide.

[0058] Okara: Commercially available, provided by Lingshou County Xinde Agricultural Products Co., Ltd.

[0059] Step 2: Preparation of soybean polysaccharide complex:

[0060] Take 5 mL of 70°C deionized water and 1 g of ferric citrate, stir evenly to obtain a ferric citrate solution;

[0061] Take 2 g of soybean polysaccharide and 20 mL of deionized water, stir evenly, add ferric citrate solution, continue stirring for 2 h, filter, wash and dry to obtain a soybean polysaccharide complex.

[0062] Step 3: Preparation of Taxifolin Solution:

[0063] 1 g of sodium alginate and 100 mL of pure water were mixed, and ultrasonically stirred at 45° C. for 3 h, then cooled to 6° C. and kept warm for 24 h, 2 g of taxifolin was added, and kept warm at 45° C. for 5 h to obtain a taxifolin solution.

[0064] Taxifolin: CAS number 480-18-2, provided by Sichuan Hongen Plant Technology Co., Ltd.

[0065] Step 4:

[0066] Take thickener xanthocollagen and pure water, mix evenly, add niacinamide, soybean polysaccharide complex, moisturizer sodium hyaluronate, preservative pentylene glycol, and Taxol solution, stir for 10 minutes, add pH adjuster lactic acid, stir for 3 minutes, add emulsifier polysorbate-20 and continue stirring for 8 minutes to obtain an essence with whitening, beauty and anti-radiation functions.

[0067] The essence includes the following ingredients, by weight: 10 parts of niacinamide, 4 parts of soybean polysaccharide complex, 2 parts of Taxusin solution, 15 parts of sodium hyaluronate as a moisturizer, 1 part of polysorbate-20 as an emulsifier, 1 part of xanthan gum as a thickener, 0.8 parts of pentylene glycol as a preservative, 3 parts of lactic acid as a pH adjuster, and 75 parts of pure water.

[0068] The mass ratio of soybean polysaccharide complex and Taxifolin solution was controlled to be 2:1.

[0069] Example 4: Ferric citrate is not compounded with soybean polysaccharide, and the rest is the same as Example 1.

[0070] Step 1: Preparation of soybean polysaccharides:

[0071] Take 10g of soybean dregs, add 300mL of petroleum ether, heat to 55°C, react for 2.5h, filter and dry; add 150mL of 1.25% sulfuric acid, boil for 60min, wash until neutral, and dry; add 200mL of 1.25% potassium hydroxide solution, heat to 95°C, react for 25min, wash until neutral, and dry to obtain soybean crude fiber.

[0072] Take 5g of soybean crude fiber, add 100mL of sodium acetate buffer solution with a concentration of 0.1mol / L and a pH value of 5.0, stir evenly, add cellulase Accellerase1000 at 40U / g, degrade at 50℃ for 60min, react at 95℃ for 12min, filter and dry to obtain soybean polysaccharide.

[0073] Okara: Commercially available, provided by Lingshou County Xinde Agricultural Products Co., Ltd.

[0074] Step 2: Preparation of ferric citrate solution:

[0075] Take 5 mL of 67° C. deionized water and 1 g of ferric citrate, stir evenly to obtain a ferric citrate solution.

[0076] Step 3: Preparation of Taxifolin Solution:

[0077] 1 g of sodium alginate and 100 mL of pure water were mixed, and ultrasonically stirred at 42° C. for 2.5 h, then cooled to 5° C. and kept warm for 23 h, 2 g of taxifolin was added, and kept warm at 42° C. for 4.5 h to obtain a taxifolin solution.

[0078] Taxifolin: CAS number 480-18-2, provided by Sichuan Hongen Plant Technology Co., Ltd.

[0079] Step 4:

[0080] Take thickener xanthocollagen and pure water, mix evenly, add niacinamide, soy polysaccharide, ferric citrate solution, moisturizer sodium hyaluronate, preservative pentylene glycol, and Taxol solution, stir for 7 minutes, add pH adjuster lactic acid, stir for 2.5 minutes, add emulsifier polysorbate-20 and continue stirring for 6 minutes to obtain an essence with whitening, beauty and anti-radiation functions.

[0081] The essence includes the following ingredients, by weight: 8 parts of niacinamide, 2 parts of soy polysaccharides, 1.5 parts of ferric citrate solution, 2 parts of Taxol solution, 10 parts of sodium hyaluronate as a moisturizer, 0.6 parts of polysorbate-20 as an emulsifier, 0.7 parts of xanthan gum as a thickener, 0.5 parts of pentylene glycol as a preservative, 2 parts of lactic acid as a pH adjuster, and 72 parts of pure water.

[0082] The mass ratio of soybean polysaccharide complex and taxol solution was controlled to be 1.5:1.

[0083] Example 5: Sodium alginate is not added, and the rest is the same as Example 1.

[0084] Step 1: Preparation of soybean polysaccharides:

[0085] Take 10g of soybean dregs, add 300mL of petroleum ether, heat to 55°C, react for 2.5h, filter and dry; add 150mL of 1.25% sulfuric acid, boil for 60min, wash until neutral, and dry; add 200mL of 1.25% potassium hydroxide solution, heat to 95°C, react for 25min, wash until neutral, and dry to obtain soybean crude fiber.

[0086] Take 5g of soybean crude fiber, add 100mL of sodium acetate buffer solution with a concentration of 0.1mol / L and a pH value of 5.0, stir evenly, add cellulase Accellerase1000 at 40U / g, degrade at 50℃ for 60min, react at 95℃ for 12min, filter and dry to obtain soybean polysaccharide.

[0087] Okara: Commercially available, provided by Lingshou County Xinde Agricultural Products Co., Ltd.

[0088] Step 2: Preparation of soybean polysaccharide complex:

[0089] Take 5 mL of 67°C deionized water and 1 g of ferric citrate, stir evenly to obtain a ferric citrate solution;

[0090] Take 2 g of soybean polysaccharide and 20 mL of deionized water, stir evenly, add ferric citrate solution, continue stirring for 1.5 h, filter, wash and dry to obtain a soybean polysaccharide complex.

[0091] Step 3: Preparation of Taxifolin Solution:

[0092] Mix 2 g of Taxifolin and 100 mL of pure water to obtain a Taxifolin solution.

[0093] Taxifolin: CAS number 480-18-2, provided by Sichuan Hongen Plant Technology Co., Ltd.

[0094] Step 4:

[0095] Take thickener xanthocollagen and pure water, mix evenly, add niacinamide, soybean polysaccharide complex, moisturizer sodium hyaluronate, preservative pentylene glycol, and Taxol solution, stir for 7 minutes, add pH adjuster lactic acid, stir for 2.5 minutes, add emulsifier polysorbate-20 and continue stirring for 6 minutes to obtain an essence with whitening, beauty and anti-radiation functions.

[0096] The essence includes the following ingredients, by weight: 8 parts of niacinamide, 3 parts of soybean polysaccharide complex, 2 parts of Taxusin solution, 10 parts of sodium hyaluronate as a moisturizer, 0.6 parts of polysorbate-20 as an emulsifier, 0.7 parts of xanthan gum as a thickener, 0.5 parts of pentylene glycol as a preservative, 2 parts of lactic acid as a pH adjuster, and 72 parts of pure water.

[0097] The mass ratio of soybean polysaccharide complex and taxol solution was controlled to be 1.5:1.

[0098] Example 6: The mass ratio of the soybean polysaccharide complex to the taxifolin solution was controlled to be 1:1, and the rest was the same as in Example 1.

[0099] Step 1: Preparation of soybean polysaccharides:

[0100] Take 10g of soybean dregs, add 300mL of petroleum ether, heat to 55°C, react for 2.5h, filter and dry; add 150mL of 1.25% sulfuric acid, boil for 60min, wash until neutral, and dry; add 200mL of 1.25% potassium hydroxide solution, heat to 95°C, react for 25min, wash until neutral, and dry to obtain soybean crude fiber.

[0101] Take 5g of soybean crude fiber, add 100mL of sodium acetate buffer solution with a concentration of 0.1mol / L and a pH value of 5.0, stir evenly, add cellulase Accellerase1000 at 40U / g, degrade at 50℃ for 60min, react at 95℃ for 12min, filter and dry to obtain soybean polysaccharide.

[0102] Okara: Commercially available, provided by Lingshou County Xinde Agricultural Products Co., Ltd.

[0103] Step 2: Preparation of soybean polysaccharide complex:

[0104] Take 5 mL of 67°C deionized water and 1 g of ferric citrate, stir evenly to obtain a ferric citrate solution;

[0105] Take 2 g of soybean polysaccharide and 20 mL of deionized water, stir evenly, add ferric citrate solution, continue stirring for 1.5 h, filter, wash and dry to obtain a soybean polysaccharide complex.

[0106] Step 3: Preparation of Taxifolin Solution:

[0107] 1 g of sodium alginate and 100 mL of pure water were mixed, and ultrasonically stirred at 42° C. for 2.5 h, then cooled to 5° C. and kept warm for 23 h, 2 g of taxifolin was added, and kept warm at 42° C. for 4.5 h to obtain a taxifolin solution.

[0108] Taxifolin: CAS number 480-18-2, provided by Sichuan Hongen Plant Technology Co., Ltd.

[0109] Step 4:

[0110] Take thickener xanthocollagen and pure water, mix evenly, add niacinamide, soybean polysaccharide complex, moisturizer sodium hyaluronate, preservative pentylene glycol, and Taxol solution, stir for 7 minutes, add pH adjuster lactic acid, stir for 2.5 minutes, add emulsifier polysorbate-20 and continue stirring for 6 minutes to obtain an essence with whitening, beauty and anti-radiation functions.

[0111] The essence includes the following ingredients, by weight: 8 parts of niacinamide, 2.5 parts of soybean polysaccharide complex, 2.5 parts of Taxusin solution, 10 parts of sodium hyaluronate as a moisturizer, 0.6 parts of polysorbate-20 as an emulsifier, 0.7 parts of xanthan gum as a thickener, 0.5 parts of pentylene glycol as a preservative, 2 parts of lactic acid as a pH adjuster, and 72 parts of pure water.

[0112] The mass ratio of the soybean polysaccharide complex and the taxifolin solution was controlled to be 1:1.

[0113] The sources of the reagents used in Examples 1 to 6 of the present invention are as follows:

[0114] Xanthocollagen: CAS No. 11138-66-2, from Henan Rongshen Chemical Co., Ltd.

[0115] Nicotinamide: Catalog number: N814696, provided by MacLean Reagents.

[0116] Pentylene glycol: Product number: P815985, provided by MacLean Reagents.

[0117] Lactic acid: Product number: L812421, provided by MacLean Reagent.

[0118] Sodium hyaluronate: molecular weight is 2 million, provided by Shenzhen Haisheng Biotechnology Co., Ltd.

[0119] Polysorbate 20: Tween 20, provided by Shenzhen Jintenglong Industrial Co., Ltd.

[0120] experiment:

[0121] The whitening, beauty and anti-radiation essences prepared in Examples 1 to 6 were tested for performance.

[0122] Prepare a tyrosinase solution with a mass concentration of 0.07 mg / mL, a 1.0 mg / mL L-tyrosine solution, and a phosphate buffer solution with a pH value of 6.83. Take 2 mL of phosphate buffer solution and add 0.5 mL of L-tyrosine solution and 0.5 mL of tyrosinase solution to obtain solution ①; take 2.5 mL of phosphate buffer solution and add 0.5 mL of L-tyrosine solution to obtain solution ②; take 1.5 mL of phosphate buffer solution and add 0.5 mL of L-tyrosine solution, 0.5 mL of tyrosinase solution, and 0.5 mL of the essence sample to be tested to obtain solution ③; take 2 mL of phosphate buffer solution and add 0.5 mL of tyrosinase solution and 0.5 mL of the essence sample to be tested to obtain solution ④; place solutions ① to ④ in a 37°C water bath for 30 minutes and immediately place them at 475 nm to measure the absorbance. The absorbance values ​​obtained are recorded as A, B, C, and D, respectively. The tyrosinase inhibition rate formula is: I = {[(AB)-(CD)] / (AB)}×100%.

[0123] The free radical scavenging ability was detected by 1,1-diphenyl-2-trinitrophenylhydrazine (DPPH) spectrophotometry, and the data obtained are shown in the following table:

[0124]

[0125]

[0126] Conclusion: In Example 4, ferric citrate is not compounded with soybean polysaccharides, the dispersibility of ferric citrate in the solution is unstable, the scavenging rate of DPPH free radicals decreases, and the antioxidant performance of the essence decreases. In Example 5, sodium alginate is not added, the stability of the taxifolin solution in the essence is poor, and the antioxidant performance of the essence decreases. In Example 6, the mass ratio of the soybean polysaccharide complex and the taxifolin solution is controlled to be 1:1, the addition amount of the soybean polysaccharide complex is reduced, the chelation effect is reduced, the tyrosinase inhibition rate is reduced, the whitening effect is worse, and the performance of the essence is reduced.

[0127] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A method for preparing an essence with whitening, beauty and radiation resistance functions, characterized in that: The following steps are involved: Step 1: Mix sodium alginate and pure water, stir with ultrasound at 40-45°C for 2-3h, then cool to 4-6°C and keep warm for 22-24h, add taxifolin, and keep warm at 40-45°C for 4-5h to obtain taxifolin solution; Step 2: Take the thickener and pure water, mix them evenly, add niacinamide, soybean polysaccharide complex, moisturizer, preservative and Taxol solution, stir for 5-10 minutes, add pH adjuster, stir for 2-3 minutes, add emulsifier and continue stirring for 5-8 minutes to obtain the essence with whitening, beauty and anti-radiation functions; The preparation method of the soybean polysaccharide complex is as follows: taking deionized water at 65-70° C. and ferric citrate, stirring evenly to obtain a ferric citrate solution; taking soybean polysaccharide and deionized water, stirring evenly, adding the ferric citrate solution, continuing to stir for 1-2 hours, filtering, washing, and drying to obtain the soybean polysaccharide complex; The preparation method of soybean polysaccharide is as follows: taking soybean dregs, adding petroleum ether, heating to 50-60°C, reacting for 2-3h, filtering, and drying; adding sulfuric acid, boiling for 50-70min, washing to neutrality, and drying; Add potassium hydroxide solution, heat to 90-100°C, react for 20-30 minutes, wash until neutral, and dry to obtain soybean crude fiber; take soybean crude fiber, add sodium acetate buffer solution, stir evenly, add cellulase, degrade at 47-52°C for 50-70 minutes, react at 90-100°C for 10-15 minutes, filter, and dry to obtain soybean polysaccharide; The essence comprises the following ingredients, by weight: 7-10 parts of niacinamide, 2-4 parts of soybean polysaccharide complex, 1-3 parts of taxifolin solution, 8-15 parts of moisturizer, 0.5-1 part of emulsifier, 0.5-1 part of thickener, 0.4-0.8 part of preservative, 2-3 parts of pH adjuster and 70-75 parts of pure water.

2. The method for preparing the essence with whitening, beauty-enhancing and radiation-resistant functions according to claim 1, characterized in that: In step 2, a pH adjuster is added to adjust the pH value to 4.5-5.

3. The method for preparing the essence with whitening, beauty-enhancing and radiation-resistant functions according to claim 1, characterized in that: The thickener is any one or more of xanthan gum and hydroxyethyl cellulose; the preservative is any one or more of pentanediol and hexanediol.

4. The method for preparing the essence with whitening, beauty-enhancing and radiation-resistant functions according to claim 1, characterized in that: The emulsifier is any one or more of polysorbate-20 and polysorbate-80.

5. The method for preparing the essence with whitening, beauty-enhancing and radiation-resistant functions according to claim 1, characterized in that: The pH regulator is any one or more of lactic acid and arginine.

6. The method for preparing the essence with whitening, beauty-enhancing and radiation-resistant functions according to claim 1, characterized in that: The moisturizing agent is any one or more of betaine, sodium polyglutamate and sodium hyaluronate.

7. An essence with whitening, beauty-nourishing and anti-radiation functions prepared according to the preparation method of an essence with whitening, beauty-nourishing and anti-radiation functions according to any one of claims 1 to 6.

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