CN109336997A - A kind of method that low temperature extracts inulin in jerusalem artichoke - Google Patents
A kind of method that low temperature extracts inulin in jerusalem artichoke Download PDFInfo
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- CN109336997A CN109336997A CN201811144283.1A CN201811144283A CN109336997A CN 109336997 A CN109336997 A CN 109336997A CN 201811144283 A CN201811144283 A CN 201811144283A CN 109336997 A CN109336997 A CN 109336997A
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- jerusalem artichoke
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08B—POLYSACCHARIDES; DERIVATIVES THEREOF
- C08B37/00—Preparation of polysaccharides not provided for in groups C08B1/00 - C08B35/00; Derivatives thereof
- C08B37/0006—Homoglycans, i.e. polysaccharides having a main chain consisting of one single sugar, e.g. colominic acid
- C08B37/0051—Homoglycans, i.e. polysaccharides having a main chain consisting of one single sugar, e.g. colominic acid beta-D-Fructofuranans, e.g. beta-2,6-D-fructofuranan, i.e. levan; Derivatives thereof
- C08B37/0054—Inulin, i.e. beta-2,1-D-fructofuranan; Derivatives thereof
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- 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 kind of methods that low temperature extracts inulin in jerusalem artichoke, belong to natural plant composition separation and extraction technology field, after carrying out cleaning removal of impurities, pretreatment to jerusalem artichoke first, jerusalem artichoke is crushed using pulverizer, low temperature deionized water is added simultaneously and extracts inulin therein, isolated jerusalem artichoke extracting solution, successively obtains inulin after flocculation, ceramic membrane filter, desalination bleaching and concentrate drying.The present invention has many advantages, such as that high inulin recovery rate, easy to operate, high production efficiency, at low cost, energy consumption is small, and overall economic efficiency is higher.
Description
Technical field
The present invention relates to natural plant composition separation and extraction technology fields, and in particular to a kind of side for extracting inulin in jerusalem artichoke
Method.
Background technique
Jerusalem artichoke popular name Jerusalem artichoke, Jerusalem artichoke, belong to perennial asteraceae helianthus.Inulin (also referred to as synanthrin) content reaches dry in jerusalem artichoke
The 80% of weight is by D- fructofuranose through linear polysaccharide made of β-(2,1) glucosides key connection, and end is with α-(2,1) glucosides
It is keyed a molecule glucose, the degree of polymerization is generally differed 2~60, average out to 10.Inulin is that nature is naturally occurring water-soluble
Property dietary fiber, there is reducing blood lipid, improve intestinal environment, promote proliferation of probiotics, anti-treat constipation, prevent colon cancer, promoting mine
Material absorbing, the prevention physiological functions such as obesity have been widely used in dairy products, beverage, in food.Inulin is as a kind of pure
Natural functional ingredient is nutritional supplement by a state approval in the world more than 20, and the Ministry of Public Health of China in 2009 criticizes inulin
Standard is new resource food, and the Ministry of Public Health in 2012 announces the raw materials for production for increasing jerusalem artichoke as new resource food inulin.
The method for extracting inulin in jerusalem artichoke mainly has conventional Hot water extraction, adverse current extraction method etc..Hot water extraction master
The problems such as if being extracted repeatedly using 80 DEG C or more of hot water, there are solid-to-liquid ratio height, and energy consumption is big, complicated for operation；Adverse current extracts skill
Art is the improvement to conventional hot water's extraction, same to be extracted using 80 DEG C or more of hot water, but solid-liquid is relatively low, and adverse current extracts skill
Although art reduces part energy consumption, but extract equipment is complicated, and cost is high, and production efficiency is not high.It is widely used in mentioning in recent years
The new extractive techniques such as ultrasonic wave extraction and the microwave extraction technology of plant polyose are taken, although short, high-efficient with the time,
The features such as rate is high, but equally there is also extract equipment complexity, cost is high, high production cost, it is difficult to realize large-scale industry metaplasia
The problem of production.In addition, in existing inulin extracting method, because browning phenomenon often occurs for jerusalem artichoke, cause extracting solution color compared with
It is deep, the burden of subsequent decolorization is increased, or even influence the organoleptic quality of final products inulin.
Therefore, the method for extracting inulin in the jerusalem artichoke that a kind of product quality is high, extraction efficiency is high, low energy consumption is developed, is urgent
Be essential the technical issues of wanting those skilled in the art to solve.
Summary of the invention
By the Development Practice of many years, it has been found that being crushed by the control smashed granule size of jerusalem artichoke in jerusalem artichoke
While be added low temperature deionized water, adjust extracting solution to pH value appropriate, and cross ceramic membrane, be greatly improved chrysanthemum
The quality of powder, and have many advantages, such as that extraction efficiency is high, low energy consumption, large-scale continuous industrial production can be achieved.
Based on above-mentioned discovery, applicant completes the present invention.Specifically, the present invention provides a kind of low temperature to extract in jerusalem artichoke
The method of inulin, comprising the following steps:
1) jerusalem artichoke is cleaned into impurity elimination, the jerusalem artichoke cleaned up is pre-processed with solvent；
2) pretreated jerusalem artichoke is crushed, while low temperature deionized water is added, obtain jerusalem artichoke slurry, separate jerusalem artichoke mentions
Take liquid and jerusalem artichoke slag；Addition, which refers to, while described is added low temperature deionized water when crushing.
3) combined extract after adjusting pH, crosses ceramic membrane, obtains jerusalem artichoke and extracts clear liquid；
4) jerusalem artichoke extracts clear liquid through desalination, decolorizing resin processing, is concentrated and dried, obtains inulin.
A further improvement of the present invention is that the solvent in step 1) is Peracetic acid, chlorine dioxide, ethyl alcohol, peroxidating
One or more of hydrogen.
A further improvement of the present invention is that the smashed partial size of jerusalem artichoke is 10~300 mesh in step 2), jerusalem artichoke slag is available
Screen centrifuge further repeats to extract 1~3 time, and the temperature of deionized water is 5~35 DEG C, and the additional amount of deionized water is jerusalem artichoke weight
1~3 times.
A further improvement of the present invention is that the range that extracting liquid pH value is adjusted in step 3) is 1~7, the hole of ceramic membrane
Diameter is 5~200nm.
A further improvement of the present invention is that the strong-acid ion exchange resin model that desalination uses in step 4)
Any one of D001, AM007, LD206；Decolourize strong-base anion-exchange resin model D900, D941, D296 for using
Any one of, concentration uses nanofiltration membrane, dry using spray drying.
The present invention uses low temperature defibrination extraction process, by pre-processing to jerusalem artichoke, controls the smashed granularity of jerusalem artichoke
Size, is added low temperature deionized water while jerusalem artichoke crushes, and adjusting extracting solution to suitable pH value etc. is handled, achieved as follows
The utility model has the advantages that
1) Extracting temperature is low；
2) extraction time is short；
3) extracting solution color is shallower, alleviates the pressure of subsequent decolorization；
4) extracting solution microbial growth is few in technical process, reduces the loss of inulin；
5) rapidly, recovery rate is up to 98% or more to the inulin dissolution in jerusalem artichoke；
6) compared with Hot water extraction, leaching process is eliminated, shortens the production time, reduces energy consumption and water consumption；
7) finished product purity is high, pure color are in pure white；
8) it is suitble to large-scale continuous industrial production.
Specific embodiment
To make those skilled in the art be best understood from technical solution of the present invention, provide following specific embodiment and
Reference examples.
Supplementary material used in the specific embodiment of the invention is commercially available.
Embodiment 1
By the fresh jerusalem artichoke cleaning removal epidermis silt of 70kg, then the jerusalem artichoke cleaned up is carried out with peracetic acid soln
Pretreatment, is delivered to pulverizer through charging equipment for pretreated jerusalem artichoke, and 25 DEG C of deionization is added thereto when crushing
Water 140kg, it is that 50 mesh obtain jerusalem artichoke slurry that jerusalem artichoke, which is crushed to partial size,.Jerusalem artichoke slurries are delivered to centrifugation sieve separation, obtain jerusalem artichoke
Extracting solution and jerusalem artichoke slag, 25 DEG C of deionized water is added into jerusalem artichoke slag, repeats to extract jerusalem artichoke slag 1 time with screen centrifuge, merge
The extracting solution arrived adjusts extracting solution pH=4.0, and the extracting solution after adjusting pH value is crossed 50nm ceramic membrane, jerusalem artichoke is obtained and extracts clearly
Liquid takes off obtained extraction clear liquid by strong-acid ion exchange resin D001 and strong-base anion-exchange resin D296 desalination
After color, nanofiltration membrane concentration, spray drying obtains inulin.
Embodiment 2-5/ reference examples 1-3
Embodiment 2-5 and the extraction step of reference examples 1-3 are substantially the same manner as Example 1, and difference is only that concrete technology is joined
Several values is different, is detailed in following table.
Reference examples 4
Using jerusalem artichoke in conventional hot water restricted-access media jerusalem artichoke, by the fresh jerusalem artichoke cleaning removal epidermis silt of 70kg, then
By the jerusalem artichoke cleaned up carry out chopping, be added 350kg deionized water, extract 4h under the conditions of 80 DEG C, separate jerusalem artichoke slag and
Extracting solution, jerusalem artichoke slag repeat to extract primary, combined extract, addition Ca (OH) into extracting solution2, adjusting extracting liquid pH value is
10.0, flocculate 1h at 80 DEG C, and extracting solution is cooled to room temperature, adjusts extracting solution pH most 8.0 with phosphoric acid solution, then passes to
CO2Gas makes extracting liquid pH value 7.0, static 30min, and plate-frame filtering removes flocculation sedimentation, obtains jerusalem artichoke and extracts clear liquid, will
After the extraction clear liquid arrived is by strong-acid ion exchange resin D001 and strong-base anion-exchange resin D296 desalination bleaching, receive
Filter membrane concentration, spray drying obtain inulin.
Reference examples 5
Inulin in jerusalem artichoke is extracted referring to the production technology stated in patent document CN104987434A, by the fresh chrysanthemum of 70kg
It after taro cleans silt decortication, is put into crusher and is crushed, the NaHSO of 1 ‰ concentration is added while being crushed3Solution, it is broken
Slurries enter agitator tank, and 30 DEG C of deionized water 210kg is added, and stir 30min.By the slurries being stirred belt filter press pressure
It squeezes, obtains jerusalem artichoke extracting solution and jerusalem artichoke slag, the strainer tensioning air pressure of belt press is 0.8Mpa, and jerusalem artichoke slag is repeated to extract one
Secondary, deionized water temperature is 30 DEG C, and dosage is 2 times of jerusalem artichoke slag amount.It is then combined with the extracting solution obtained twice, is warming up to 80
DEG C, it is added food-grade Ca (OH)2Adjusting extracting liquid pH value is 10.0, after stirring 30min, is passed through CO2Gas makes extracting liquid pH value
7.0, extracting solution temperature is down to 40 DEG C hereinafter, after plate-frame filtering, using centrifuge refined filtration, filtrate is through 300 dalton nanofiltrations
It is 20% that film, which is concentrated into inulin concentration, and concentrate is through strong-base anion-exchange resin D296, strong-acid ion exchange resin
After D001 and weak-base anion-exchange resin D301 desalination, into dual-effect concentrator, being concentrated into inulin concentration is 50% or so,
Spray drying obtains inulin.
The inulin of Example 1-5, reference examples 1-5 preparation calculates inulin and extracts yield, product purity measured, in product
Inulin content is that total sugar content subtracts content of reducing sugar, and total sugar content is used using phenol sulfuric acid colorimetric method for determining, content of reducing sugar
DNS colorimetric method for determining, as a result as shown in the table:
| Inulin extracts yield | Inulin purity | |
| Embodiment 1 | 98.6% | 95% |
| Embodiment 2 | 98.2% | 96% |
| Embodiment 3 | 98.0% | 94% |
| Embodiment 4 | 98.1% | 96% |
| Embodiment 5 | 98.8% | 97% |
| Reference examples 1 | 85.3% | 87% |
| Reference examples 2 | 90.4% | 86% |
| Reference examples 3 | 80.2% | 90% |
| Reference examples 4 | 78.2% | 87% |
| Reference examples 5 | 94.6% | 90% |
As it can be seen that extraction yield, the purity of inulin (embodiment 1-5) prepared by the present invention are significantly better than that present invention protection model
Enclose outer technical solution (reference examples 1-3).In addition, compared with conventional hot water's extraction (reference examples 4), inulin prepared by the present invention
Leaching process is eliminated, highly shortened extraction time, and reduce energy consumption, the extraction yield and purity of final inulin are also bright
The aobvious product standby better than traditional law system.Compared to other prior arts, such as patent CN104987434A (reference examples 5), the present invention
Disclosed inulin production method will crush, extraction process is combined into one, and further shorten extraction time, while used in extraction
Water temperature is lower, and using adjusting pH, crossing the impurity in the method removal extracting solution of ceramic membrane, avoids reference examples 5 using lime
First heat up the process to cool down afterwards required for the removal of impurities of filling CO 2 method, simplifies process, and the yield of final inulin with
Purity is better than reference examples 5.
Claims (9)
1. a kind of method that low temperature extracts inulin in jerusalem artichoke, comprising the following steps:
1) jerusalem artichoke is cleaned into impurity elimination, the jerusalem artichoke cleaned up is pre-processed with solvent；
2) pretreated jerusalem artichoke is crushed, while low temperature deionized water is added, obtained jerusalem artichoke slurry, separate to obtain jerusalem artichoke extracting solution
With jerusalem artichoke slag；
3) combined extract after adjusting pH, crosses ceramic membrane, obtains jerusalem artichoke and extracts clear liquid；
4) jerusalem artichoke extracts clear liquid through desalination, decolorizing resin processing, is concentrated and dried, obtains inulin.
2. the method that a kind of low temperature according to claim 1 extracts inulin in jerusalem artichoke, wherein the solvent in step 1) was
One or more of fluoroacetic acid, chlorine dioxide, ethyl alcohol, hydrogen peroxide.
3. the method that a kind of low temperature according to claim 1 extracts inulin in jerusalem artichoke, after wherein jerusalem artichoke crushes in step 2)
Partial size be 10~300 mesh.
4. the method that a kind of low temperature according to claim 1 extracts inulin in jerusalem artichoke, wherein in step 2) jerusalem artichoke slag with from
Heart sieve further repeats to extract 1~3 time.
5. the method that a kind of low temperature according to claim 1 extracts inulin in jerusalem artichoke, wherein deionized water in step 2)
Temperature is 5~35 DEG C.
6. the method that a kind of low temperature according to claim 1 extracts inulin in jerusalem artichoke, wherein deionized water in step 2)
Additional amount is 1~3 times of jerusalem artichoke weight.
7. the method that a kind of low temperature according to claim 1 extracts inulin in jerusalem artichoke, wherein adjusts extracting solution in step 3)
The range of pH value is 1~7, and the aperture of ceramic membrane is 5~200nm.
8. the method that a kind of low temperature according to claim 1 extracts inulin in jerusalem artichoke, wherein desalination is used in step 4)
Any one of strong-acid ion exchange resin model D001, AM007, LD206；The strong alkalinity anion exchange that decoloration uses
Resin model is any one of D900, D941, D296.
9. the method that a kind of low temperature according to claim 1 extracts inulin in jerusalem artichoke, wherein concentration use is received in step 4)
Filter membrane, it is dry using spray drying.
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| CN201811144283.1A CN109336997B (en) | 2018-09-28 | 2018-09-28 | Method for extracting inulin from jerusalem artichoke at low temperature |
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| CN201811144283.1A CN109336997B (en) | 2018-09-28 | 2018-09-28 | Method for extracting inulin from jerusalem artichoke at low temperature |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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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| CN101570580A (en) * | 2009-05-14 | 2009-11-04 | 同济大学 | Clean production process for extracting synanthrin from Jerusalem artichoke |
| WO2012141617A1 (en) * | 2011-04-13 | 2012-10-18 | Artemyev Vladimir Dmitrievich | Method for producing inulin and other fructan-containing products from jerusalem artichoke |
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2018
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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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