A kind of method for preparing eucommia ulmoides refined gum by purifying aqueous solution of eucommia seed peel crude gum

Abstract

The invention discloses a method for preparing Eucommia ulmoides refined gum by purifying an aqueous solution of Eucommia seed peel crude gum. Carry out according to the following steps: a. take the seed skin of Eucommia pterosa as raw material, hydrolyze the plant tissue with biological enzymes to extract solid residues to obtain Eucommia crude gum; b. use biological enzymes to deeply and finely degrade the Eucommia crude gum, In order to remove the residual cell wall on the Eucommia ulmoides gum; c. After removing the cell wall, add a wetting surfactant; d. After adding the wetting surfactant, carry out ultrasound to make the residual Eucommia plant tissue fragments peel off from the Eucommia gum; e. After ultrasonication, the Eucommia crude gum from which the cell wall has been removed is heated and stirred in a water bath at 65 to 85°C, so that the Eucommia gum is loosely and stretched in the aqueous solution to release the residual Eucommia plant tissue entrained in the micelle and peeled off. Fragments. The eucommia ulmoides essence prepared by the invention is in the form of natural loose silk flocs, does not contain any organic solvents and chemicals, and has unlimited wide application.

Description

technical field [0001] The invention relates to a preparation method of Eucommia ulmoides essence gum, in particular to a method for purifying an aqueous solution of Eucommia seed peel crude gum to prepare Eucommia ulmoides essence gum. Background technique [0002] Du swollen gum, known internationally as Gutta-Percha or Chinese Gutta-Percha or Balata, is an isomer of natural cloverleaf rubber and is trans-polyisoprene ene. Among them, the distribution of eucommia gum in the leaves of Eucommia ulmoides is 2-4% of the dry weight, 8-12% in the mature fruit, 6-10% in the stem bark, 10-12% in the root bark, and 8-12% in the seed bark. It is the most economical to produce eucommia gum with seed skin as raw material. At present, the preparation method of eucommia gum is mainly to degrade plant tissues in a targeted manner by biological enzymes, and after dissolving the natural products with high biological activity, the residual solid residue is rich in the original ecological ...

AI Technical Summary

Problems solved by technology

[0006] The eucommia gum prepared by the organic solvent method has a disadvantage: the eucommia gum prepared by it is in the form of agglomerated block (agglomerated block), which changes the existing morphology of eucommia collagen

In addition, the eucommia gum prepared by this method may contain residual organic solvents and can only be used as industrial raw materials, which greatly limits the use of eucommia gum

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