Roselle extract as well as preparation method thereof and application thereof in whitening skincare cosmetics

A technology of roselle and extract, applied to roselle extract and its preparation and application field in cosmetics for whitening and skin care

Active Publication Date: 2014-02-26
上海韶华生物科技发展有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

At present, there are no research reports on its whitening and skin c

Method used

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  • Roselle extract as well as preparation method thereof and application thereof in whitening skincare cosmetics

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0108] A kind of roselle extract, prepared by the following method:

[0109] (1) Add dried roselle to deionized water, and control the mass ratio of roselle to deionized water to calculate, that is, mix roselle: deionized water at 1:10 to obtain a mixed solution;

[0110] The obtained mixed solution was subjected to ultrasonic extraction for 15-30 minutes under ultrasonic conditions with a control temperature of 25°C, a power of 150W, and a frequency of 40kHz, and then filtered with a 0.45μm microporous membrane;

[0111] (2) Perform vacuum rotary evaporation on the filtrate obtained after filtering in step (1) under the condition that the vacuum degree is controlled to be 0.094-0.096 MPa to obtain the concentrated solution of the roselle extract, and control the temperature of the obtained concentrated solution of the roselle extract Freeze-dry at -55°C to obtain Roselle extract.

[0112] The above-mentioned Roselle extract obtained above is carried out to the experimental i...

Embodiment 2

[0222] A kind of roselle extract, prepared by the following method:

[0223](1) Add dried roselle to ethyl acetate solvent, control the mass ratio of roselle to ethyl acetate solvent to calculate, that is, mix roselle: ethyl acetate solvent at 1:10 to obtain a mixed solution;

[0224] The resulting mixed solution was subjected to ultrasonic extraction for 20 minutes under ultrasonic conditions with a control temperature of 25°C, a power of 150W, and a frequency of 40 kHz, and then filtered with a 0.45 μm microporous membrane;

[0225] (2), the filtrate obtained after filtering in step (1) is subjected to vacuum rotary evaporation under the condition that the vacuum degree is controlled to be 0.094~0.096MPa to obtain the concentrated solution of the roselle extract, and the temperature of the obtained concentrated solution of the roselle extract is controlled Freeze-dry at -55°C to obtain Roselle extract.

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Abstract

The invention discloses a roselle extract as well as a preparation method and application thereof. The roselle extract is prepared through the following steps: adding roselle into deionized water or an ethyl acetate solvent; performing ultrasonic extraction at 25 DEG C for 15-30 minutes; filtering the liquid with a 0.45-micron microporous filtration membrane, and collecting the filtrate; performing vacuum rotary evaporation under a condition of controlling the vacuum degree at 0.094-0.096MPa to obtain a roselle extract concentrate; freeze-drying the concentrate to obtain the roselle extract. The application of the roselle extract as a whitening skincare agent and particularly in skin cosmetics is as follows: the roselle extract is added into the skin cosmetics at a mass ratio (roselle to skin cosmetics) of (0.01-10):100; moreover, the preparation process is simple and easy to implement, and the finally obtained skin cosmetics are natural and safe and have the characteristics of whitening capacity, oxidation resistance and the like.

Description

technical field [0001] The invention relates to a roselle-containing extract, a preparation method thereof and an application thereof in cosmetics for whitening and skin care. technical background [0002] Roselle, also known as roselle, is an annual herb of the genus Hibiscus in the Malvaceae family. Its calyx is rich in elder triglycosides, protein, organic acids, various amino acids, a large amount of natural vitamins and minerals needed by the human body, such as iron, calcium, phosphorus and other nutrients. It contains 5.7 grams of reducing sugar per 100 grams of raw materials; 2.37 grams of protein; 19.8 grams of pectin; 3.3 grams of malic acid; 1.09 grams of tannin; 14.5 grams of anthocyanins; , glutamic acid, proline, glycine, alanine, lysine, arginine and other seventeen kinds of amino acids and polyphenols, furan aldehyde, hydroxymethyl furan aldehyde. [0003] Research results in the field of modern medicine show that: Roselle protocatechuic acid (PCA) can prom...

Claims

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Application Information

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IPC IPC(8): A61K8/97A61Q19/02A61Q19/10
Inventor 章苏宁马冬雪
Owner 上海韶华生物科技发展有限公司
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