A process for preparing a pharmaceutically-active extract of the root of a plant of the family Valerianacae, specifically,
Valeriana officinalis
L., is described. This process comprises the steps of adding the roots to an alcoholic extraction solvent to form a mixture, wherein the alcoholic extraction solvent comprises between approximately 50% to approximately 100% (v/v) in a remainder of water, and heating the mixture to a temperature of between approximately 70° C. to approximately 80° C. for a period of at least approximately two hours. By this process valerenic acid is obtained in the extract, and the extract has a content of valepotriates and valepotriate degradation products or derivatives that is substantially reduced with respect to the content of valepotriates in the roots, and has a content of valerenic acids that is not substantially reduced with respect to the content of valerenic acids in the roots. Also preferably, the content of volatile oils in the extract is also not substantially with respect to the content of volatile oils in the roots. A pharmaceutically-active extract of the root of a plant of the family Valerianaceae is also described. This extract is obtained by a process comprising the steps of adding the roots to an alcoholic extraction solvent to form a mixture, wherein the alcoholic extraction solvent comprises between approximately 50% (v/v) to approximately 100% (v/v) in a remainder of water, and heating the mixture to a temperature of between approximately 70° C. to approximately 80° C. for a period of at least approximately two hours. This extract may be used in the formulation of an ingestible form, preferably exhibiting sedative and/or muscle relaxant, and/or anxiolytic activity.
一种制备缬草科植物(具体地说是缬草属)根部具有药用活性的
提取物的工艺、
Valeriana officinalis
L.)根部的药用活性
提取物的制备方法。该工艺包括以下步骤:将根茎加入醇提溶剂中形成混合物,其中醇提溶剂在剩余的
水中含量约为 50%至 100%(v/v),然后将混合物加热至约 70°C 至约 80°C 的温度,持续至少约两小时。通过这一过程,萃取物中可获得
缬草烯酸,萃取物中的
缬草烯酸盐和
缬草烯酸盐降解产物或衍
生物的含量与根中
缬草烯酸盐的含量相比大大降低,而
缬草烯酸的含量与根中
缬草烯酸的含量相比则不会大大降低。此外,萃取物中挥发油的含量最好也不低于根中挥发油的含量。还描述了一种具有药用活性的缬草科植物根
提取物。这种
提取物是通过以下步骤获得的:将根加入
酒精提取溶剂中形成混合物,其中
酒精提取溶剂在剩余的
水中的含量约为 50%(v/v)至 100%(v/v),然后将混合物加热至约 70°C 至约 80°C 的温度,持续至少约两小时。这种
提取物可用于配制可摄取剂型,最好具有镇静和/或肌肉松弛和/或抗焦虑活性。