A kind of co-production extraction and separation method of eucommia fine powder, eucommia polysaccharide and eucommia gum

Abstract

The invention discloses a method for extracting and separating eucommia ulmoides flavor powder, eucommia ulmoides oliv polysaccharides and eucommea rubber through coproduction. The method comprises the following steps: pretreating, extracting, performing tube film filtration and preparing the finished product, wherein the step of preparing the finished product comprises the following steps: preparing the eucommia ulmoides flavor powder, preparing eucommia ulmoides water extract polysaccharides, preparing eucommia ulmoides alkaline extraction polysaccharides and preparing the eucommea rubber. According to the method for extracting and separating eucommia ulmoides flavor powder, eucommia ulmoides oliv polysaccharides and eucommea rubber through coproduction disclosed by the invention, comprehensive development and utilization of eucommia ulmoides biomass resources is effectively realized, the cost of the eucommia ulmoides in the development process is reduced, and a high-valued utilization path of the eucommia ulmoides is expanded. Moreover, the extract residues are subjected to enzyme hydrolysis to extract the eucommea rubber after the eucommia ulmoides flavor powder and polysaccharides are extracted, the extraction cost of the eucommea rubber is greatly reduced, the method is fewer in process steps, simple in equipment, convenient to operate and short in extraction and separation time, industrial production of the eucommea rubber is facilitated, the biological nature, physical properties and physical states of the rubber are maintained, and the original molecular structure and degree of polymerization are maintained.

Description

Technical field: [0001] The invention belongs to the field of extraction and separation of natural products, and more specifically relates to a co-production extraction and separation method for extracting eucommia fine powder, eucommia polysaccharide and eucommia gum from eucommia bark and leaves. Background technique: [0002] Eucommia ulmoides Oliv. is a rare and precious woody medicinal plant unique to my country. It is called a "living fossil plant" and is also a relict plant of the Tertiary Period that only exists in my country. , mainly located in Gansu, Shaanxi, Shanxi, Henan, Hunan, Hubei, Sichuan, Yunnan, Guizhou, Guangxi, Jiangxi, Fujian and other provinces and autonomous regions from plains to hills and mountains at an altitude of 1,690 meters. The natural center is in central China. Since the 1980s, driven by the upsurge of Eucommia production, various places have taken the development of Eucommia as an important measure to adjust the structure of forestry tree s...

AI Technical Summary

Problems solved by technology

[0003] The development and high-value utilization of eucommia resources has always been a major problem in the field of eucommia and its industry, especially in the research and application of eucommia gum as a polymer material. At present, most of the research focuses on the primary modification or direct utilization of eucommia gum. , such as additives, blending components, etc., the development of a single Eucommia gum is costly and difficult, and there are few high-value Eucommia gum products. It can be seen that the low-cost utilization of Eucommia gum is not optimistic so far

In addition, most of the current industrial eucommia gum is the solvent method, which is seriously polluted. If a cleaner microbial method is used to extract the eucommia gum, the cycle will be long and the cost will be high. The molecular weight becomes smaller and the impurity content is more, which seriously affects its subsequent utilization

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