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Comprehensive exploration and utilization of active ingredients in branches and leaves of weeping willows

A technology of active ingredients and weeping willow, applied in the field of comprehensive development and utilization of active ingredients in weeping willow branches and leaves, can solve problems such as waste of resources and the like

Inactive Publication Date: 2013-06-19
李玉山
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, the single component of salicin is mainly extracted from the branches and leaves of weeping willow, which wastes resources

Method used

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Examples

Experimental program
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Embodiment Construction

[0012] Take 1000kg of fresh weeping willow branches and leaves, put them into a multi-functional extraction tank and add drinking water to extract, extract with 10, 8, and 6 times the amount of water at 80-90°C for 2h, 1.5h, and 1.0h, and the extract is in a plate frame After filtration, concentrate under reduced pressure at 70°C to a specific gravity of 1.15, cool the concentrated solution to 20-30°C, extract 3 times with an equal volume of petroleum ether (60-90°), add 3-5kg of activated carbon to the petroleum ether Under the condition of decolorization for 30min, filter, the filtrate was concentrated, crystallized, filtered and dried to obtain colorless crystalline pyrocatechol. The aqueous solution extracted with petroleum ether was extracted 3 times with an equal volume of diethyl ether, and 2kg of activated carbon was added to the diethyl ether solution to decolorize for 30 minutes in a slightly boiling state, filtered to remove the activated carbon, concentrated under r...

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Abstract

Provided is comprehensive exploration and utilization of active ingredients in branches and leaves of weeping willows. The technology of the comprehensive exploration and utilization of the active ingredients in the branches and the leaves of the weeping willows mainly comprises the following steps: (1) abstracting and concentrating; (2) alcohol precipitating and concentrating; (3) extracting; (4) preparing catechol; (5) preparing salicylic acid; and (6) separating tannin and saligenin. The technology of the comprehensive exploration and utilization of the active ingredients in the branches and the leaves of the weeping willows abstracts the saligenin, at the same time comprehensively, efficiently, and synchronously abstracts the other active ingredients of the catechol, the salicylic acid and the tannin and the like in the weeping willows.

Description

technical field [0001] The invention relates to the comprehensive development and utilization of active ingredients in weeping willow branches and leaves. Background technique [0002] A lot of research has been done at home and abroad on the functions of the branches and stems of Salicaceae Salicaceae Populus in medicine and other aspects, and flavonoids, terpenes, sterols, salicin, iodine, tannin, etc. have been isolated from them. It has been proved that it has the effects of lowering blood fat, lowering blood sugar, anti-oxidation, antibacterial and inhibiting tumor cells. According to "Shen Nong's Materia Medica", its leaves, branches, flowers, catkins, roots, etc. can be used as medicine, and it is widely used in folks to treat sores, beriberi and other inflammatory diseases. my country has a long history of using willow bark, branches, leaves, and catkins to treat diseases. Only "Compendium of Materia Medica" contains as many as 15 items. Cold; branches "phlegm heat ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07C39/08C07C37/70C07C65/10C07C51/42C07H15/203C07H13/08C07H1/08
Inventor 李玉山
Owner 李玉山
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