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Sun-screening agent and preparation method thereof

A technology for sunscreens and skin care products, applied in the field of daily chemicals, can solve the problems of reduced melanin secretion and reduced ability, and achieve the effect of avoiding skin discomfort and preventing skin from being tanned.

Active Publication Date: 2011-05-11
SHANXI MEDICAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although skin care products added with these sunscreens have a blocking effect on medium and long-wave ultraviolet rays, which can prevent erythema and reduce the secretion of melanin, they cannot effectively block medium and short-wave ultraviolet rays that are actually more harmful to the human body.
Moreover, due to sun protection, the secretion of melanin is reduced, which will actually reduce the body's ability to normally defend against short-wave ultraviolet rays.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Crush 10Kg of soybeans that have been cleaned and removed of impurities into a paste, add 30Kg of cold water, stir well, and then let stand for 1 hour to separate into 3 layers, the uppermost layer is a fat layer, the middle is a water layer, and the bottom is defatted soybean meal. The fat layer is firstly separated and removed, and then filtered to remove water and collected to obtain defatted soybean meal.

[0024] Put the defatted soybean meal into the container, add 30Kg of slightly alkaline water with pH=7.5, fix 10 ultrasonic generators evenly around the container, adjust the ultrasonic frequency to 15kHz, and the sound intensity to 1W / cm 2 , the total ultrasonic power is 20KW, and the solid-liquid mixture in the container is ultrasonically extracted for 30 minutes.

[0025] Take out the contents in the container, remove the residue by filtration to obtain a protein solution, add 10% hydrochloric acid solution dropwise to the protein solution, adjust the pH of th...

Embodiment 2

[0028] Crush 10Kg of cleaned and removed soybeans into a paste, add 30Kg of cold water, fully stir, let stand for 1 hour, and separate into 3 layers, the uppermost layer is the fat layer, the middle is the water layer, and the bottom is the defatted soybean meal. The fat layer is firstly separated and removed, and then filtered to remove water and collected to obtain defatted soybean meal.

[0029] Put the defatted soybean meal into the container, add 3Kg of slightly alkaline water with pH=8.5, fix 6 ultrasonic generators evenly around the container, adjust the ultrasonic frequency to 15kHz, and the sound intensity to 1W / cm 2 , the total ultrasonic power is 10KW, and the solid-liquid mixture in the container is ultrasonically extracted for 30 minutes.

[0030] Take out the contents in the container, remove the residue by filtration to obtain a protein solution, add 10% hydrochloric acid solution dropwise to the protein solution, adjust the pH of the solution to 4.0, and let th...

Embodiment 3

[0033] Beeswax, spermaceti, carnauba wax, cocoa butter, camellia oil, sea turtle oil, lanolin, cholesterol, cetyl alcohol, stearyl alcohol, stearic acid and essence and water are used as raw materials, according to the general ratio and routine Cosmetic production process mixing and stirring to make moisturizer base.

[0034] Add 100g of dry nucleic acid powder and 200g of titanium powder to 10Kg of moisturizing cream base material, stir evenly, and fill to make a finished product of sunscreen and skin care products.

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PUM

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Abstract

The invention discloses a sun-screening agent and a preparation method thereof. The preparation method comprises the following steps: cleaning and crushing soybean into a pasty state, adding water and sufficiently stirring, standing and layering, separating and removing the upper fat layer, filtering the lower layer and removing water, collecting and obtaining degreasing bean pulp; adding the bean pulp into a subalkaline water with the pH value of 7.5-8.5, sufficiently extracting and separating, obtaining protein solution; adjusting the pH value of the protein solution to 4.0-4.5 to allow protein precipitation to be separate out, separating and collecting supernatant fluid; adjusting the pH value of the supernatant fluid to 1.8 to 2.2 to allow nucleic acid precipitation to be separated out; collecting the nucleic acid precipitation, adding water to dissolve, adjusting the pH value to 4.0-4.5, separating out and filtering and removing water-soluble protein therein; adding 95 percent of alcohol solution into the filtrate, precipitating with alcohol and filtering and removing alcohol-soluble protein. The sun-screening agent is uniformly mixed with a skin-care product base according to a mass ratio of 1 to 1000 so as to obtain a brand-new biological sun-screening skin-care product.

Description

technical field [0001] The invention belongs to the technical field of daily chemicals and relates to a sunscreen. The sunscreen agent of the present invention is nucleic acid dry powder extracted from soybean. The invention also relates to the preparation method and application of the sunscreen. Background technique [0002] According to statistics from the World Health Organization, there are 2 to 3 million new skin cancer patients, 2 million cataract patients and more than 130,000 malignant melanoma patients worldwide every year. Exposure to the sun is an important cause of these diseases. Sun exposure may also reduce people's immune function, which can lead to other diseases. The report of the World Health Organization also pointed out that the prevention of diseases caused by ultraviolet rays should be emphasized, and reminded people to beware of skin cancer and cataracts caused by sun ultraviolet exposure. [0003] Ultraviolet wavelength (400-100nm) is the shortest...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61K8/60A61K8/97A61K8/29A61Q17/04
Inventor 于保锋解军赵虹胡晓年向前张悦红
Owner SHANXI MEDICAL UNIV