发明名称 |
PROCESS FOR EXTRACTING AND PURIFYING LIGNANS AND CINNAMIC ACID DERIVATIVES FROM FLAXSEED |
摘要 |
<p>A process is described for extracting lignans from flaxseed which comprises contacting a substantially oil-free flaxseed meal with an aliphatic alcohol solvent, e.g. a mixture of methanol or ethanol with water, to extract lignans into the alcohol solvent and separating residual solids from the lignan-rich alcohol solvent. The lignan-rich alcohol solvent is concentrated by removing solvent therefrom and the lignan concentrate obtained is subjected to a base-catalyzed hydrolysis to liberate lignans therefrom in a non-complexed form. Thereafter, the hydrolyzed concentrate is subjected to either a liquid/liquid partition, e.g. by an ethyl acetate/water system, or anion exchange to further enrich the lignans and the lignan-enriched solution thus obtained is subjected to chromatographic separation to isolate lignans at a purity of greater than 90 percent. The lignan, secoisolariciresinol diglucoside, was found in amounts of up to 20 mg per gram of defatted flaxseed.</p> |
申请公布号 |
EP0817824(A2) |
申请公布日期 |
1998.01.14 |
申请号 |
EP19960907972 |
申请日期 |
1996.03.29 |
申请人 |
HER MAJESTY IN RIGHT OF CANADA, REPRESENTED BY THE MINISTER OF AGRICULTURE AND AGRI-FOOD CANADA |
发明人 |
WESTCOTT, NEIL, D.;MUIR, ALISTER, D. |
分类号 |
C07H1/08;(IPC1-7):C11B1/00 |
主分类号 |
C07H1/08 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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