Stachyurus extract and application thereof

The technology of the flower and the extract is applied to the extract of the flower and its application in cosmetics to achieve the effect of inhibiting the activity of tyrosinase, good effect and inhibiting the production of melanin

Active Publication Date: 2017-10-27
JALA GROUP CORPORATION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the related Jingjiehua and its chemical components are used to improve skin function, delay skin aging, achieve anti-aging and whitening effects by scavenging free radicals and inhibiting tyrosinase activity, and are applied to skin external preparations such as skin care products or cosmetics. Research not yet reported

Method used

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  • Stachyurus extract and application thereof
  • Stachyurus extract and application thereof
  • Stachyurus extract and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] Example 1 Alcoholic extract of Jingjiehua

[0037] Dried the stem pith of Himalayan japonica until the water content is ≤5%, take 100g, grind it into a coarse powder with a particle size of 25-800 mesh, put it in 4L of 70% (v / v) ethanol aqueous solution, and extract it with 500W ultrasonic wave at room temperature for 1h;

[0038] The solid was collected by filtration, and the above extraction step was repeated once.

[0039] The filtrates were combined and evaporated to dryness at 40-60° C. to obtain about 2 g of ethanol extract of Himalayan japonica.

Embodiment 2

[0040] Example 2 The water extract of Jingjiehua

[0041] Dry the stem pith of Himalaya japonica until the water content is ≤5%, take 100g, grind it into a coarse powder with a particle size of 25-800, put it in 6L of deionized water, heat it in a water bath at 96°C for 1 hour, and separate the solid and filtrate by suction filtration;

[0042] Take the solid and repeat the above extraction step once.

[0043] The filtrates were combined, concentrated and freeze-dried to obtain about 2 g of the water extract of Himalayan Jasmine Flower.

Embodiment 3

[0044] Example 3 DPPH method scavenging free radical activity test

[0045] 1,1-Diphenyl-2-trinitrophenylhydrazine (1,1-Diphenyl-2-picrylhydrazyl, DPPH) is a stable nitrogen-centered organic radical, and its ethanol solution is dark purple at about 517nm There is strong absorption; when there is a free radical scavenger, the absorption of DPPH is weakened and gradually disappears due to its single-electron pairing. The degree of fading of DPPH ethanol solution has a quantitative relationship with the number of electrons it accepts. Therefore, a spectrophotometer can be used for rapid quantitative analysis to detect free radical scavenging and evaluate the ability of antioxidants to scavenge free radicals, antioxidant capacity and anti-aging capacity.

[0046] Preparation of DPPH ethanol solution: Accurately weigh 6mg of DPPH, dissolve it with 95% ethanol and set the volume in a 50mL volumetric flask, and dissolve with the aid of ultrasound. When used, dilute it four times wit...

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PUM

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Abstract

The invention relates to a stachyurus extract and an application thereof in cosmetics. The stachyurus extract is stachyurus water extract, stachyurus ethanolic extract or any mixture of the two. A preparation method comprises the following steps: placing stachyurus stems into an extraction solvent for ultrasonically extracting or digesting while preserving heat, filtering, concentrating and drying, thereby acquiring the stachyurus extract. The stachyurus extract provided by the invention has the functions of eliminating free radicals and inhibiting tyrosinase activity, has the anti-ageing and whitening functions and can be used for preparing the anti-ageing and whitening cosmetics.

Description

technical field [0001] The invention relates to the field of plant extracts and cosmetics, in particular to the extract of Jingjiehua and its application in cosmetics. technical background [0002] Recent studies have proved that hyperpigmentation is caused by the activation of melanin-producing enzymes in melanocytes in the epidermis by ultraviolet rays to produce pigments. The melanocytes located in the basal layer of the human epidermis contact and communicate with the surrounding keratinocytes to form the "epidermal melanin unit", in which melanin is a nitrogen-containing compound that is synthesized in the melanosome. Generally speaking, the amount and quality of melanin in skin melanin is an important factor in determining skin color. During the production of melanin, tyrosinase converts tyrosine into dopa and dopaquinone, which are polymerized into macromolecular melanin through non-enzymatic oxidation. Therefore, by inhibiting the activity of tyrosinase, melanin pr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61K8/9789A61Q19/02A61Q19/08
CPCA61Q19/02A61Q19/08A61K8/97A61K2800/782A61K2800/82
Inventor 章漳史晓婷蒋耀权宋肖洁河野善行
Owner JALA GROUP CORPORATION
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