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A method for extracting eucommia gum from eucommia husk

A technology of eucommia gum and fruit shell, which is applied in the field of extracting eucommia gum, can solve the problems of high cost, harm to human body, and little effect, and achieve the effect of reducing cost, reducing dosage, and shortening time

Active Publication Date: 2018-04-20
江苏圣耐谱特新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

These several methods have advantages and disadvantages respectively: the main disadvantage of the solvent method is: the raw material treatment is not sufficient enough, the glue component cannot be fully leached, the yield is affected, and the glue separated out by leaching is sticky; the organic solvent is flammable and toxic, and is harmful to the human body. Serious hazards, poor security
The disadvantage of microbial fermentation or enzymatic hydrolysis is that the fermentation time is long, and it has little effect on the non-glue part of Eucommia ulmoides fruit, and the purity of the obtained glue is not high
The enzymatic hydrolysis method has the characteristics of high efficiency and specificity, but at present, the method requires high cost

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] The method for extracting eucommia gum from eucommia husk, the operation steps are:

[0031] (1) 1 kg of eucommia husk (the husk after deseed by the eucommia sheller) is mechanically crushed with a small pulverizer (rotating speed 15000 rpm, power 1000W) until flocculent (about 5 minutes), and then Sieve through a 24-mesh sieve to remove 30-40% of wood fibers.

[0032] (2) be that the ozone generator of 3000mg / h ozone production produces ozone with power and pass in the airtight glass container that fills the floc residue of gained in the step (1), continue oxidation 2 hours.

[0033] (3) Repeat the process of steps (1)-(2) 4-5 times, and the crushing time of each time should be reduced by about 1 minute compared with the previous one.

[0034] (4) After sieving the flocculent residue obtained in step (3), soak it with water, and then place the flocculent residue in a blast drying oven at 40°C to dry until the whole is just whitish, and the water content is kept at 5-...

Embodiment 2-5

[0038] According to the preparation method of Example 1, change the ozone oxidation time parameters: control each oxidation time of step (2) to 1 hour, 1.5 hours, 2.5 hours, and 3 hours respectively, and the other steps are the same as in Example 1, and finally Eucommia is obtained Coarse glue. After purification in step (6), the refined gel was obtained, and the specific results are shown in Table 1 below.

[0039] Example

[0040] According to Table 1, it can be found that the longer the oxidation time is, the higher the purity of Eucommia crude gum is, but the more gum is oxidized, so the extraction rate is lower.

Embodiment 6-9

[0042] According to the preparation method of Example 1, change the number of cycles in step (3) 2 times, 3 times, 6 times, 8 times, and other steps are the same as in Example 1, and the Eucommia crude gum obtained is finally purified through step (6) Obtain fine glue, experimental result is as follows table 2:

[0043] Example

[0044] According to Table 2, it can be found that the more the number of cycles, the higher the purity of Eucommia crude gum, but the more the gum is oxidized, the lower the extraction rate.

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Abstract

The invention provides a method for extracting eucommia ulmoides gum from eucommia ulmoides shell.The refined eucommia ulmoides gum is extracted through mechanical crushing, ozone oxidation, rinsing, drying, purifying and the like.The purity of the refined eucommia ulmoides gum reaches 99.9%, and the gum extracting rate reaches 18%.The method is high in extracting rate, short in extracting time, low in cost, almost zero in environmental pollution, and the like.

Description

technical field [0001] The invention relates to a method for extracting eucommia gum from eucommia husk. The method has the characteristics of high extraction rate, high purity of obtained eucommia gum, short extraction time, low cost and low environmental pollution. Background technique [0002] Duzhong rubber is a unique resource in my country, has its own unique properties, has a wide range of uses, is the best substitute for natural rubber, and has a huge development prospect. Eucommia gum can be mainly used in industries such as aerospace, navigation, national defense and medicine, and there are many fields and products that can be developed. my country is a big rubber consumer, and the lack of natural rubber resources will seriously restrict the development of my country's rubber industry. It is imminent to find other resources that can replace rubber. The country's demand for natural rubber resources has now been raised to a strategic level, and the industrialization...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08J3/00C08L7/00
CPCC08J3/00C08J2307/00C08L7/00
Inventor 何兴兵林永慧
Owner 江苏圣耐谱特新材料有限公司