CN101205561A - Recovery technique of glucose crystallization mother liquor - Google Patents
Recovery technique of glucose crystallization mother liquor Download PDFInfo
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- CN101205561A CN101205561A CNA2006101476114A CN200610147611A CN101205561A CN 101205561 A CN101205561 A CN 101205561A CN A2006101476114 A CNA2006101476114 A CN A2006101476114A CN 200610147611 A CN200610147611 A CN 200610147611A CN 101205561 A CN101205561 A CN 101205561A
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- mother liquor
- crystallization mother
- recovery technique
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Abstract
The invention provides a recovery technology for glucose crystal mother liquor, which can recover the glucose in the glucose crystal mother liquor efficiently by adopting an enzymatic binding nano-filtration separation technology; meanwhile receives a high value oligosaccharide product. Syrup which is refined with nano-filtration technology needs not to be decolored once more, the obtained refined syrup has high concentration of glucose, and energy consumption required by concentration can be saved; impurities in the syrup are completely removed, the service life of isomerase can be maximally increased; macromolecular impurities which affect the crystal are maximally removed. The purity of obtained glucose reaches up to 94-99%, the syrup can be merged with fresh decolored sacchariferous liquor, and is crystallized via conventional treatment; or, the syrup can be isomerizated after being directly concentrated to prepare high fructose syrup or produce other glucose ramifications.
Description
Technical field
The present invention relates to a kind of production technique of glucose, particularly a kind of recovery technique of glucose crystallization mother liquor.
Background technology
The crystalline dextrose overwhelming majority adopts the double-enzyme method preparation at present, promptly is that raw material obtains dextrose syrup through liquefaction, Mashing process with starch; Again with dextrose syrup through decolouring, ion-exchange, concentrate, crystallization obtains crystalline dextrose.The DE value " reducing sugar content in the saccharification liquid (with glucose meter) accounts for the percentage of dry-matter " of the glucose syrup of the conventional liquefaction of process, saccharification is generally 94%-96%, glucose sugar content is many between 93%-95%, and the unconverted disaccharides of 5%-7%, trisaccharide, polysaccharide etc. are still arranged in the saccharification liquid.Through after the crystallization, crystalline dextrose obtains product through centrifugation after the drying.And higher owing to impurity sugar content in the crystalline mother solution, its DS value (total content of dry-matter in the solution) is 50%, and DX value (glucose content in the saccharification liquid accounts for the percentage of dry-matter) is 70-90%, can only sell at a low price with syrupy form usually.Its price even be lower than the raw starch price.Usually the mother liquor quantity discharged accounts for 15% of total reducing sugar amount.How to make full use of this mother liquor, improve the mother liquor added value, become the difficult problem that each crystalline dextrose manufacturer needs to be resolved hurrily.
Summary of the invention
Purpose of the present invention is further to reclaim the glucose in the glucose crystallization mother liquor and a kind of recovery technique of glucose crystallization mother liquor is provided, and obtains a kind of valuable byproduct simultaneously.
Technical scheme of the present invention is: a kind of recovery technique of glucose crystallization mother liquor may further comprise the steps:
It is that 70%-90%, solid content are the glucose crystallization mother liquor of 20%-80% that the DE value is extracted in a, metering, the ratio adding saccharifying enzyme or the compounded saccharifying enzyme that add 10-400 μ g enzyme according to every gram solid substance react, and obtaining the DE value is the Glucose Liquid of 85%-94%;
B, will step a gained Glucose Liquid the dilution back adopt the nanofiltration membrane separation technology to separate, collect and see through liquid and obtain the glucose syrup that glucose purity is 90%-100%, concentrated solution is that the isomaltose purity of giving money as a gift is the syrup of 20%-70%;
C, with step b gained isomaltose give money as a gift purity be the syrup of 20-70% through ion-exchange, decolouring, concentrate, obtain the syrup that total solids content is 50-80%.
Compounded saccharifying enzyme described in the step a is mixed with the debranching factor of 20%-50% by the saccharifying enzyme of 50%-80% and forms.
Reaction conditions described in the step a is: pH4.0-5.0, temperature 50-70 ℃, reaction times 2-40 hour.
Nanofiltration membrane described in the step b is the polymeric membrane of rolled structure, and its rejection to sal epsom is 90-98%.
The operational condition of the nanofiltration membrane separation technology described in the step b is: charging solid concentration 10-50%, temperature 15-80 ℃, pressure 7-50kg/cm
2
Recovery technique of glucose crystallization mother liquor of the present invention has been owing to adopted enzyme process in conjunction with the nanofiltration separation technology, and the glucose in can high efficiency recovery glucose crystallization mother liquor obtains the oligosaccharide product of high value simultaneously.Need not to decolour through nanofiltration purified syrup, the affination syrup glucose concn height of acquisition can be saved and concentrate required energy consumption again; Impurity in the syrup is thoroughly removed, and has increased the work-ing life of allomerase to greatest extent; Having removed to greatest extent influences crystalline macromole impurity.
Adopt the syrup of the available glucose purity of recovery technique of glucose crystallization mother liquor of the present invention up to 94-99%, this syrup can merge with the fresh saccharification liquid through decolouring, and carries out crystallization through conventional processing; Or carry out isomerization after directly concentrating and be used for preparing high fructose syrup or produce other glucose-derivative.
Embodiment
Embodiment 1
Getting the DE value is 82%, and solid content is 50% glucose crystallization mother liquor 100L, inserts in the jar of band stirring, the ratio that adds 30 μ g enzymes according to every gram solid substance adds saccharifying enzyme, at pH4.5,55 ℃ of temperature and constantly stir reaction down 8 hours obtain the DE value and are 93% Glucose Liquid.Is 30% with this liquid glucose thin up to solid content, insert in the nanofiltration system, and be 30kg/cm at pressure
2, temperature is to operate under 30 ℃ the condition, collects and sees through liquid, obtains glucose purity and be 99% dextrose syrup.Its concentrated solution is to contain glucose to give money as a gift that purity is 50%, to contain the isomaltose purity of giving money as a gift be 34% syrup, with this syrup through being 70% syrup from handing over, decolouring, concentrate, obtaining solid content.
Embodiment 2
Getting the DE value is 75%, solid content is 40% glucose crystallization mother liquor 100L, insert in the jar of band stirring, the ratio that adds 40 μ g enzymes according to every gram solid substance adds compounded saccharifying enzyme (with debranching factor mixed be made up of the saccharifying enzyme of identical weight), at pH5.0,60 ℃ of temperature and constantly stir reaction down 15 hours obtain the DE value and are 90% Glucose Liquid.Is 20% with this liquid glucose thin up to solid content, insert in the nanofiltration system, and be 40kg/cm at pressure
2, temperature is to operate under 20 ℃ the condition, collects and sees through liquid, obtains glucose purity and be 98% dextrose syrup.Its concentrated solution is to contain glucose to give money as a gift that purity is 48%, to contain the isomaltose purity of giving money as a gift be 38% syrup, with this syrup through being 70% syrup from handing over, decolouring, concentrate, obtaining solid content.
Embodiment 3
Getting the DE value is 85%, solid content is 60% glucose crystallization mother liquor 100L, insert in the jar of band stirring, the ratio that adds 50 μ g enzymes according to every gram solid substance adds compounded saccharifying enzyme (with debranching factor 30 weight parts mixed be made up of saccharifying enzyme 70 weight parts), at pH4.8,65 ℃ of temperature and constantly stir reaction down 20 hours obtain the DE value and are 94% Glucose Liquid.Is 40% with this liquid glucose thin up to solid content, insert in the nanofiltration system, and be 40kg/cm at pressure
2, temperature is to operate under 50 ℃ the condition, collects and sees through liquid, obtains glucose purity and be 99.5% dextrose syrup.Its concentrated solution is to contain glucose to give money as a gift that purity is 58%, to contain the isomaltose purity of giving money as a gift be 38% syrup, with this syrup through being 70% syrup from handing over, decolouring, concentrate, obtaining solid content.
Claims (5)
1. a recovery technique of glucose crystallization mother liquor is characterized in that, may further comprise the steps:
It is that 70%-90%, solid content are the glucose crystallization mother liquor of 20%-80% that the DE value is extracted in a, metering, the ratio adding saccharifying enzyme or the compounded saccharifying enzyme that add 10-400 μ g enzyme according to every gram solid substance react, and obtaining the DE value is the Glucose Liquid of 85%-94%;
B, will step a gained Glucose Liquid the dilution back adopt the nanofiltration membrane separation technology to separate, collect and see through liquid and obtain the glucose syrup that glucose purity is 90%-100%, concentrated solution is that the isomaltose purity of giving money as a gift is the syrup of 20%-70%;
C, with step b gained isomaltose give money as a gift purity be the syrup of 20-70% through ion-exchange, decolouring, concentrate, obtain the syrup that total solids content is 50-80%.
2. recovery technique of glucose crystallization mother liquor as claimed in claim 1 is characterized in that: the compounded saccharifying enzyme described in the step a is mixed with the debranching factor of 20%-50% by the saccharifying enzyme of 50%-80% and forms.
3. recovery technique of glucose crystallization mother liquor as claimed in claim 1 is characterized in that: the reaction conditions described in the step a is: pH4.0-5.0, temperature 50-70 ℃, reaction times 2-40 hour.
4. recovery technique of glucose crystallization mother liquor as claimed in claim 1 is characterized in that: the nanofiltration membrane described in the step b is the polymeric membrane of rolled structure, and its rejection to sal epsom is 90-98%.
5. recovery technique of glucose crystallization mother liquor as claimed in claim 1 is characterized in that: the operational condition of the nanofiltration membrane separation technology described in the step b is: charging solid concentration 10-50%, temperature 15-80 ℃, pressure 7-50kg/cm
2
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2006101476114A CN101205561B (en) | 2006-12-20 | 2006-12-20 | Recovery technique of glucose crystallization mother liquor |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2006101476114A CN101205561B (en) | 2006-12-20 | 2006-12-20 | Recovery technique of glucose crystallization mother liquor |
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| CN101205561A true CN101205561A (en) | 2008-06-25 |
| CN101205561B CN101205561B (en) | 2010-10-06 |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103509885A (en) * | 2013-09-29 | 2014-01-15 | 西王药业有限公司 | High-fructose corn syrup mother liquor and washing liquor recovery technology |
| CN103981241A (en) * | 2014-05-19 | 2014-08-13 | 山东省鲁洲食品集团有限公司 | Method for preparing high fructose corn syrup from crystallized sugar mother solution as raw material |
| CN105177087A (en) * | 2015-08-10 | 2015-12-23 | 蚌埠丰原涂山制药有限公司 | Method for preparing high fructose corn syrup by using glucose syrup |
| CN107574267A (en) * | 2017-10-13 | 2018-01-12 | 江苏久吾高科技股份有限公司 | A kind of production method and device of high-purity liquid glucose |
| CN110846359A (en) * | 2019-09-12 | 2020-02-28 | 赵兰坤 | Production method of edible glucose |
| US11198702B2 (en) | 2016-02-04 | 2021-12-14 | Industrial Technology Research Institute | Method for separating hydrolyzed product of biomass |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2006125286A1 (en) * | 2005-05-24 | 2006-11-30 | Getec Guanabara Química Industrial S.A. | Process for the production of pyrogen-free anhydrous crystalline dextrose of high purity from sucrose |
| CN1301334C (en) * | 2005-07-01 | 2007-02-21 | 江南大学 | Method for extracting high purity glucose and functional oligose from crystalline glucose mother liquid |
-
2006
- 2006-12-20 CN CN2006101476114A patent/CN101205561B/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103509885A (en) * | 2013-09-29 | 2014-01-15 | 西王药业有限公司 | High-fructose corn syrup mother liquor and washing liquor recovery technology |
| CN103509885B (en) * | 2013-09-29 | 2015-04-22 | 西王药业有限公司 | High-fructose corn syrup mother liquor and washing liquor recovery technology |
| CN103981241A (en) * | 2014-05-19 | 2014-08-13 | 山东省鲁洲食品集团有限公司 | Method for preparing high fructose corn syrup from crystallized sugar mother solution as raw material |
| CN105177087A (en) * | 2015-08-10 | 2015-12-23 | 蚌埠丰原涂山制药有限公司 | Method for preparing high fructose corn syrup by using glucose syrup |
| US11198702B2 (en) | 2016-02-04 | 2021-12-14 | Industrial Technology Research Institute | Method for separating hydrolyzed product of biomass |
| CN107574267A (en) * | 2017-10-13 | 2018-01-12 | 江苏久吾高科技股份有限公司 | A kind of production method and device of high-purity liquid glucose |
| CN110846359A (en) * | 2019-09-12 | 2020-02-28 | 赵兰坤 | Production method of edible glucose |
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| Publication number | Publication date |
|---|---|
| CN101205561B (en) | 2010-10-06 |
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Granted publication date: 20101006 Termination date: 20161220 |