Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Uses of Rhododendron Extract

A plant extract, the technology of Aurantia genus, applied in the direction of dressing preparations, skin care preparations, pharmaceutical formulations, etc., can solve the problems of freckle removal, whitening, wrinkle removal, sun protection or anti-aging of plants of the genus Aurantia genus. question

Active Publication Date: 2020-03-31
SUZHOU NEUPHARMA CO LTD
View PDF13 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For this reason, people use various anti-aging cosmetics, mainly by adding antioxidants (such as SOD, vitamin E, etc.) to directly exert anti-oxidative effects. This type of cosmetics has certain anti-aging effects, but most of them cannot effectively solve the above-mentioned skin problems question
At present, there is no report on the application of plants of the genus Amethyst in freckle removal, whitening, wrinkle removal, sun protection or anti-aging functional cosmetics

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Uses of Rhododendron Extract
  • Uses of Rhododendron Extract
  • Uses of Rhododendron Extract

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0062] The dried leaves of Callicarpa cathayana H.T.Chang were crushed to the coarsest powder, and extracted by percolation with 90% ethanol at a flow rate of 1 mL / h per gram of dried leaf powder of Callicarpa cathayana H.T.Chang for 10 h. The percolation liquid is collected, and the percolation liquid is concentrated under reduced pressure to remove ethanol, and the volume of the concentrated liquid is equivalent to the amount of medicinal materials. Add double the volume of water, let it stand overnight, and centrifuge to obtain the supernatant. Make the supernatant pass through the D101 macroporous adsorption resin column, wash the impurities with water of 6 times the bed volume of the resin column, discard the washing solution, and then elute with 40% ethanol of 3 times the bed volume of the resin column, collect eluent. The eluate was concentrated under reduced pressure to remove ethanol. Dilute the concentrated solution with water to the volume of the initial supernata...

Embodiment 2

[0064] Crush the dried stems and leaves of Callicarpa cathayana H.T.Chang to the coarsest powder, add 12 times the amount (that is, 12ml / g dried stems and leaves of Callicarpa cathayana H.T.Chang) of 80% ethanol, and flash extract for 3 minutes. Extract twice, combine the extracts, concentrate under reduced pressure to remove ethanol, the volume of the concentrate is equivalent to the amount of medicinal materials. Add double the volume of water, let it stand overnight, and centrifuge to obtain the supernatant. Make the supernatant pass through the D101 macroporous adsorption resin column, wash with water of 6 times the bed volume of the resin column, discard the washing solution, elute with 30% ethanol of 3 times the bed volume of the resin column, and collect the eluted liquid. The eluate was concentrated under reduced pressure to remove ethanol. Dilute the concentrated solution with water to the volume of the initial supernatant, then pass through the polyamide chromatogr...

Embodiment 3

[0066] Crush the dried leaves of Callicarpa formosana Rolfe to the coarsest powder, add 12 times the amount (ie, 12ml / g dry leaf powder of Callicarpa formosana Rolfe) of 70% ethanol, and perform flash extraction for 3 minutes, and the extraction frequency is 2 times. Combine the two extracts, concentrate the extract under reduced pressure to remove ethanol, and the volume of the concentrate is equivalent to the amount of medicinal materials. Add double the volume of water, let it stand overnight, and centrifuge to obtain the supernatant. Make the supernatant pass through the D101 macroporous adsorption resin column, wash with water of 6 times the bed volume of the resin column, discard the washing solution, elute with 30% ethanol of 4 times the bed volume of the resin column, and collect the eluted liquid. Concentrate the eluent under reduced pressure and dry to obtain the extract of Rhododendron flower leaf as a tan uniform powder.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention provides application of callicarpa plant extract in preparation of cosmetics used for removing freckles, whitening skin, removing wrinkles, protection from sun or preventing aging. The callicarpa plant extract has functions of suppressing activity of tyrosinase, clearing free radicals, reducing ultraviolet absorption and resisting skin aging. Callicarpa plants are extensive in source, long in using history and simple in extract preparation process. The callicarpa plant extract is a cosmetic functional raw material which is economically affordable, safe and effective. The invention further provides the cosmetics prepared by the callicarpa plant extract.

Description

technical field [0001] The invention relates to the field of cosmetics, in particular to the use of plant extracts from the genus Asteraceae in preparing cosmetics. Background technique [0002] The skin is the largest organ and tissue of the human body, which can protect the body from harmful external factors (such as ultraviolet rays, chemical irritants, heavy metals, and some exogenous pollutants). In addition to the natural function degradation brought about by age, factors such as modern fast-paced, high-stress lifestyles, unrestrained diet, and environmental deterioration have accelerated the degradation and aging of skin functions, leading to a series of skin problems. [0003] Modern research believes that the human body will produce excessive active oxygen free radicals during the metabolic process. If it is not removed in time, it will cause oxidative damage to the skin, resulting in skin aging, degeneration, relaxation, loss of elasticity, and wrinkles. Therefore...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): A61K8/9789A61Q19/02A61Q17/04A61Q19/08
Inventor 刘敬阁程屹俊曹进国朱永亮钱向平
Owner SUZHOU NEUPHARMA CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com