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Method and equipment for continuous large-scale separation and preparation of D-psicose

A large-scale technology of allulose, applied in the field of continuous large-scale separation and preparation of D-psicose, which can solve problems such as complex components

Inactive Publication Date: 2018-11-23
LIVINGZONE SHANGHAI BIO CHEM TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The price of starch is lower than glucose, fructose and sucrose, yet the solution containing D-psicose obtained by the preparation method using starch as raw material has complex components, and there is no purification of this complex solution in the art to obtain D-alpha Process for industrial scale separation of ketose

Method used

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  • Method and equipment for continuous large-scale separation and preparation of D-psicose
  • Method and equipment for continuous large-scale separation and preparation of D-psicose
  • Method and equipment for continuous large-scale separation and preparation of D-psicose

Examples

Experimental program
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Effect test

Embodiment 1

[0120] The allulose aqueous solution obtained from starch as raw material through enzymatic conversion is desalted by ion exchange resin, preheated to 60°C, injected into a chromatographic column with a diameter-to-height ratio of 1:10, and filled with calcium-type cationic chromatographic resin (column length 100cm, diameter 10.0cm, a total of 6), the total amount of resin is 4Kg, the total amount of feed is 1Kg (including 0.084Kg of allulose, 0.252Kg of glucose, 0.246Kg of fructose, and 0.018Kg of other sugars), the column temperature is controlled At 60°C, the feed flow rate is 0.020BV / h, eluted with deionized water, the ratio of material to water is 1.0:2.0, and the elution flow rate is 0.050BV / h. The eluate and residual liquid are collected respectively to obtain Alor Ketose (first discharge liquid, slow component, 0.076Kg), fructose+glucose (second discharge liquid, fast component, 0.48Kg) and residual solution (maltose+isomaltose+maltotriose+polysaccharide+ The aqueous ...

Embodiment 2 to 11

[0127] According to the operation of example 1, feed 1.0Kg, chromatographic column length 100cm, adjust factors such as feed temperature, column temperature, feed speed, elution speed and chromatographic column diameter-height ratio, the results are shown in Table 1, in Table 1 The resin particle size of chromatographic separation is: 50-500um.

[0128] Table 1

[0129]

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Abstract

The invention relates to a method and equipment for continuous large-scale separation and preparation of D-psicose. Specifically, the method comprises the following steps that (1) a mixed solution containing carbohydrates is provided to serve as feedstock, wherein the mixed solution containing the carbohydrates comprises psicose, fructose, glucose and oligosaccharide; and (2) chromatographic separation is carried out, specifically, the mixed solution containing the carbohydrates are separated through chromatographic separation equipment based on a simulated moving bed chromatography so as to obtain a solution containing the psicose, wherein the purity of the psicose in the solution containing the psicose is greater than 80 wt%, and the mass of dry substances in the solution is taken as a reference.

Description

technical field [0001] The invention belongs to the field of food raw material processing, and in particular relates to a method and equipment for continuous large-scale separation and preparation of D-psicose. Background technique [0002] D-psicose is a rare sugar that exists in nature. According to research reports, D-psicose is a new type of functional monosaccharide. Compared with sucrose, it has low calories and pure taste. Metabolism, can control blood sugar very well. In 2011, the U.S. FDA approved D-psicose as a food raw material and considered it a safe food; so D-psicose is expected to become a substitute for sucrose, and is widely used in diet, health care and food as a food or food additive. medicine and other fields. [0003] At present, the production cost of D-psicose is still relatively high. As a new type of sweetener, it needs to be further reduced in order to be popularized and used. In particular, the separation and purification technology of allulose...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C13K13/00
CPCC13K13/007
Inventor 任世阔牛志国韩子明赵红兵吴会广
Owner LIVINGZONE SHANGHAI BIO CHEM TECH CO LTD
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