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СПОСОБ ПОЛУЧЕНИЯ ТАКСИФОЛИНА ИЗ ДРЕВЕСИНЫ
专利权人:
ЛДА АГ (CH)
发明人:
ВИСБЕК Франц (CH)
申请号:
RU2014135572
公开号:
RU2014135572A
申请日:
2012.02.02
申请国别(地区):
RU
年份:
2016
代理人:
摘要:
1. A process for preparing taxifolin, comprising the following steps: laying layers of wood particles in a percolator, extracting wood particles in percolator with ethanol to dissolve at least resins, oils and taxifolin, removing ethanol extract from percolators, ethanol extract and purification to obtain the following steps Taxifolin the following sequence: - preparation of a mixture of water and ethanol extract, - mixing the mixture at a temperature of from 70ºC to 99ºC, so that the Taxifolin goes into solution in the aqueous phase mixture, - cooling the mixture to a temperature less than 65ºC for deposition and removal of the resin phase and the oil phase from the aqueous phase, - Taxifolin adding seed crystals to the aqueous phase, - exposing the aqueous phase at a temperature of from 0ºC to 30ºC for crystallising taxifolin, u compartment crystallized Taxifolin rastvora.2 from the mother. The method of claim. 1, characterized in that the concentration of the ethanolic extract produced by evaporation prior ochistkoy.3. Process according to one of the preceding claims, characterized in that the ethanol used for extraction with the concentration of least 70% smaller, preferably at least 80%, particularly preferably at least 95% .4. The method of claim. 1, characterized in that the preparation of the mixture takes place at a temperature from 70ºC to 95ºC.5. The method of claim. 1, characterized in that the reduction of produced ethanol in the mixture by evaporation immediately before and / or during mixing smesi.6. The method of claim. 1, characterized in that the stirring of the mixture takes place actively, preferably via meshalki.7. The method of claim. 1, characterized in that directly before and / or during the stirring mixture was added1. Способ получения таксифолина, включающий следующие стадии:укладывание слоями частиц древесины в перколяторе, экстрагирование частицы древесины в перколяторе этанолом до растворения по меньшей мере смол, масел и таксифолина, в
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