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Title:
INDUSTRIAL UTILIZATION METHOD FOR STEVIA REBAUDIANA AND STEVIOSIDE AND CHLOROGENIC ACID OF STEVIA REBAUDIANA
Document Type and Number:
WIPO Patent Application WO/2020/063894
Kind Code:
A1
Abstract:
An industrialization method for comprehensive utilization of stevia rebaudiana. The major improvement is in that the stevia rebaudiana is extracted by using a high-concentration alcohol solution, then the extracted solution is purified by using an organic solvent, and the pH of the extracted solution is adjusted to be alkaline according to the acidic characteristic of chlorogenic acid to enable the chlorogenic acid to be formed into a salt and have an increased polarity so as to achieve effective separation of the chlorogenic acid and a glucoside component in an adsorption process. The method allows the high-quality stevioside and chlorogenic acid to be obtained, significantly improves the comprehensive utilization rate of stevia rebaudiana, reduces the waste of natural stevia rebaudiana resources, reduces the resource consumption in a production process, reduces waste discharge, and is a high-benefit green production process.

Inventors:
XU MEILI (CN)
LIAN YUNHE (CN)
TIAN HONG (CN)
GAO WEI (CN)
XU YACHAO (CN)
Application Number:
PCT/CN2019/108619
Publication Date:
April 02, 2020
Filing Date:
September 27, 2019
Export Citation:
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Assignee:
CHENGUANG BIOTECH GROUP CO LTD (CN)
International Classes:
C07H1/08; C07C67/48; C07H15/256
Domestic Patent References:
WO2008122990A12008-10-16
Foreign References:
CN109293712A2019-02-01
CN102617667A2012-08-01
CN106674307A2017-05-17
CN105001281A2015-10-28
CN101798329A2010-08-11
Other References:
ZHANG LI'NA ET AL.: "Research on extraction and purification of stevioside from stevia leaves", CHINA CONDIMENT, 31 January 2008 (2008-01-31), pages 58 - 59
Attorney, Agent or Firm:
CN-KNOWHOW INTELLECTUAL PROPERTY AGENT LIMITED (CN)
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