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Process for processing byproducts of salicin production using Salix babylonica L. bark

A by-product, salicin technology, which is applied in the direction of sugar derivatives, sugar derivatives, sugar derivatives preparation, etc., can solve the problem of waste of resources, achieve the effect of saving resources, requiring less equipment, and improving resource utilization

Inactive Publication Date: 2017-01-11
陕西佰瑞生物化工有限责任公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, salicin is mainly produced from white willow bark, and a large number of by-products will be produced in the production, and the by-products contain about 5% salicin. For these by-products, if they are not treated, a large amount of resources will be wasted

Method used

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  • Process for processing byproducts of salicin production using Salix babylonica L. bark

Examples

Experimental program
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Effect test

Embodiment 1

[0026] Dissolution: Add 20 times the amount of hot water to dissolve the by-products, stir evenly, and let stand for 24 hours.

[0027] Filtration: Plate-and-frame filtration to remove insoluble matter and collect the clarified filtrate.

[0028] Column packing: 30 times the volume of macroporous resin, wash the impurities with ethanol, and wash with water until there is no alcohol.

[0029] Column loading: the filtrate is loaded onto the column, and is adsorbed to saturation by a macroporous resin. The macroporous resin used is LSD-21 macroporous resin, washed with water, and then eluted with ethanol with a concentration of 70-85% for analysis, and collected and eluted liquid, and concentrated under reduced pressure.

[0030] Decolorization: add a decolorizer to the concentrated solution, heat to about 70°C, stir for 30 minutes, filter with plate and frame, and collect the filtrate.

[0031] Crystallization: The filtrate was concentrated under reduced pressure at 0.08Mpa an...

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Abstract

The invention relates to a process for processing byproducts of salicin production using Salix babylonica L. bark. The process includes: performing primary filtration on the byproducts, collecting the filtrate of the primary filtration, absorbing the filtrate of the primary filtration with an absorption column, eluting the absorption column with eluting liquid and collecting eluate, concentrating the eluate, performing secondary filtration and collecting the filtrate of the secondary filtration, concentrating the filtrate of the secondary filtration, using 95% ethanol to perform dissolution crystallization, collecting crystalized crystals, and drying to obtain salicin, wherein the filling material of the absorption column is macroporous resin, and the eluting liquid is ethanol solution. The process has the advantages that the salicin in the byproducts can be recycled, water and ethanol are used as the solvent, the macroporous resin is used for absorption, and content can be increased to more than 95%; the macroporous resin can be reused, resource utilization rate is increased, production cost is lowered, and the process is simple to operate, low in equipment requirement and suitable for large-scale production.

Description

technical field [0001] The invention relates to the field of salicin production, in particular to a process for treating by-products of salicin production from white willow bark. Background technique [0002] Salicin mainly comes from the branches, leaves or bark of weeping willow. After salicin is absorbed by the human body, salicylic acid is produced, which has the functions of clearing away heat, diuresis, anti-inflammatory and detoxification. Add acetic acid to salicylic acid, and the compound is aspirin, the "wonder drug" for colds. Willow skin can reduce inflammation, improve eyesight, and dispel wind. It has always been a good medicine for people to treat colds. [0003] At present, salicin is mainly produced from white willow bark, and a large number of by-products will be produced in the production. The by-products contain about 5% salicin. If these by-products are not treated, a large amount of resources will be wasted. Contents of the invention [0004] The ob...

Claims

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Application Information

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IPC IPC(8): C07H15/203C07H1/06
CPCC07H15/203C07H1/06
Inventor 张宏宣
Owner 陕西佰瑞生物化工有限责任公司
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