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Fructose separation method

A fructose and fructose syrup technology, applied in the field of chromatographic separation, can solve the problems of unpublished literature and patent reports, etc., and achieve the effects of prolonging service life, reducing volume, and reducing equipment cost

Active Publication Date: 2015-05-13
NANJING UNIV OF TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But so far, there are no published literature and patent reports on the technical application of using ion exchange fibers as chromatographic fillers for fructose separation.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] 1) Preparation of ion-exchange fibers: select strongly acidic ion-exchange fibers with a diameter of 33-40 μm and an exchange capacity of 3.3 mmol / g in a dry state, cut them into short fibers of about 3-10 mm, and soak them in pure water. Excess calcium ions are used to replace it to complete the conversion from hydrogen form to calcium form. In particular, the polystyrene-based functional fiber base material proposed in Chinese patent 201310533240.3 is used to prepare ion exchange fibers through cross-linking reaction and functional modification. Other fiber materials that achieve this function are also acceptable. The processing process can refer to the prior art, typical reference materials such as: F. andJ. Homogeneous and Heterogeneous Sulfonation of Polymers: A Review. Polym. Eng. Sci. 1998, 38(5), 783-792.

[0019] 2) Packing of ion exchange fibers: Soak the ion exchange fibers that have been converted into calcium form in pure water, and pack them in the col...

Embodiment 2

[0023] 1) Preparation of ion-exchange fibers: select strongly acidic ion-exchange fibers with a diameter of 33-40 μm and an exchange capacity of 3.3 mmol / g in a dry state, cut them into short fibers of about 3-10 mm, and soak them in pure water. Excess calcium ions are used to replace it to complete the conversion from hydrogen form to calcium form. The ion exchange fiber material of Example 1 was used.

[0024] 2) Packing of ion exchange fibers: Soak the ion exchange fibers that have been converted into calcium form in pure water, and pack them in the column length compression method. The packing density of the fibers is 500g / L, and the packing diameter-to-height ratio is 1:70.

[0025] 3) Separation of fructose syrup: the total sugar concentration of fructose syrup is 50%, the fructose content is 42%, and the glucose content is 58%. The sugar solution with a packing volume of 8.5% was taken at a flow rate of 1.5BV / h, and was adsorbed by an ion exchange fiber column at 26°C,...

Embodiment 3

[0028] 1) Preparation of ion-exchange fibers: select strongly acidic ion-exchange fibers with a diameter of 33-40 μm and an exchange capacity of 3.3 mmol / g in a dry state, cut them into short fibers of about 3-10 mm, and soak them in pure water. Excess calcium ions are used to replace it to complete the conversion from hydrogen form to calcium form. The ion exchange fiber material of Example 1 was used.

[0029] 2) Packing of ion exchange fibers: Soak the ion exchange fibers that have been converted into calcium form in pure water, and pack them in the column length compression method. The packing density of the fibers is 500g / L, and the packing diameter-to-height ratio is 1:70.

[0030] 3) Separation of fructose syrup: Take the commercial F42 fructose syrup diluted to 50% of the total sugar concentration, the volume is 8.5% of the filler volume, and the ion exchange fiber column is adsorbed at a flow rate of 1.5BV / h at 26°C, and then the sugar solution is used 7.2 volumes of...

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Abstract

The invention relates to a fructose separation method using ion exchange fiber as chromatographic packing, the ion exchange fiber is used as the chromatographic separation packing for separation and preparation of high purity fructose from high fructose corn syrup and other mixed sugar solution, the mixed sugar solution is a mixed solution containing high fructose corn syrup F42 or other concentration of fructose, the ion exchange fiber is strong acidic ion exchange fiber, the diameter at dry state is 8-170 mum, cation exchange capacity is 2.0-4.3mmol / g, and before being used for separation of fructose, the replacement of calcium ions is performed in advance for the conversion from hydrogen type to calcium type. Compared with the ion exchange granular resin chromatographic column, the strong acid ion exchange fiber shows more excellent separation precision and higher production efficiency.

Description

technical field [0001] The invention relates to a process method for separating and preparing high-purity fructose from fructose syrup by using strongly acidic ion exchange fiber as a new chromatographic filler, belonging to the technical field of chromatographic separation. Background technique [0002] Fructose has excellent properties such as high sweetness, good taste, anti-caries, and does not cause blood sugar fluctuations after eating. It is widely used in the production of food, medicine and health products, and the market demand is increasing day by day. Since fructose and glucose are isomers with similar physical and chemical properties, separation is very difficult. How to achieve efficient separation of fructose and glucose is an urgent problem to be solved in fructose production. The separation methods of fructose and glucose mainly include crystallization method, double salt method, chromatographic separation method, chemical separation method, reverse osmosis ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C13K11/00B01D15/36
CPCB01D15/36B01D15/361C13K11/00
Inventor 林晓陆剑鸣张丽方
Owner NANJING UNIV OF TECH
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