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Natural plant extract with sunscreen function and preparation method and application thereof

A technology of natural plants and extracts, applied in the field of natural plant extracts and preparations, can solve problems such as poor sun protection, skin allergies, unsafe UV absorption protection, etc.

Active Publication Date: 2012-07-04
GUANGZHOU GIALEN COSMETICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this type of sunscreen has the disadvantages of large dosage and poor sunscreen effect. Excessive use can easily block pores, affect the secretion of sebaceous glands and sweat glands, and cause adverse consequences such as new skin diseases.
[0008] (2) Chemical absorbent: This kind of sunscreen itself has a strong absorption capacity for ultraviolet rays, which can reduce or completely absorb ultraviolet rays and protect human skin from damage. However, most of these sunscreens are irritating and photosensitive substances. When it is too big, it is easy to cause skin allergies, and there are problems such as unsafe factors and insufficient protection against ultraviolet rays in the UVA area.

Method used

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  • Natural plant extract with sunscreen function and preparation method and application thereof
  • Natural plant extract with sunscreen function and preparation method and application thereof
  • Natural plant extract with sunscreen function and preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0059] (1) 80 parts by mass of Selaginella, 55 parts by mass of Magnolia Magnolia, 45 parts by mass of Snow Lotus and 20 parts by mass of Jasmine were respectively dried and crushed through a 10-mesh sieve to obtain coarse powder.

[0060] (2) The first step of extraction: put the pulverized magnolia and jasmine into the extraction kettle, and use CO 2 Supercritical fluid extraction, extraction temperature 45°C, extraction pressure 30Mpa, extraction time 150min, CO 2 The flow rate is 18L / h, and the volatile oil and oil extract are collected at a separation temperature of 45°C and a separation pressure of 6Mpa;

[0061] (3) second step extraction: in step (2) add Selaginella selaginellae after supercritical extraction, snow lotus flower and ethanol (concentration is 95% by volume) as entrainer after step (1) pulverizing, The quality dosage of ethanol is equivalent to 10% of the material mass in the extraction kettle; at extraction temperature 50 ℃, extraction pressure 30Mpa, e...

Embodiment 2

[0066] (1) 75 parts by mass of Selaginella, 45 parts by mass of Magnolia Magnolia, 30 parts by mass of Snow Lotus and 10 parts by mass of Jasmine were respectively dried and crushed through a 10-mesh sieve to obtain coarse powder.

[0067] (2) The first step of extraction: put the pulverized magnolia and jasmine into the extraction kettle, and use CO 2 Supercritical fluid extraction, extraction temperature 45°C, extraction pressure 30Mpa, extraction time 150min, CO 2 The flow rate is 18L / h, and the volatile oil and oil extract are collected at a separation temperature of 45°C and a separation pressure of 6Mpa;

[0068] (3) second step extraction: in step (2) add Selaginella selaginellae after supercritical extraction, snow lotus flower and ethanol (concentration is 95% by volume) as entrainer after step (1) pulverizing, The quality dosage of ethanol is equivalent to 10% of the material mass in the extraction kettle; at extraction temperature 50 ℃, extraction pressure 30Mpa, e...

Embodiment 3

[0073] (1) 50 parts by mass of Selaginella, 60 parts by mass of Magnolia Magnolia, 10 parts by mass of Snow Lotus and 25 parts by mass of Jasmine were respectively dried and crushed through a 10-mesh sieve to obtain coarse powder.

[0074] (2) The first step of extraction: put the pulverized magnolia and jasmine into the extraction kettle, and use CO 2 Supercritical fluid extraction, extraction temperature 35°C, extraction pressure 35Mpa, extraction time 180min, CO 2 The flow rate is 10L / h, and the volatile oil and oil extract are collected at a separation temperature of 35°C and a separation pressure of 3Mpa;

[0075] (3) second step extraction: in step (2) add Selaginella selaginellae after supercritical extraction, snow lotus flower and ethanol (concentration is 95% by volume) as entrainer after step (1) pulverizing, The quality dosage of ethanol is equivalent to 10% of the material mass in the extraction kettle; at extraction temperature 35 ℃, extraction pressure 20Mpa, e...

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Abstract

The invention discloses a natural plant extract with a sunscreen function and a preparation method and application of the natural plant extract. The natural plant extract is prepared from the following materials (by mass parts): 50-100 parts of Selaginella and 20-60 parts of magnolias. In addition, 30-45 parts of snow lotus and 10-20 parts of jasmine can be added to the above materials as adjuvants, the natural plant extract is obtained by extracting the above raw materials. According to the invention, the effective components of raw materials are extracted by the application of supercriticalfluid technology, and the effective component content in the extract is high. The effective components have high UV absorbing capacity and are capable of scavenging free radicals produced by UV, preventing skin ageing, reducing the generation of melanin and repairing sunburnt skin. The natural plant extract has the advantages of simple in preparation method, stable in quality and high in safety, and can be widely applied in preparation of sunscreen cosmetics.

Description

technical field [0001] The invention belongs to the field of traditional Chinese medicine and the technical field of cosmetics, and specifically relates to a natural plant extract with sunscreen function, its preparation method and application. Background technique [0002] Among the rays radiated from the sun to the surface of the earth, medium-wave ultraviolet rays (290-320nm) and long-wave ultraviolet rays (320-400nm) have a great effect on human skin. [0003] UVA band, wavelength 320-420nm, also known as long-wave dark spot effect ultraviolet rays. It has strong penetrating power and can penetrate most transparent glass and plastic. More than 98% of the long-wave ultraviolet rays contained in sunlight can penetrate the ozone layer and clouds to reach the surface of the earth. UVA can directly reach the dermis of the skin, destroying the microstructure of the skin such as collagen and elastic fiber tissue, causing wrinkles and fine lines, and making the skin loose sene...

Claims

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Application Information

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IPC IPC(8): A61K8/97A61Q17/04
Inventor 王兴林
Owner GUANGZHOU GIALEN COSMETICS
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