Method of comprehensively extracting grease, proteins, aucubin, and eucommia ulmoides gum from eucommia seeds

A technique for comprehensive extraction of aucubin, applied in the fields of chemical industry and food, to achieve the effects of reducing emissions, high extraction yield, and reducing waste of resources

Active Publication Date: 2018-01-16
ZHENGZHOU UNIVERSITY OF LIGHT INDUSTRY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

He Guoju conducted a comprehensive extraction process on Eucommia ulmoides seed middle oil and eucommia gum (Journal of Guiyang University-Natural Science Edition, 2011.1); Liu Yulan et al. used eucommia ulmoides seed meal as raw material to extract aucubin by alcohol washing process and prepare concentrated protein (China Oils, Oils, 2017, 4); The Institute of Chemistry, Chinese Academy of Sciences invented a method for efficiently and continuously extracting Eucommia gum, Eucommia seed oil, Eucommia extrac...

Method used

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  • Method of comprehensively extracting grease, proteins, aucubin, and eucommia ulmoides gum from eucommia seeds
  • Method of comprehensively extracting grease, proteins, aucubin, and eucommia ulmoides gum from eucommia seeds
  • Method of comprehensively extracting grease, proteins, aucubin, and eucommia ulmoides gum from eucommia seeds

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] A comprehensive extraction method for oil, protein, aucubin and eucommia gum in Eucommia ulmoides seeds, the steps are as follows:

[0028] (1) Using Eucommia ulmoides seeds as raw material, after crushing eucommia ulmoides seeds to 20 meshes, a twin-screw extruder is used for extrusion puffing and granulation. The extrusion temperature during granulation is 220°C, and the water content of the granules after extrusion is 5%;

[0029] (2) After granulation, use a roller press to slab to a thickness of less than 0.5mm, and then press at 60°C and 4.0MPa to obtain eucommia seed oil A and cake B;

[0030] (3) The cake B obtained after pressing is first washed with 100% ethanol as an alcohol washing solvent to obtain washing liquid C and residue D;

[0031] (4) Washing liquid C was adsorbed by macroporous resin T8 and then eluted with 3 times column volume of acetone to obtain eluent E. The eluent was concentrated in vacuum at 60°C and dried to obtain aucubin F; residue D was...

Embodiment 2

[0039] A comprehensive extraction method for oil, protein, aucubin and eucommia gum in Eucommia ulmoides seeds, the steps are as follows:

[0040] (1) Using Eucommia ulmoides seeds as raw material, after crushing eucommia ulmoides seeds to 60 meshes, extruding and puffing granulation with a twin-screw extrusion device, the extrusion temperature during granulation is 200°C, and the water content of the granules after extrusion is 7%;

[0041] (2) After granulation, use a roller press to slab to a thickness of less than 0.5mm, and then press at 70°C and 3.8MPa to obtain Eucommia seed oil A and cake B;

[0042] (3) The cake B obtained after pressing is first washed with 50-100% ethanol as an alcohol washing solvent to obtain washing liquid C and residue D;

[0043] (4) Washing solution C was adsorbed by macroporous resin T8 and eluted with 3 times column volume of acetone to obtain eluent E. The eluent was concentrated in vacuum at 40°C and dried to obtain aucubin F; residue D wa...

Embodiment 3

[0051] A method for comprehensively extracting oil, protein, aucubin and eucommia gum from Eucommia ulmoides seeds, the steps are as follows:

[0052] (1) Using Eucommia ulmoides seeds as raw material, after crushing eucommia ulmoides seeds to 20 meshes, a twin-screw extruder is used for extrusion puffing and granulation. The extrusion temperature during granulation is 50°C, and the water content of the granules after extrusion is 6%;

[0053](2) After granulation, use a roller press to roll the billet until the thickness is less than 1.0mm, and then press at 80°C and 3.5MPa to obtain Eucommia seed oil A and cake B;

[0054] (3) The cake B obtained after pressing is first washed with 100% ethanol as an alcohol washing solvent to obtain washing liquid C and residue D;

[0055] (4) Washing liquid C was adsorbed by macroporous resin T8 and then eluted with 3 times column volume of acetone to obtain eluent E. The eluent was concentrated in vacuum at 60°C and dried to obtain aucubi...

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Abstract

The invention discloses a method of comprehensively extracting grease, proteins, aucubin, and eucommia ulmoides gum from eucommia seeds. The method comprises the following steps: taking eucommia seedsas the raw material; grinding eucommia seeds, adopting a double screw extrusion device to carry out extrusion expanding granulation; after granulation, adopting a roller press to carry out rolling, then carrying out squeezing to obtain eucommia oil and meal cakes; washing the meal cakes by alcohol to obtain washing liquid and residues; adsorbing the washing liquid by macroporous resin, then carrying out elution, vacuum concentration, and drying to obtain aucubin; extracting the residues by petroleum ether with a temperature of 60 to 90 DEG C to obtain extracts and residues; cooling the extracts, washing the extracts by acetone to obtain eucommia ulmoides gum; extracting the residues by a NaOH solution, and after extraction, performing acid precipitation, vacuum concentration, and drying to obtain eucommia seed proteins. Through abovementioned steps, four components in eucommia seeds namely grease, proteins, aucubin, and eucommia ulmoides gum are comprehensively extracted; the resources are saved, and the additional value is increased.

Description

technical field [0001] The invention belongs to the fields of food and chemical industry, and in particular relates to a comprehensive extraction method for oil, protein, aucubin and eucommia gum in eucommia seeds. Background technique [0002] Eucommia ulmoides is a single genus of Eucommiaceae. It is a unique and precious economic tree species in my country. Eucommia ulmoides seeds are rich in chemical components, including eucommia seed oil, aucubin, eucommia gum, protein and other components. Extracting its active ingredients is of great significance for its development and utilization. [0003] The solubility characteristics of various components in Eucommia are different, and the current extraction methods mostly use separate components to extract it. [0004] For eucommia seed oil, there are pressing method, solvent extraction method, supercritical extraction method, subcritical extraction method and other methods. Since eucommia seed oil is contained in the cells of...

Claims

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Application Information

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IPC IPC(8): C11B1/06C11B1/04C08J3/00C07H17/04C07H1/08C08L7/00
Inventor 纵伟刘梦培陈淑慧董宇张丽华赵光远王爽爽
Owner ZHENGZHOU UNIVERSITY OF LIGHT INDUSTRY
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