Eucommia ulmoides key fruit hull treating method beneficial to extraction of gutta-percha

Abstract

The invention discloses a eucommia ulmoides key fruit hull treating method beneficial to extraction of gutta-percha. The eucommia ulmoides key fruit hull treating method comprises the steps: (1), preparing an irpex lacteus seed solution; (2), inoculating and culturing a eucommia ulmoides key fruit hull; and (3), treating after fermenting. The dry weight of the treated eucommia ulmoides key fruit hull is reduced by 35-42 percent due to effective degradation of the irpex lacteus, the gutta-percha in the fruit hull can reach 50-60 percent, the efficiency and rate of extracting the gutta-percha by using organic solvents such as petroleum ether are greatly increased, and the glue quality is remarkably improved. The treatment effect of the eucommia ulmoides key fruit hull treating method is superior to an existing enzymic method and a distiller's yeast and yeast fermentation method; the eucommia ulmoides key fruit hull treating method has no damage to environment; the environment benefit of the eucommia ulmoides key fruit hull treating method is superior to that of an alkali treatment method; the eucommia ulmoides key fruit hull treating method is stronger in actual application value.

Description

technical field [0001] The invention relates to a method for processing eucommia samara shells, in particular to a method for enhancing the extraction of eucommia gum by treating the eucommia samurai shells with the eucommia alba. Background technique [0002] Eucommia gum is a new functional material. Eucommia gum and natural rubber produced in Hevea trilobata are isomers. Eucommia gum is trans-polyisoprene, and natural rubber is cis-polyisoprene. After vulcanization, Eucommia gum can be in rubber state or in different plastic states. There are many Eucommia gum products on the market, and its market application prospect is very broad. [0003] Eucommia gum mainly exists in the bark, leaves and fruits of Eucommia ulmoides, among which Eucommia samara has a gum content as high as 15%-30% and can be harvested every year, so it has become an ideal raw material for extracting Eucommia gum. In order to obtain eucommia gum with high purity, it is generally extracted with non-pol...

AI Technical Summary

Problems solved by technology

In order to obtain eucommia gum with high purity, it is generally extracted with non-polar organic solvents such as petroleum ether and then analyzed, but the penetration of non-polar solvents to hydrophilic substances such as cellulose, pectin and lignin is relatively low. Poor, the gum filaments in the Eucommia husk are wrapped and densely covered by plant cell tissues with cellulose, pectin and lignin as the main components, so there is a large transmission in the extraction process with non-polar solvents such as petroleum ether. Material resistance, the solvent is difficult to pass through the plant cell tissue to dissolve the Eucommia gum, and the solution dissolved in the Eucommia gum is also difficult to release, the extraction time is long and the efficiency is low, and there are still more Eucommia gum left in the shell after the gel is extracted

[0004] In order to reduce the mass transfer resistance, most of the existing technologies use enzymatic hydrolysis, biological fermentation or alkaline solution to pretreat the raw materials, and use enzyme preparations or alkaline solutions to erode the cell tissues of Eucommia ulmoides such as cellulose, pectin and lignin to enhance Solvent penetration, but enzymatic hydrolysis has the problems of long time, high cost and poor effect. Alkali treatment will produce a large amount of waste liquid, which seriously pollutes the environment; among many methods, biological fermentation is an ideal method, but Most of the current biological fermentations use koji and yeast for fermentation, which takes a long time and has poor effects. Therefore, it is necessary to screen strains with strong specificity and good treatment effects and develop the technology for treating Eucommia samara shells