Preparation method of tenuifolin

Abstract

The invention discloses a preparation method of tenuifolin. The tenuifolin is prepared from a radix polygalae medicinal material, 90% ethanol, activated carbon and alkali. The preparation method disclosed by the invention has the beneficial effects that the radix polygalae medicinal material, which is wholly dried, is used at first and important components in the radix polygalae medicinal materialare not evaporated along moisture in an airing process; the medicinal properties of the radix polygalae medicinal material are sufficiently kept; after being sliced, the radix polygalae medicinal material is crushed, so that the radix polygalae medicinal material can be rapidly crushed and the crushed grain diameter is relatively uniform; the alkali is used for hydrolysis according to the components of radix polygalae; the step is intended to protect a saponin component needing to be extracted; meanwhile, other substances are damaged, so that bad influences, caused by a following saponin extraction step, on a procedure are avoided; considering that impurities in an extracting solution are excessive and the de-coloring effect of the activated carbon is influenced, the sequence of first centrifuging and then de-coloring is adopted; and the impurities in the centrifuged extracting solution are less and the activated carbon can sufficiently play a role, so that the de-coloring is more complete and a water-bath heating procedure is convenient for crystallizing the tenuifolin.

Description

technical field [0001] The invention discloses a method for preparing polygala saponin, belonging to the technical field of saponin preparation. Background technique [0002] Polygala, also known as 葽环, 蕀蒬, etc. Produced in Northeast China, North China, Northwest China, Central China and Sichuan; perennial herb with strong taproot and fleshy phloem. It has the functions of calming the mind, eliminating phlegm, and reducing swelling. It is used for insomnia, dreaminess, forgetfulness, palpitations, trance, unpleasant cough, sore swelling, and breast swelling and pain caused by heart-kidney disharmony. [0003] In the prior art, the extraction of polygala saponins is mostly cumbersome, and the existing processes have fewer types and lower variability, and there are still some steps in the process that can be simplified, replaced and new. Contents of the invention [0004] The technical problem to be solved by the present invention is to overcome that in the prior art, the ...

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Problems solved by technology

[0004] The technical problem to be solved by the present invention is to overcome that in the prior art, the extraction of polygala saponins is mostly cumbersome, and the existing processes have fewer types and lower variability, and there are still some simplification, replacement and new steps in the process. problem, a preparation method of polygala saponin is provided, thereby solving the above problems