CN110981994A - Method for extracting high-purity inulin - Google Patents
Method for extracting high-purity inulin Download PDFInfo
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- CN110981994A CN110981994A CN201911353235.8A CN201911353235A CN110981994A CN 110981994 A CN110981994 A CN 110981994A CN 201911353235 A CN201911353235 A CN 201911353235A CN 110981994 A CN110981994 A CN 110981994A
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- C08B—POLYSACCHARIDES; DERIVATIVES THEREOF
- C08B37/00—Preparation of polysaccharides not provided for in groups C08B1/00 - C08B35/00; Derivatives thereof
- C08B37/0003—General processes for their isolation or fractionation, e.g. purification or extraction from biomass
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Abstract
The invention discloses a method for extracting high-purity inulin, which comprises the following steps: pre-selecting inulin extraction raw materials, processing to inactivate enzyme, soaking the materials to prepare dry powder, stirring and filtering the materials, and performing ion exchange to remove impurities to prepare a finished product. The invention has the beneficial effects that: adding an ethanol solution to soak and sieve to obtain powder and centrifugally extract supernatant in the inulin extraction process, soaking raw materials by utilizing the ethanol solution to fully adjust the cost of internal inulin, enabling subsequent drying, crushing and sieving to obtain powder to obtain dry powder raw materials with higher concentration, thereby enabling subsequent extraction operation to obtain better inulin, carrying out centrifugal separation on filtered extracting solution, enabling impurities in the extracting solution to fall down and precipitate through centrifugal operation, thereby enabling the supernatant to be rich in inulin components with higher concentration, then extracting the supernatant to enter an ion exchange resin column for reduced pressure concentration, and finally carrying out spray drying to obtain high-purity inulin.
Description
Technical Field
The invention relates to the field of plant extraction, and particularly relates to a method for extracting high-purity inulin.
Background
Inulin is a reserve polysaccharide in plants and is mainly derived from plants. For example, the inulin is rich in the roots of jerusalem artichoke, chicory tubers and thistle, wherein the inulin content of the jerusalem artichoke is the highest, the inulin is an ideal functional food ingredient and is a good raw material for producing products such as fructo-oligosaccharide, polyfructose, high fructose syrup, crystalline fructose and the like, the traditional process is mainly used for extracting the inulin by a hot-dipping juice extraction method, pigment and mineral substances are removed by ion exchange resin, preconcentration is carried out, and finally the product is obtained by spray drying, but the hot-dipping juice extraction method has low efficiency, and the extracted inulin has low purity and low polymerization degree, so that a high-purity inulin material cannot be obtained.
Disclosure of Invention
The invention mainly aims to provide a high-purity inulin extraction method, which can effectively solve the problems that the mixing of raw materials is not balanced enough in the background technology and heating can not be carried out during reaction.
In order to achieve the purpose, the invention adopts the technical scheme that:
a method for extracting high-purity inulin comprises the following steps:
pre-selecting raw materials for inulin extraction, processing enzyme deactivation, soaking the materials to prepare dry powder, stirring and filtering the materials, performing ion exchange to remove impurities and preparing a finished product, wherein the pre-selected output end of the raw materials for inulin extraction is connected with the input end of the processing enzyme deactivation, the output end of the processing enzyme deactivation is connected with the input end of the dry powder prepared by soaking the materials, the output end of the dry powder prepared by soaking the materials is connected with the input end of the stirring and filtering of the materials, the output end of the stirring and filtering of the materials is connected with the input end of the ion exchange to remove impurities, and the output end of the ion exchange to remove;
preferably, the pre-selection of the inulin extraction raw materials comprises the steps of raw material quality control and quality weighing, and the pre-selection of the inulin extraction raw materials adopts fresh jerusalem artichoke.
Preferably, the processing enzyme deactivation comprises raw material peeling and slicing and hot water blanching enzyme deactivation, wherein the raw material peeling and slicing is used for cleaning, peeling and slicing fresh jerusalem artichoke to remove attachments on the surface of the raw material to obtain a clean inulin raw material, and the hot water blanching enzyme deactivation hot water temperature is 80 degrees, so that the enzyme in the jerusalem artichoke is inactivated, and the loss of inulin components in the jerusalem artichoke is reduced.
Preferably, the step of soaking the material to prepare the dry powder comprises the steps of soaking the material in an ethanol solution, drying and crushing the material, and sieving the material to obtain the powder, wherein the ethanol solution containing vitamin E is adopted as the ethanol solution for soaking, the soaking time is 60S, the content of the vitamin E is 20-30 g/L, the dried and crushed material is obtained by taking out the soaked jerusalem artichoke raw material, placing the jerusalem artichoke raw material for drying and crushing the jerusalem artichoke raw material, and the sieved powder is subjected to vibration screening by a filter screen to obtain the.
Preferably, the material stirring and filtering comprises water injection stirring, heating of a stirring bin and filtering to obtain an extracting solution, wherein the water injection stirring is to put dry powder materials into a stirrer and inject a certain amount of water for stirring, the stirring time is 1-2 hours, the heating of the stirring bin heats the inside of the stirring bin through a heating plate, the water temperature is controlled to be above 90 degrees, the filtering to obtain the extracting solution is to filter and purify the stirred solution by using a filtering membrane, the filtering temperature is 30-35 degrees, and the filtering pore diameter is 0.1-1 mu m, so that the purified extracting solution is obtained.
Preferably, the ion exchange impurity removal comprises centrifugal separation, the supernatant enters an ion exchange resin column, and is subjected to reduced pressure concentration to reach a proper specific gravity, the centrifugal separation is performed by putting the extracting solution into a centrifuge for centrifugal separation, so that the supernatant after re-purification is obtained, the supernatant enters the ion exchange resin column and is subjected to reduced pressure concentration to reach a proper specific gravity synchronously, the supernatant is put into the ion exchange resin column for removing pigments and minerals, and the supernatant is subjected to reduced pressure concentration at the same time, so that the specific gravity reaches 0.8-1 g/ml, and the high-concentration inulin extracting solution is obtained.
Preferably, the preparation of the finished product comprises spray drying and filling sealing treatment, wherein the spray drying temperature is 80-120 degrees, the filling sealing treatment adopts vacuum filling, and the specification is 1 kg/barrel.
Compared with the prior art, the invention has the following beneficial effects: adding an ethanol solution to soak and sieve to obtain powder and centrifugally extract supernatant in the inulin extraction process, soaking raw materials by utilizing the ethanol solution to fully adjust the cost of internal inulin, enabling subsequent drying, crushing and sieving to obtain powder to obtain dry powder raw materials with higher concentration, thereby enabling subsequent extraction operation to obtain better inulin, carrying out centrifugal separation on filtered extracting solution, enabling impurities in the extracting solution to fall down and precipitate through centrifugal operation, thereby enabling the supernatant to be rich in inulin components with higher concentration, then extracting the supernatant to enter an ion exchange resin column for reduced pressure concentration, and finally carrying out spray drying to obtain high-purity inulin.
Drawings
FIG. 1 is a schematic diagram showing the system structure of a method for extracting high-purity inulin according to the present invention;
FIG. 2 is a schematic view showing a preselected structure of inulin extraction raw materials in a high-purity inulin extraction method of the present invention;
FIG. 3 is a schematic diagram showing the structure of processing enzyme deactivation in a method for extracting high-purity inulin according to the present invention;
FIG. 4 is a schematic diagram showing the structure of the method for extracting high-purity inulin by soaking materials to prepare dry powder;
FIG. 5 is a schematic view showing a material stirring and filtering structure of a high purity inulin extraction method of the present invention;
FIG. 6 is a schematic view of an ion exchange impurity removal structure of a high purity inulin extraction method of the present invention;
FIG. 7 is a schematic diagram of the structure of the final product obtained by the method for extracting high-purity inulin of the present invention.
Detailed Description
In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.
Example 1
A method for extracting high-purity inulin as shown in FIG. 1 comprises: the method comprises the following steps of extracting raw materials from inulin for preselection, processing enzyme deactivation, soaking the materials to prepare dry powder, stirring and filtering the materials, performing ion exchange to remove impurities and prepare a finished product, wherein the output end of extracting the raw materials from the inulin for preselection is connected with the input end of processing enzyme deactivation, the output end of processing enzyme deactivation is connected with the input end of soaking the materials to prepare the dry powder, the output end of soaking the materials to prepare the dry powder is connected with the input end of stirring and filtering the materials, the output end of stirring and filtering the materials is connected with the input end of removing impurities through ion exchange, and the output end of removing impurities.
Example 2
Further, as shown in FIG. 2, the inulin extraction raw material preselection includes raw material quality gate and quality weighing, and the inulin extraction raw material preselection employs fresh Jerusalem artichoke.
Further, as shown in fig. 3, the processing enzyme deactivation includes peeling and slicing raw materials, and blanching and enzyme deactivation with hot water, wherein the peeling and slicing raw materials are used for cleaning, peeling and slicing fresh jerusalem artichoke to remove attachments on the surface of the raw materials, so that a clean inulin raw material is obtained, and the blanching and enzyme deactivation with hot water has the temperature of 80 degrees, so that the enzyme in the jerusalem artichoke is inactivated, and the loss of inulin components in the jerusalem artichoke is reduced.
Further, as shown in fig. 4, the step of soaking the material to prepare the dry powder comprises the steps of injecting ethanol solution for soaking, drying and crushing, and sieving to obtain powder, wherein the ethanol solution for injecting adopts ethanol solution containing vitamin E, the soaking time is 60S, the content of the vitamin E is 20-30 g/L, the dried and crushed jerusalem artichoke raw material after soaking is taken out, the jerusalem artichoke raw material is placed for drying and then crushed, and the powder obtained by sieving is subjected to vibration screening by a filter screen to obtain the dry powder material.
Further, as shown in fig. 5, the material stirring and filtering includes injecting water and stirring, heating a stirring bin, and filtering to obtain an extracting solution, the injecting water and stirring includes placing the dry powder material into a stirrer, and injecting a certain amount of water to stir, the stirring time is 1-2 hours, the heating in the stirring bin heats the inside of the stirring bin through a heating plate, the water temperature is controlled to be above 90 °, the filtering obtains the extracting solution, and the filtering and purifying are performed on the stirred solution by using a filtering membrane, the filtering temperature is 30-35 °, and the filtering pore size is 0.1-1 μm, so that the purified extracting solution is obtained.
Example 3
Further, as shown in fig. 6, the ion exchange impurity removal includes centrifugal separation, the supernatant enters an ion exchange resin column, and is subjected to reduced pressure concentration to a proper specific gravity, the centrifugal separation is performed by putting the extracting solution into a centrifuge for centrifugal separation, so that a supernatant after re-purification is obtained, the supernatant enters the ion exchange resin column and is subjected to reduced pressure concentration to a proper specific gravity simultaneously, the supernatant is put into the ion exchange resin column to remove pigments and minerals, and the supernatant is subjected to reduced pressure concentration at the same time, so that the specific gravity reaches 0.8-1 g/ml, and thus the high-concentration inulin extracting solution is obtained.
Further, as shown in fig. 7, the preparation of the finished product comprises spray drying and filling and sealing treatment, wherein the spray drying temperature is 80-120 degrees, the filling and sealing treatment adopts vacuum filling, and the specification is 1 kg/barrel.
In the use of the high-purity inulin extraction method, firstly, raw materials are preselected, fresh jerusalem artichoke is selected as an inulin raw material, the raw material is weighed and recorded, then, the raw material is cleaned, peeled and sliced, then, the raw material is soaked in hot water for blanching and enzyme deactivation, the loss of inulin components in the raw material is reduced, the raw material is soaked in an ethanol solution for about 60 seconds, the inulin components are adjusted, then, the soaked jerusalem artichoke raw material is placed for drying and crushing, and then, dry powder materials are obtained through screen vibration screening; putting the dry powder material into a stirrer, injecting a proper amount of water, stirring, heating water in a stirring bin at a temperature to fully and effectively separate out inulin components, filtering the stirred solution to obtain a purified extracting solution, putting the extracting solution into a centrifugal machine, performing centrifugal operation, precipitating impurities in the extracting solution again to obtain a supernatant with higher purity, putting the supernatant into an ion exchange resin column, removing chromaticity and mineral substances in the supernatant, and finally performing spray drying to obtain the high-purity inulin.
It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications therefrom are within the scope of the invention.
Claims (7)
1. A method for extracting high-purity inulin is characterized by comprising the following steps: the method comprises the following steps:
the method comprises the following steps of extracting raw materials from inulin for preselection, processing enzyme deactivation, soaking the materials to prepare dry powder, stirring and filtering the materials, performing ion exchange to remove impurities and prepare a finished product, wherein the output end of extracting the raw materials from the inulin for preselection is connected with the input end of processing enzyme deactivation, the output end of processing enzyme deactivation is connected with the input end of soaking the materials to prepare the dry powder, the output end of soaking the materials to prepare the dry powder is connected with the input end of stirring and filtering the materials, the output end of stirring and filtering the materials is connected with the input end of removing impurities through ion exchange, and the output end of removing impurities.
2. The method for extracting high-purity inulin as claimed in claim 1, wherein: the pre-selection of the inulin extraction raw materials comprises the steps of quality control and quality weighing of the raw materials, and the pre-selection of the inulin extraction raw materials adopts fresh jerusalem artichoke.
3. The method for extracting high-purity inulin as claimed in claim 1, wherein: the processing enzyme deactivation comprises raw material peeling and slicing and hot water blanching enzyme deactivation, wherein the raw material peeling and slicing are used for cleaning, peeling and slicing fresh jerusalem artichoke to remove attachments on the surface of the raw material to obtain a clean inulin raw material, and the hot water blanching enzyme deactivation hot water temperature is 80 degrees, so that the enzyme in the jerusalem artichoke is inactivated, and the loss of inulin components in the jerusalem artichoke is reduced.
4. The method for extracting high-purity inulin as claimed in claim 1, wherein: the preparation of the dry powder by soaking the material comprises the steps of injecting ethanol solution for soaking, drying and crushing, and sieving to obtain powder, wherein the ethanol solution for injection adopts ethanol solution containing vitamin E, the soaking time is 60S, the content of the vitamin E is 20-30 g/L, the dried and crushed jerusalem artichoke raw material after soaking is taken out, the jerusalem artichoke raw material is placed for drying and then is crushed, and the powder is sieved and sieved to obtain the dry powder material through vibration screening of a filter screen.
5. The method for extracting high-purity inulin as claimed in claim 1, wherein: the material stirring and filtering comprises water injection stirring, heating of a stirring bin and filtering to obtain an extracting solution, wherein dry powder materials are placed into a stirrer through the water injection stirring, a certain amount of water is injected into the stirrer for stirring, the stirring time is 1-2 hours, the stirring bin is heated through a heating plate to heat the inside of the stirring bin, the water temperature is controlled to be above 90 degrees, the extracting solution obtained through filtering is obtained through filtering and purifying the stirred solution through a filtering membrane, the filtering temperature is 30-35 degrees, and the filtering pore diameter is 0.1-1 mu m, so that the purified extracting solution is obtained.
6. The method for extracting high-purity inulin as claimed in claim 1, wherein: the ion exchange impurity removal comprises centrifugal separation, enabling supernatant to enter an ion exchange resin column, and concentrating under reduced pressure to reach proper specific gravity, enabling the extracting solution to be placed into a centrifugal machine for centrifugal separation, so that purified supernatant is obtained, enabling the supernatant to enter the ion exchange resin column, and concentrating under reduced pressure to reach proper specific gravity synchronously, enabling the supernatant to be placed into the ion exchange resin column to remove pigments and mineral substances, and meanwhile, enabling the specific gravity to reach 0.8-1 g/ml through concentrating under reduced pressure, so that the high-concentration inulin extracting solution is obtained.
7. The method for extracting high-purity inulin as claimed in claim 1, wherein: the preparation of the finished product comprises spray drying and filling sealing treatment, wherein the spray drying temperature is 80-120 degrees, the filling sealing treatment adopts vacuum filling, and the specification is 1 kg/barrel.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201911353235.8A CN110981994A (en) | 2019-12-24 | 2019-12-24 | Method for extracting high-purity inulin |
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| CN201911353235.8A CN110981994A (en) | 2019-12-24 | 2019-12-24 | Method for extracting high-purity inulin |
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Citations (7)
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|---|---|---|---|---|
| CN1919855A (en) * | 2006-09-21 | 2007-02-28 | 贵州大学 | Method of extracting inulin assisted with microwave technique |
| CN103923231A (en) * | 2014-04-18 | 2014-07-16 | 中国科学院烟台海岸带研究所 | Method for continuously preparing inulin and pectin by using jerusalem artichoke and/or endives |
| CN105646734A (en) * | 2016-01-19 | 2016-06-08 | 新疆正生农业资源开发研究院（有限公司） | Production method for inulin |
| RU2619758C1 (en) * | 2015-12-02 | 2017-05-18 | Федеральное государственное бюджетное образовательное учреждение высшего образования "Горский государственный аграрный университет" | Method for obtaining inulin from wild plants mixture |
| CN107417811A (en) * | 2017-08-16 | 2017-12-01 | 黑龙江军门现代农业发展有限公司 | A kind of inulin method of purification |
| CN108456265A (en) * | 2017-08-16 | 2018-08-28 | 黑龙江军门现代农业发展有限公司 | High-purity inulin extracting method |
| CN110423293A (en) * | 2019-03-13 | 2019-11-08 | 陕西森弗天然制品有限公司 | It is a kind of using jerusalem artichoke as the inulin preparation method of raw material |
-
2019
- 2019-12-24 CN CN201911353235.8A patent/CN110981994A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1919855A (en) * | 2006-09-21 | 2007-02-28 | 贵州大学 | Method of extracting inulin assisted with microwave technique |
| CN103923231A (en) * | 2014-04-18 | 2014-07-16 | 中国科学院烟台海岸带研究所 | Method for continuously preparing inulin and pectin by using jerusalem artichoke and/or endives |
| RU2619758C1 (en) * | 2015-12-02 | 2017-05-18 | Федеральное государственное бюджетное образовательное учреждение высшего образования "Горский государственный аграрный университет" | Method for obtaining inulin from wild plants mixture |
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| CN108456265A (en) * | 2017-08-16 | 2018-08-28 | 黑龙江军门现代农业发展有限公司 | High-purity inulin extracting method |
| CN110423293A (en) * | 2019-03-13 | 2019-11-08 | 陕西森弗天然制品有限公司 | It is a kind of using jerusalem artichoke as the inulin preparation method of raw material |
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