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Preparation method for natural compound plant extract sunscreen cream

A plant extract and sunscreen technology, applied in skin care preparations, medical preparations containing active ingredients, pharmaceutical formulas, etc., can solve problems such as allergies, and achieve the effect of easy use

Inactive Publication Date: 2017-05-24
UNIV OF JINAN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to provide a preparation method of natural composite plant extract sunscreen, which is to solve the problem of allergies caused by adding chemical sunscreens in existing sunscreens

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] (1) Plant pretreatment: select licorice: 22g, honeysuckle: 22g, Angelica dahurica: 18g, green tea: 12g, ginger: 12g, Sophora japonica: 14g, pulverize, the particle size is 160~200 mesh, and obtain the pretreated compound plant powder body;

[0025] (2) Extract preparation: Mix 0.1mol / L citric acid solution, 0.3mol / L NaOH solution, and 95% ethanol at a volume ratio of 5:4:9 to obtain the extract;

[0026] (3) Preparation of compound plant extract: Mix 10g of pretreated compound plant powder with 500mL of extract, disperse ultrasonically for 20 minutes, add 1g of cellulase, raise the temperature to 45±2°C, extract and react with constant temperature shaking for 4 hours, cool to At room temperature, filter, solid-liquid separation, liquid rotary evaporation to remove ethanol, boil for 5 minutes, cool to room temperature, put in -18°C, freeze for 6 hours, then put in a freeze-drying box, dry for 24 hours, take out, grind and sieve 400 mesh, The compound plant extract was o...

Embodiment 2

[0029] (1) Plant pretreatment: select licorice: 20g, honeysuckle: 25g, Angelica dahurica: 20g, green tea: 10g, ginger: 10g, Sophora japonica: 15g, pulverize, the particle size is 160~200 mesh, and obtain the pretreated compound plant powder body;

[0030] (2) Extract preparation: Mix 0.1mol / L citric acid solution, 0.3mol / L NaOH solution, and 95% ethanol at a volume ratio of 5:4:9 to obtain the extract;

[0031](3) Preparation of compound plant extract: mix 20g of pretreated compound plant powder with 800mL of extract, disperse by ultrasonic for 20min, add 1.2g of cellulase, raise the temperature to 45±2℃, extract and react with constant temperature shaking for 4 hours, cool to room temperature, filter, solid-liquid separation, liquid rotary evaporation to remove ethanol, boil for 5 minutes, cool to room temperature, put in -18°C, freeze for 6 hours, then put in a freeze-drying box, dry for 24 hours, take out, grind and sieve 400 mesh , to obtain a compound plant extract, whic...

Embodiment 3

[0034] (1) Plant pretreatment: select licorice: 25g, honeysuckle: 22g, Angelica dahurica: 15g, green tea: 15g, ginger: 15g, Sophora japonica: 10g, pulverize, the particle size is 160~200 mesh, and obtain the pretreated compound plant powder body;

[0035] (2) Extract preparation: Mix 0.1mol / L citric acid solution, 0.3mol / L NaOH solution, and 95% ethanol at a volume ratio of 5:4:9 to obtain the extract;

[0036] (3) Preparation of compound plant extract: Mix 50g of pretreated compound plant powder with 1500mL of extract, disperse ultrasonically for 20 minutes, add 4g of cellulase, raise the temperature to 45±2°C, extract and react with constant temperature vibration for 4 hours, cool to At room temperature, filter, solid-liquid separation, liquid rotary evaporation to remove ethanol, boil for 5 minutes, cool to room temperature, put in -18°C, freeze for 6 hours, then put in a freeze-drying box, dry for 24 hours, take out, grind and sieve 400 mesh, The compound plant extract is...

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PUM

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Abstract

The invention discloses a preparation method for natural compound plant extract sunscreen cream. The preparation method is characterized by comprising the following step: extracting an extract from natural plants, namely, liquorice root, honeysuckle flower, radix angelicae dahurioae, green tea, fresh ginger and sophora japonica by adopting an enzymatic hydrolysis extraction method to serve as a light-absorbing agent; then, adding 0.1 to 0.2 percent by mass of xanthan gum and 20 to 25 percent by mass of deionized water into a reactor, dissolving, adding 8 to 12 percent by mass of compound plant extract, 10 to 15 percent by mass of propylene glycol, 10 to 15 percent by mass of isopropyl palmitate, 4 to 8 percent by mass of hexadecanol, 6 to 10 percent by mass of silk fibroin and 28 to 35 percent by mass of EM-90 emulsifier, totaling 100 percent, uniformly mixing by stirring, adding triethanolamine to adjust the pH to about 7.0, stirring at a high speed at the temperature of 50+ / -3 DEG C to mix the materials, cooling to the room temperature, and standing for a week to obtain the natural compound plant extract sunscreen cream. The sunscreen scream emits natural fragrance, has effects of inhibiting bacteria, moistening skin, whitening and screening from the sun, is free from stimulation on human body, and is convenient to use; the sun screening effect is over 90 percent.

Description

technical field [0001] The invention relates to the technical field of cosmetics, in particular to a preparation method of a natural composite plant extract sunscreen, which has good sunscreen and skin moisturizing effects on the skin. Background technique [0002] With the increasingly serious environmental pollution, the ozone layer is gradually thinning, and the ultraviolet rays reaching the ground are increasing, which has aroused widespread concern. If there is no protective measures, the skin will be exposed to the sun for a long time, redness, swelling, burning pain, blisters, decreased elasticity, wrinkles, and aging will appear on the surface. In severe cases, the immune system can be suppressed, causing autoimmune diseases such as Lupus erythematosus, idiopathic photodermatosis such as polymorphic light eruption or solar urticaria, and even skin cancer. Although ultraviolet rays are so harmful to the skin, more and more people like outdoor activities. Therefore, ...

Claims

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Application Information

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IPC IPC(8): A61K8/9794A61K8/9789A61Q17/04A61Q19/02A61Q19/00A61Q17/00
CPCA61K8/97A61K2800/81A61K2800/84A61Q17/005A61Q17/04A61Q19/00A61Q19/02
Inventor 李慧芝许崇娟杨春霞
Owner UNIV OF JINAN