Method for preparing crystalline salicin from salicaceae plants

A salicin and plant technology, applied in the field of plant extraction, can solve problems such as explosion, easy environmental pollution, consumption, etc., and achieve the effects of low production cost, no environmental pollution, and high yield
CN102020686AInactive Publication Date: 2011-04-20吴韬
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
吴韬
Publication Date
2011-04-20
Estimated Expiration
Not applicable · inactive patent

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Abstract

A method for preparing crystalline salicin from salicaceae plants takes branches or leaves of salicaceae plants as raw materials and comprises the following steps: pulverizing the raw materials and adding quicklime; extracting the mixture by using water as the solvent; filtering the extract by a membrane device; concentrating the membrane permeate liquid to obtain a specific gravity of 1.10-1.20; allowing to stand for white crystal precipitation; washing by water or ethanol; drying to obtain crystalline salicin. Compared to the prior art, the present invention performs the extraction by using water as the solvent; achieves the advantages of low production cost, high yield, less three wastes and no environmental pollution; and is applicable to large-scale and industrial production.
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Description

Technical field:

[0001] The invention relates to a large-scale production process for purifying and preparing high-content crystalline salicin from extracts of Salicaceae plants, belonging to the technical field of plant extraction, in particular to a method for preparing crystals from Salicaceae plants. Background technique:

[0002] Salicin (salicin; salicoside) is also known as salicin, salicin. 1g is soluble in 23ml of water, 3ml of boiling water, 90ml of ethanol, soluble in alkali solution, pyridine and glacial acetic acid, insoluble in ether and chloroform. Naturally present in the branches and stems of Salicaceae plants. In the European market, salicin is mainly used as a dietary supplement and weight-loss food. In the cosmetics industry, it is used to relieve skin redness, remove aging cutin, and inhibit acne. Adding it to shampoo can reduce dandruff. The market demand is huge.

[0003] Salicin has been detected from a variety of Salicaceae plants such as: [000...

Claims

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