CN103589763A - Method for preparing fructose syrup from glucose syrup - Google Patents
Method for preparing fructose syrup from glucose syrup Download PDFInfo
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- CN103589763A CN103589763A CN201310503979.XA CN201310503979A CN103589763A CN 103589763 A CN103589763 A CN 103589763A CN 201310503979 A CN201310503979 A CN 201310503979A CN 103589763 A CN103589763 A CN 103589763A
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- glucose syrup
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- gac
- slip
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Abstract
The invention discloses a method for preparing fructose syrup from glucose syrup, which comprises the following steps: desorbing the raw material glucose syrup with activated carbon, carrying out pressure filtration, cooling, carrying out primary ion exchange, regulating the pH value, cooling, eliminating bubbles, carrying out isomerization reaction, carrying out secondary ion exchange, desorbing with activated carbon, carrying out pressure filtration, carrying out microfiltration, evaporating to the required concentration, and the like. The method is simple and easy to implement, has the advantages of high conversion efficiency and low sugar loss, and greatly enhances the economic benefit of the processing enterprise; and since the related production equipment is common, the equipment investment of the enterprise is greatly lowered, and thus, the method has obvious practicality.
Description
Technical field
The present invention relates to a kind of preparation technology of fructose syrups, relate in particular to and a kind ofly take glucose syrup and prepare the method for fructose syrups as raw material.
Background technology
Fructose syrups is colourless odorless, normal temperature current downflow is good, easy to use, is widely used in the food-processing industries such as carbonated drink, fruit juice, fruit wine, cake, can, jam, preserved fruit, milk-product, oral liquid and cold drink, can part even all replace sucrose, have broad application prospects.In the fructose syrups course of processing, supervene certain glucose syrup, it is final purpose that glucose slurry is changed into fructose syrups, glucose can be converted into fructose under allomerase effect, but because this conversion is reversible, in traditional technique, conversion rate is low, turnover ratio is low, sugar loss is large, and product yield is low, and actual production effect is undesirable.
Summary of the invention
For overcoming above-mentioned technical problem, the invention provides a kind of efficiency of conversion high, technique is simple, and the glucose syrup that utilizes that gained fructose syrups index is stable is prepared the method for fructose syrups.
For realizing above-mentioned technical purpose, the invention provides a kind of method of utilizing glucose syrup to prepare fructose syrups, it comprises the steps:
(1) using the glucose syrup of solid content 40%-50% as raw material, the ratio in 3 ‰ is added gac, at 60 ℃-70 ℃, carries out gac desorption;
(2) above-mentioned slurries are carried out to press filtration, the glucose syrup leaching is cooled to <50 ℃;
(3) carry out ion-exchange for the first time, the glucose syrup after handing over answers pH value >3.5, electricity to lead <30;
(4) add soda ash and regulate glucose syrup PH to 7.6-7.8, be cooled to 55 ℃ of-58 C, eliminate the bubble in glucose syrup;
(5) to adding isomerase in glucose syrup, carry out isomerization reaction, part glucose syrup is converted into fructose syrups;
(6) after slip is cooling, carry out ion-exchange for the second time, the slip after handing over answers 3.5<PH<4.5, electricity to lead <50;
(7) to the gac that adds 8 ‰ in slip, at 62 ℃-65 ℃, again carry out gac desorption;
(8) above-mentioned slip is carried out press filtration, secondary filter, is evaporated to and requires concentration, obtain finished product.
The present invention has following beneficial effect: it usings glucose syrup as raw material, adopts charcoal to take off, from operations such as friendship, isomerization, prepare fructose syrups, and technique is comparatively succinct, easily implement, efficiency of conversion is high, and sugar loss is few, has greatly improved the economic benefit of processing enterprise; Because its production unit relating to is comparatively common, the equipment that greatly reduces enterprise is thrown, and then has significant practicality.
Embodiment
embodiment mono-
Get one ton of the glucose syrup of solid content 40%, add 3KG gac, at 60 ℃, carry out gac desorption; Above-mentioned slurries are carried out to press filtration, and the glucose syrup leaching is cooled to 40 ℃; Carry out ion-exchange for the first time, from the glucose syrup PH after handing over be 4, electricity leads 25; Adding soda ash adjusting glucose syrup PH is 7.6, is cooled to 55 ℃, eliminates the bubble in glucose syrup; To adding isomerase in glucose syrup, carry out isomerization reaction, part glucose syrup is converted into fructose syrups; After slip is cooling, carry out ion-exchange for the second time, from the slip PH after handing over be 3.8, electricity leads 45; Gac to adding 8KG in slip again carries out gac desorption at 62 ℃; Above-mentioned slip is carried out press filtration, secondary filter, is evaporated to and requires concentration, obtain finished product.
embodiment bis-
Get one ton of the glucose syrup of solid content 50%, add 3KG gac, at 70 ℃, carry out gac desorption; Above-mentioned slurries are carried out to press filtration, and the glucose syrup leaching is cooled to 45 ℃; Carry out ion-exchange for the first time, from the glucose syrup PH after handing over be 4.5, electricity leads 20; Adding soda ash adjusting glucose syrup PH is 7.8, is cooled to 58 ℃, eliminates the bubble in glucose syrup; To adding isomerase in glucose syrup, carry out isomerization reaction, part glucose syrup is converted into fructose syrups; After slip is cooling, carry out ion-exchange for the second time, from the slip PH after handing over be 4.2, electricity leads 40; Gac to adding 8KG in slip again carries out gac desorption at 65 ℃; Above-mentioned slip is carried out press filtration, secondary filter, is evaporated to and requires concentration, obtain finished product.
embodiment tri-
Get one ton of the glucose syrup of solid content 45%, add 3KG gac, at 65 ℃, carry out gac desorption; Above-mentioned slurries are carried out to press filtration, and the glucose syrup leaching is cooled to 35 ℃; Carry out ion-exchange for the first time, from the glucose syrup after handing over, answer that PH is 5, electricity leads 23; Adding soda ash adjusting glucose syrup PH is 7.7, is cooled to 57 ℃, eliminates the bubble in glucose syrup; To adding isomerase in glucose syrup, carry out isomerization reaction, part glucose syrup is converted into fructose syrups; After slip is cooling, carry out ion-exchange for the second time, from the slip PH after handing over be 4, electricity leads 35; Gac to adding 8KG in slip again carries out gac desorption at 63 ℃; Above-mentioned slip is carried out press filtration, secondary filter, is evaporated to and requires concentration, obtain finished product.
The fructose syrups of preparing through above-mentioned steps, it is colourless or light yellow translucent thick liquid, has the distinctive fragrance of fructose syrups, sweet taste is soft, without the visible impurity of twenty-twenty vision.
Instrument detects after testing, and its physical and chemical index and microbiological indicator all meet respective standard and regulation.
Claims (1)
1. utilize glucose syrup to prepare a method for fructose syrups, it comprises the steps:
(1) using the glucose syrup of solid content 40%-50% as raw material, the ratio in 3 ‰ is added gac, at 60 ℃-70 ℃, carries out gac desorption;
(2) above-mentioned slurries are carried out to press filtration, the glucose syrup leaching is cooled to <50 ℃;
(3) carry out ion-exchange for the first time, the glucose syrup after handing over answers pH value >3.5, electricity to lead <30;
(4) add soda ash and regulate glucose syrup PH to 7.6-7.8, be cooled to 55 ℃ of-58 C, eliminate the bubble in glucose syrup;
(5) to adding isomerase in glucose syrup, carry out isomerization reaction, part glucose syrup is converted into fructose syrups;
(6) after slip is cooling, carry out ion-exchange for the second time, the slip after handing over answers 3.5<PH<4.5, electricity to lead <50;
(7) to the gac that adds 8 ‰ in slip, at 62 ℃-65 ℃, again carry out gac desorption;
(8) above-mentioned slip is carried out press filtration, secondary filter, is evaporated to and requires concentration, obtain finished product.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310503979.XA CN103589763A (en) | 2013-10-24 | 2013-10-24 | Method for preparing fructose syrup from glucose syrup |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310503979.XA CN103589763A (en) | 2013-10-24 | 2013-10-24 | Method for preparing fructose syrup from glucose syrup |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103589763A true CN103589763A (en) | 2014-02-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310503979.XA Pending CN103589763A (en) | 2013-10-24 | 2013-10-24 | Method for preparing fructose syrup from glucose syrup |
Country Status (1)
| Country | Link |
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| CN (1) | CN103589763A (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102180913A (en) * | 2011-04-01 | 2011-09-14 | 江南大学 | Method for preparing high-purity lactulose |
| CN102912043A (en) * | 2012-10-24 | 2013-02-06 | 安徽汇佳生物科技有限公司 | Method for producing purified fructose |
-
2013
- 2013-10-24 CN CN201310503979.XA patent/CN103589763A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102180913A (en) * | 2011-04-01 | 2011-09-14 | 江南大学 | Method for preparing high-purity lactulose |
| CN102912043A (en) * | 2012-10-24 | 2013-02-06 | 安徽汇佳生物科技有限公司 | Method for producing purified fructose |
Non-Patent Citations (1)
| Title |
|---|
| 王淑华等: "低聚果糖糖浆的制备工艺研究", 《河北工业科技》, vol. 28, no. 4, 31 July 2011 (2011-07-31), pages 263 - 265 * |
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Application publication date: 20140219 |