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Black rice extract and its preparation method and application in cosmetics

An extract and cosmetic technology, applied in the field of black rice extract and its preparation, can solve the problems of clogged pores, enlarged pores, blackheads, etc., achieve good anti-aging ability, maintain skin elasticity, and promote secretion

Active Publication Date: 2020-08-28
SHANGHAI INOHERB COSMETIC +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The invention patent with the application number of 201410569678.1 discloses a facial mask for removing freckles and acne. Black rice is added to the facial mask, which will lead to the following adverse consequences: the black rice particles are larger and have more impurities, so it is directly applied to the facial mask Pores will be clogged and a series of other problems will follow, such as folliculitis, enlarged pores, blackheads, etc.

Method used

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  • Black rice extract and its preparation method and application in cosmetics
  • Black rice extract and its preparation method and application in cosmetics
  • Black rice extract and its preparation method and application in cosmetics

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046]Take 10kg of dried black rice, wash it twice with deionized water, dry it with hot air, crush it, and pass it through an 80-mesh sieve. Add the sieved black rice to a rectifying distillation tank with a volume of 150 L and a ring diameter of 5 mm. In the column, the theoretical plate number of the rectification column is 20. The feed inlet is set on the fifth floor, add 100L deionized water from the feed inlet to the tower kettle, soak for 2 hours, adjust the pressure of the rectification tower to 0.8MPa, heat the tower kettle to boil, and keep boiling for 2 hours, set the top reflux ratio 5, the flow rate of the feed port is 3L / min, the extraction solution is continuously extracted from the tower kettle, and the deionized water extracted from the top of the tower is returned to the solvent tank for recycling. The extract was concentrated at 5kPa and 30°C to 20% of the original volume to obtain a concentrate.

[0047] Adjust the pH value of the concentrated solution to ...

Embodiment 2

[0050] Take 10kg of dry black rice, wash it twice with deionized water, dry it with hot air, crush it, and pass it through a 60-mesh sieve. Add the sieved black rice to a rectification tank with a volume of 250 L and a ring diameter of 5 mm. In the column, the theoretical plate number of the rectification column is 15. The feed inlet is located on the seventh floor, add 200L 70% methanol solution from the feed inlet to the tower kettle, soak for 2 hours, heat the tower kettle to boil, and keep boiling for 2 hours, set the reflux ratio at the top of the tower to 5, and the flow rate of the feed inlet 5L / min, the extraction solution is continuously extracted from the tower kettle, and the methanol extracted from the top of the tower is returned to the solvent tank for recycling.

[0051] Adjust the pH value of the extract to 4, use ADS-5 macroporous adsorption resin to absorb to saturation, use deionized water, 20% ethanol aqueous solution, and 50% ethanol aqueous solution to el...

Embodiment 3

[0054] Take 10kg of dried black rice, wash it twice with deionized water, dry it with hot air, crush it, and pass it through an 80-mesh sieve. Add the sieved black rice to the extraction tower, then add 50L of deionized water to it, and soak for 2 hours , heated and boiled under 1.1MPa pressure, and kept boiling for 2h to obtain extract 1, then added 100L chloroform to the remaining residue, heated and boiled under 1.1MPa pressure, and kept boiling for 2h, obtained extract 2, mixed and extracted Solution 1 and Extract Solution 2, respectively concentrate Extract Solution 1 and Extract Solution 2 to 30% of the added volume, then use ADS-5 macroporous adsorption resin to absorb the concentrated Extract Solution 1 and Extract Solution 2 to saturation respectively, and then respectively Use deionized water, 30% ethanol solution, and 60% ethanol solution to elute the macroporous adsorption resin, mix the eluents, and concentrate under reduced pressure at 10KPa and 45°C to recover th...

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Abstract

The invention provides a black rice extract. The mass content of cyaniding in the black rice extract is 0.5-50%. The invention further provides a method for preparing the black rice extract and the application of the black rice extract to skin care products. The content of active ingredients in the black rice extract is high. Besides whitening, the black rice extract can also well resist aging and keep skin elastic by promoting collagen secretion; the black rice extract can remove free radicals in human cells so as to resist aging, and can be added to skin care products as a composite additive.

Description

technical field [0001] The invention belongs to the field of biochemistry, and relates to an extract, a preparation method thereof and a cosmetic containing the extract, in particular to a black rice extract, a preparation method thereof and an application in cosmetics. Background technique [0002] Since ancient times, herbal ingredients have been used in cosmetic formulations. With the development of science, there are many new technologies available for the treatment of skin aging. However, natural herbal products are still very attractive and have a broad market because of their high efficiency and low toxicity. Studies have confirmed that more and more herbal chemicals are beneficial to the skin, and many extracts and compounds have significant potential to treat skin aging, and their mechanisms have been preliminarily elucidated. For skin aging, the application of natural herbal products mainly targets these targets: repairing the extracellular matrix (ECM); resistin...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61K8/9794A61Q19/00A61Q19/02A61Q19/08
CPCA61K8/97A61Q19/00A61Q19/02A61Q19/08
Inventor 洪民华刘丹洪奇吕智卢艳花何浩朱理
Owner SHANGHAI INOHERB COSMETIC
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