Preparation method for paper mulberry fruit extracts and application of paper mulberry fruit extracts in skin whitening

A technology of mulberry seeds and extracts, applied in the field of traditional Chinese medicine extracts, to achieve the effect of improving skin pigmentation and improving skin whitening

Active Publication Date: 2013-09-25
SHANGHAI INOHERB COSMETIC
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

And in cosmetics, the fruit of Chu Shizi is mainly used in anti-aging aspect,

Method used

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  • Preparation method for paper mulberry fruit extracts and application of paper mulberry fruit extracts in skin whitening
  • Preparation method for paper mulberry fruit extracts and application of paper mulberry fruit extracts in skin whitening
  • Preparation method for paper mulberry fruit extracts and application of paper mulberry fruit extracts in skin whitening

Examples

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Embodiment 1

[0026] Example 1: Preparation method of Fructus Chinensis extract

[0027] Take the chuen seeds to clean and dry to remove the off-white membranous calyx and impurities, and set aside.

[0028] Step 1: Weigh out a certain amount of Mucuna Seeds, extract with 15 times the amount of ethanol, and extract for 4-6 hours at 60-80°C. After standing, filtering and concentrating the extract, a crude extract of Mucchus is obtained. Ointment (extract A );

[0029] Step 2: After the extract is dispersed in water, use a macroporous adsorption resin column for separation and purification: use 3 times the resin column volume of water, 4 times the resin column volume of 20% ethanol, and 3 times the volume of the resin column. Elute with 50% ethanol and 3 times the volume of the resin column with 80% ethanol, and collect the eluate from each part (the eluate obtained by eluting with water is labeled as extract B , The eluent obtained by eluting with 20% ethanol aqueous solution is marked as extract ...

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Abstract

The invention relates to a preparation method for paper mulberry fruit extracts and application of the paper mulberry fruit extracts in skin whitening. The preparation method comprises the following steps: taking paper mulberry fruit, adding an organic solvent (ethanol) 5 to 30 times the weight of the paper mulberry fruit, carrying out reflux extraction at a temperature of 50 to 100 DEG C for 1 to 10 h and standing, filtering and concentrating an obtained liquid extract so as to obtain a crude paper mulberry fruit concrete; and dispersing the concrete with water, carrying out separation and purification with a macroporous adsorption resin column and subjecting obtained eluates to condensation and drying so as to obtain the paper mulberry fruit extracts from different parts. The extracts are used for inhibiting activity of tyrosinase and synthesis of melanin and preparation of externally applied compositions for skin whitening, and the usage amount of the extracts is 0.01 to 15% by mass. The invention has the following advantages: according to results of a variety of skin whitening efficacy tests, the paper mulberry fruit extracts have a powerful effect on inhibiting activity of tyrosinase and synthesis of melanin, can be used for preparation of in-vitro skin whitening cosmetics and externally applied pharmaceuticals and have high security and good whitening effects.

Description

technical field [0001] The invention relates to a traditional Chinese medicine extract, especially a method for preparing an extract of mulberry seeds, and the use of the extract as an active ingredient in skin whitening. Background technique [0002] Melanin is a high-molecular-weight biopigment secreted by melanocytes, which exists in the middle of the cells in the basal layer of the skin. When the skin is exposed to ultraviolet rays, a large amount of melanin is produced, and melanin can absorb ultraviolet rays to protect the skin. There are many reasons for the formation of melanin, and ultraviolet radiation is only one of the important reasons. The difference in human skin color mainly depends on the content of melanin in the skin and melanosomes in the mature stage. Inhibiting the synthesis of melanin can effectively improve the color of the skin and achieve a whitening effect. [0003] Tyrosinase is the key enzyme in the synthesis of melanin, and it is an essential ...

Claims

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Application Information

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IPC IPC(8): A61K36/60A61K8/97A61P17/00A61Q19/02A61K131/00
Inventor 雷杨符移才张彬锋王鞠骏
Owner SHANGHAI INOHERB COSMETIC
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