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Method of extracting high-purity inulin from jerusalem artichoke and chicory

A technology of high-purity inulin and chicory, which is applied in the field of extracting high-purity inulin, can solve the problems of poor purity and low impurity removal rate, and achieve the effects of improving purity, stable product performance, and stable quality

Active Publication Date: 2009-09-02
丰宁平安高科实业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The present invention is in order to solve the inappropriateness of the ion exchange resin model selected during decolorization, operating parameters and nanofiltration membrane pore size and molecular weight selected during impurity removal in the existing technology for extracting inulin from Jerusalem artichoke and chicory, resulting in impurity removal rate Small size, final product yield, poor purity, etc., provide a method for extracting high-purity inulin from Jerusalem artichoke and chicory

Method used

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Examples

Experimental program
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Effect test

Embodiment 1

[0010] A method for extracting high-purity inulin from artichoke and chicory, comprising the following steps: (1) pretreatment of raw materials of artichoke or chicory rhizome, cleaning and removing impurities in the artichoke or chicory rhizome; (2) slicing the artichoke or chicory rhizome , heating and extracting with pure water at a temperature of 60°C to obtain a sugar solution extracted from Jerusalem artichoke or chicory; at this time, the sugar content of the extracted sugar solution is 12-13Bx, and the sugar content of the Jerusalem artichoke residue is ≤0.5Bx. Control, the heated pure water is sent in a reverse flow (upper feed, lower feed); (3) The obtained extracted sugar solution is drained at 60°C and passed through a fully enclosed vertical column equipped with water purification activated carbon , for decolorization, dust removal and odor removal; the extraction of sugar liquid goes in and out at 4-6m per hour 3 After the flow rate flows through the vertical col...

Embodiment 2

[0012] A method for extracting high-purity inulin from artichoke and chicory, comprising the following steps: (1) pretreatment of raw materials of artichoke or chicory rhizome, cleaning and removing impurities in the artichoke or chicory rhizome; (2) slicing the artichoke or chicory rhizome , heating and extracting with pure water at a temperature of 90°C to obtain the sugar solution extracted from Jerusalem artichoke or chicory; at this time, the sugar content of the extracted sugar solution is 12-13Bx, and the sugar content of the Jerusalem artichoke residue is ≤0.5Bx. Control, the heated pure water is sent in reverse flow (upper feed, lower feed); (3) The obtained extracted sugar solution is drained under the condition of 40°C and passed through a fully enclosed vertical tank equipped with water purification activated carbon column, for decolorization, dust removal and odor removal; the extraction of sugar liquid goes in and out at a rate of 4-6m per hour 3 After the flow r...

Embodiment 3

[0014] A method for extracting high-purity inulin from artichoke and chicory, comprising the following steps: (1) pretreatment of raw materials of artichoke or chicory rhizome, cleaning and removing impurities in the artichoke or chicory rhizome; (2) slicing the artichoke or chicory rhizome , heating and extracting with pure water at a temperature of 75°C to obtain the sugar solution extracted from Jerusalem artichoke or chicory; at this time, the sugar content of the extracted sugar solution is 12-13Bx, and the sugar content of the Jerusalem artichoke residue is ≤0.5Bx. Control, the heated pure water is sent in a reverse flow (upper feed, lower feed); (3) The obtained extracted sugar solution is drained at 50°C and passed through a fully enclosed vertical column equipped with water purification activated carbon , for decolorization, dust removal and odor removal; the extraction of sugar liquid goes in and out at 4-6m per hour 3 After the flow rate flows through the vertical c...

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Abstract

The invention relates to the field of jerusalem artichoke and chicory processing, in particular to a method of extracting high-purity inulin from jerusalem artichoke and chicory, solving the problems of low efficiency in impurity removal, decoloration and dedusting, low product yield, poor purity, and the like existed in the prior process due to the unsuitable selection of ion exchange resin models and operation parameters in the decoloration, nanofiltration membrane models selected in the impurity removal, and the like. The method comprises the following steps: pre-treating raw materials; heating and leaching the raw materials in pure water; decoloring and dedusting activated carbon in clean water; jointly decoloring cation exchange resin JK008 and anion exchange resin WD-6 and removing impurities; dialyzing, purifying and condensing by a nanofiltration membrane with the retention molecular weight of 500 and the model of SeP-N500-8040-25, sterilizing, condensing, spraying and drying. The nanofiltration membrane ensures the recovery rate of the inulin to be more than 90 percent while removing more than 95 percent of monosaccharide or disaccharide and more than 99.5 percent of dust so as to improve the purity of the inulin, and the cation exchange resin and the anion exchange resin which are preferably selected confirm suitable process parameters, carry out secondary decolorization, remove trace inorganic salt and nonsugar matter and thoroughly deodorize the odor of colored matter.

Description

technical field [0001] The invention relates to the field of processing and utilization of artichoke and chicory, in particular to a method for extracting high-purity inulin from artichoke and chicory. Background technique [0002] Inulin (also known as inulin) is a special kind of natural fructan carbohydrate contained in plants. It is connected by β-2,1 glycosidic bonds and has a linear structure. The average length of the molecular chain is about 30 to 35 fructose units. , up to 60 fructose units, the reducing end is connected to a glucose residue, and the molecular weight is about 3000-5000 carbon atom units. Inulin is one of the most soluble dietary fibers found so far. It has the functions of controlling blood lipids, lowering blood sugar, promoting mineral absorption, increasing bifidobacteria in the intestinal tract, preventing constipation and treating obesity. Due to its unique physical and chemical properties and physiological functions, inulin has wide applicati...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A23L1/09A23L1/28A23L1/29A23L1/308A23L1/212A23L33/105A23L33/125A23L33/21
Inventor 张千厚杨再忠贾新民
Owner 丰宁平安高科实业有限公司
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