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Method for producing psicose

A technique of psicose and fructose is applied in the field of preparing psicose to achieve the effects of maintaining fructose content and preventing product deterioration

Active Publication Date: 2019-07-30
SAMSANG CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, since the reaction solution containing D-psicose is a low-purity product, it is necessary to separate psicose with high purity

Method used

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  • Method for producing psicose
  • Method for producing psicose
  • Method for producing psicose

Examples

Experimental program
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Effect test

preparation example 1

[0094] Preparation Example 1. Preparation of Allulone Syrup

[0095] Allulone syrup is prepared from a fructose substrate by a biological method substantially the same as that disclosed in Korean Laid-Open Patent Publication No. 2014-0054997.

[0096] Specifically, the gene encoding psicose epimerase (DPE gene; Gene bank: EDS06411.1) derived from Clostridiuim scindens (Clostridiuim scindens) (Clostridiuim ATCC35704) was introduced into the recombinant vector (pCES_sodCDPE) , and by using the prepared recombinant vector (pCES_sodCDPE) plasmid, Corynebacterium glutamicum was transformed by electroporation. Beads including the transformed Corynebacterium glutamicum cells were prepared and packed in an immobilization reaction column, and allulone syrup was prepared from 88% by weight fructose or 95% by weight fructose at 40 Brix. That is, 21-23 (w / w)% allulone syrup ( Allulone syrup A), and 24-26 (w / w)% allulone from a raw material containing 95% by weight fructose content of gl...

preparation example 2

[0097] Preparation example 2. Preparation of fructose raffinate

[0098] At room temperature, the two allulone syrups obtained in Preparation Example 1 were passed through a column filled with the resin at a rate of twice the volume of the ion exchange resin per hour and desalted to remove impurities such as colored components and ion groups. Graded, the resins are cation exchange resins, anion exchange resins, and mixed resins of cation and anion exchange resins.

[0099] Next, by using filled with calcium (Ca 2+ ) type ion exchange resin after the high purity psicose fraction was separated by chromatography, the remainder was collected as a raffinate. The raffinate collected from the allulone syrup (psicone syrup A) obtained from a raw material having a fructose content of 77% by weight contained 85% to 98% by weight of fructose, based on 100 parts by weight of the total solid content of sugars , 1% to 10% by weight of glucose and 1% to 5% by weight of reducing sugars.

...

Embodiment 1

[0101] Example 1. Manufacture of psicose using fructose raffinate

[0102] at 3.8m 3 / hr flow rate to perform the psicose conversion process and the separation process, by using the fructose-containing raw material solution obtained in Examples 1 and 2 with a fructose content of 88% by weight to manufacture 10 tons of psicose with a content of 95% by weight solid.

[0103] The product collected through the psicose conversion process has a psicose content of 20% to 23% by weight, and after ion purification, it is passed through the separation process at a concentration of 45% to 50% by weight. 3m per hour 3 produces a raffinate, which is produced using Ca + Type separation (SMB) resin produced during separation.

[0104] Specifically, a allulone syrup having a psicose content of 20 to 23 wt% was obtained through a psicose conversion process using a raw material substrate solution (psicose syrup A) having a fructose content of 88 wt%. The psicose conversion product passes t...

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PUM

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Abstract

The present invention relates to a method for efficiently utilizing fructose raffinate obtained when separating a psicose conversion reactant with a high-purity chromatograph in a psicose production process. Specifically, the present invention produces psicose by introducing fructose raffinate, obtained from the separation process during the psicose production, into a psicose conversion reaction.

Description

technical field [0001] The present invention relates to the utilization of fructose raffinate obtained in a process for producing psicose, and more particularly, to the production of allor by using the fructose raffinate obtained in a process for producing psicose as a fructose-containing raw material Methods and apparatus for ketose. Background technique [0002] Allulose is an epimer of fructose (D-fructose) and is a functional sugar called a rare sugar, and because it has about 60 to 70% of the sweetness of sugar and almost zero calories, so it is known to have the effect of preventing and improving diabetes. In addition, allulose is known to have excellent solubility, and it is one of materials attracting attention in food utilization. [0003] There are chemical methods and biological methods in the method for producing psicose, and in recent years, the method of producing psicose by the biological method is by making a substrate solution containing fructose and psico...

Claims

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Application Information

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IPC IPC(8): C07H3/02C07H1/06C12P19/02B01D15/18B01D15/36
CPCC07H1/06C07H3/02C12P19/02B01D15/185B01D15/1828B01D15/361B01D15/1871B01D15/242B01D15/362C13K11/00C13K13/007
Inventor 朴智远朴成原金慧贞朴钟辰李康杓
Owner SAMSANG CORP
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