Title:
CAMELLIA EXTRACTION LIQUID, PREPARATION METHOD THEREFOR, AND APPLICATIONS THEREOF
Document Type and Number:
WIPO Patent Application WO/2018/019145
Kind Code:
A1
Abstract:
A preparation method for a camellia extraction liquid comprises the following steps: 1) removing impurities of fresh camellia and/or fresh camellia buds; cutting the fresh camellia and/or fresh camellia buds into small sections for use as raw materials; 2) placing a certain quantity of raw materials into an ultrasonic vessel; adding a solvent having the mass ratio being 1:(3-30); uniformly stirring the mixture; adding a certain amount of inorganic acid and/or organic acid; regulating the pH value to 1.3 to 3.0; soaking the materials for 10 min to 30 min; and 3) then performing ultrasonic treatment for 30 min to 60 min; controlling the ultrasonic frequency to be 20 KHz to 25 KHz, the ultrasonic power to be 1.0 KW to 2.0KW and the ultrasonic temperature to be 15℃ to 50℃; then performing filtration, sterilization and detection to obtain camellia extraction liquid. The camellia extraction liquid maintains the color, luster, flavor and effective active ingredients of the camellia to the maximum degree; the anti-oxidation functional ingredients are overall, and the anti-oxidation functional ingredients has high contents, and are safe and stable; cosmetics prepared by using camellia extraction liquid as active ingredients have excellent whitening, spot-reducing and anti-aging efficacies.
Inventors:
HUANG YONGQIAN (CN)
YANG ZHEN (CN)
YANG ZHEN (CN)
Application Number:
PCT/CN2017/093117
Publication Date:
February 01, 2018
Filing Date:
July 17, 2017
Export Citation:
Assignee:
SHANGHAI DEGAO IND CO LTD (CN)
International Classes:
A61K8/97; A61Q19/00; A61Q19/02; A61Q19/08
Domestic Patent References:
| WO2016016515A1 | 2016-02-04 |
Foreign References:
| CN105997754A | 2016-10-12 | |||
| CN103897429A | 2014-07-02 | |||
| KR20120049459A | 2012-05-17 |
Other References:
AZUMA CINTHIA M. ET AL.: "Flavonoids and fatty acids of Camellia japonica leaves extract", REVISTA BRASILEIRA DE FARMACOGNOSIA BRAZILIAN JOURNAL OF PHARMACOGNOSY, 29 July 2011 (2011-07-29), pages 1159 - 1162, XP018502574, ISSN: 0102-695X, DOI: doi:10.1590/S0102-695X2011005000128
Attorney, Agent or Firm:
SHANGHAI HUAGONG PATENT AGENCY (CN)
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