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Method for comprehensively extracting active substances from asparagus scraps based on multi-stage membrane separation

An extraction method, asparagus technology, is applied in the field of designing the extraction of asparagus polysaccharides and rutin, which can solve the problems of limited resources of Sophora japonica and tartary buckwheat, and achieve the effect of resource recovery and reuse, convenient operation and pure products

Inactive Publication Date: 2012-07-04
FUJIAN HUIZE BIOTECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the main raw material for extracting rutin in China is Huai Mi, and it is also extracted from tartary buckwheat and red dates. However, the resources of Huai Mi and Tartary Buckwheat are limited and cannot fully meet the market demand for rutin.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] First, remove the dirt and other debris from the asparagus stems; then drain the water from the asparagus stems and dry them naturally; use a grinder to crush the dried 100 kg asparagus stems to about 15 meshes; use water as the extraction medium to adjust the pH =7-9, the mass ratio of material to liquid is 1:10, the extraction temperature is 90℃, and the extraction time is 2h; the extraction liquid is discharged through the filter, after the liquid is discharged, water is added to the extraction tank for secondary extraction , The heating temperature is 85℃, and the time is 1h; after the liquid is extracted, the third extraction is carried out, and the heating temperature is 80℃, and the time is 1h; each time the extract is cooled by the heat exchanger, centrifuged and precipitated, and then passed through 200 After the multi-stage bag filtration of mesh and 800 mesh, enter the ultrafiltration membrane equipment with a molecular weight of 10,000 (1) Concentrate, rem...

Embodiment 2

[0020] First, remove the dirt and other debris from the asparagus stems; then drain the water from the asparagus stems and dry them naturally; use a pulverizer to crush 150 kg of asparagus stems to about 10 mesh; use water as the extraction medium to adjust the pH =7-9, according to the material-liquid mass ratio of 1:10, the extraction temperature is 80℃, and the extraction time is 2h; the extraction liquid is discharged through the filter, and after the liquid is discharged, water is added to the extraction tank for secondary extraction , The heating temperature is 80℃, and the time is 1h; after the liquid is extracted, the third extraction is carried out, and the heating temperature is 80℃, and the time is 1h; each time the extract is cooled by the heat exchanger, centrifuged and precipitated, and then passed through 200 After the multi-stage bag filtration of mesh and 800 mesh, enter the ultrafiltration membrane equipment with molecular weight of 8000 (1) Concentrate, remov...

Embodiment 3

[0024] First remove the dirt and other debris from the asparagus stems; then drain the water from the asparagus stems and dry them naturally; use a grinder to crush the dried 200 kg asparagus stems to about 20 mesh; use water as the extraction medium to adjust the pH =7-9, according to the material-liquid mass ratio of 1:10, the extraction temperature is 85℃, and the extraction time is 2h; the extraction liquid is discharged through the filter, and after the liquid is discharged, water is added to the extraction tank for secondary extraction , The heating temperature is 85℃, and the time is 1h; after the liquid is extracted, the third extraction is carried out, the heating temperature is 85℃, and the time is 1h; each time the extract is cooled by the heat exchanger, centrifuged and precipitated, and then passed through 200 After the multi-stage bag filtration of mesh and 800 mesh, enter the ultrafiltration membrane equipment with a molecular weight of 12000 (1) Concentrate, rem...

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Abstract

The invention relates to a method for comprehensively extracting active substances from asparagus scraps based on multi-stage membrane separation, which comprises the following steps that: the asparagus scraps are used as a raw material, are extracted with hot water of PH = 7-9 to obtain an extract, and then the extract is subjected to sedimentation centrifugation and 100-800-mesh bag filtering; the extract is subjected to an ultrafiltration membrane with interception molecular weight of 5000-15000Da to obtain a concentrated solution and a filtrate, the concentrated solution is precipitated with 75-95% alcohol to obtain an asparagus polysaccharide precipitate, and the asparagus polysaccharide precipitate is separated and dried to obtain asparagus polysaccharide with the content of 50%; the obtained filtrate is concentrated with a nanofiltration membrane with the molecular weight of 100-500Da to obtain a concentrated solution, the pH value of the concentrated solution is adjusted to 3-4, the concentrated solution is precipitated and dried to obtain rutin; and finally, a dialysate is pumped back to an extraction tank to be used as water for extraction. The residues are crushed to be used for feed. The process adopts an advanced membrane separation technology, improves the preparation efficiency of asparagus polysaccharide and rutin, realizes clean production and no waste water and residue emission, turns waste into wealth and realizes comprehensive utilization of resources. The method has the advantages of advanced process, stable product quality, high purity, clear target and easiness in industrial production.

Description

Technical field [0001] The invention designs an extraction method for asparagus polysaccharide and rutin. Background technique [0002] Asparagus, also known as Asparagus and Asparagus, is a perennial perennial plant belonging to the genus Asparagus in the Liliaceae family. Its tender stems are edible. It is called "ginseng among vegetables" abroad and is one of the top ten famous dishes in the world. Its edible value and medicinal value are very considerable. At present, asparagus produced in China is mainly eaten with tender stems as vegetables or processed into canned asparagus, and 70% to 80% of the stems and leaves of the plant are discarded as waste, which not only wastes resources, but also causes environmental pollution. [0003] Through recent studies, it has been found that asparagus juice and water extracts have strong anti-fatigue, hypolipidemic, anti-aging, anti-mutation, anti-tumor and other pharmacological effects, and can treat high blood pressure, heart disease, t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08B37/00C07H17/07C07H1/08
Inventor 何亚三
Owner FUJIAN HUIZE BIOTECH
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