发明公开
EP2809310A1 VERFAHREN ZUR HERSTELLUNG VON TAXIFOLIN AUS HOLZ 有权
用于生产二氢WOOD

  • 专利标题: VERFAHREN ZUR HERSTELLUNG VON TAXIFOLIN AUS HOLZ
  • 专利标题(英): Method for producing taxifolin from wood
  • 专利标题(中): 用于生产二氢WOOD
  • 申请号: EP12703448.6
    申请日: 2012-02-02
  • 公开(公告)号: EP2809310A1
    公开(公告)日: 2014-12-10
  • 发明人: WIESBECK, Franz
  • 申请人: LDA AG
  • 申请人地址: Sihleggstrasse 23 8832 Wollerau CH
  • 专利权人: LDA AG
  • 当前专利权人: LDA AG
  • 当前专利权人地址: Sihleggstrasse 23 8832 Wollerau CH
  • 代理机构: Hoefer & Partner
  • 国际公布: WO2013113329 20130808
  • 主分类号: A61K31/085
  • IPC分类号: A61K31/085 A61K31/352 A61K36/15 B01D9/00 B01D11/02
VERFAHREN ZUR HERSTELLUNG VON TAXIFOLIN AUS HOLZ
摘要:
The invention relates to a method for producing taxifolin, having the following steps: stacking wood particles in a percolator; extracting the wood particles in the percolator using ethanol in order to dissolve at least resins, oils, and taxifolin; conducting the ethanol extract out of the percolator; and purifying the ethanol extract in order to produce taxifolin using the following steps in the given sequence: producing a mixture of water and the ethanol extract; mixing the mixture at 70 °C to 99 °C such that the taxifolin dissolves in the water phase of the mixture; cooling the mixture to below 65°C in order to separate and conduct the resin phase and the oil phase from the water phase; adding taxifolin seed crystals to the water phase; controlling the temperature of the water phase to 0 °C to 30 °C in order to crystallize the taxifolin; and separating the crystallized taxifolin from the mother liquor.
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