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Process for preparing isomaltitol

A technology of isomalt and isomaltulose, which is applied in the field of preparing isomalt, can solve the problems of low benefit, more sucrose raw materials, consumption, etc., and achieve the goals of saving energy, improving utilization rate, and improving production efficiency Effect

Active Publication Date: 2006-12-27
LIFECOME BIOCHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Due to the fact that about 24% of isomaltulose in the molasses produced by this process has not been crystallized and separated out, it cannot be hydrogenated and utilized, and can only be sold as a low-priced by-product, so that the production of isomaltulose requires more sucrose raw materials, and the benefit is low

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] The technological process of preparing isomalt is as follows:

[0023] (1) Pass the sterilized sucrose solution through the immobilized α-glucosyltransferase reaction tank (immobilized α-glucosyltransferase enzyme beads are housed in the reaction tank), and react to produce about 85% enzyme-derived The conversion solution of converted isomaltulose and about 15% other miscellaneous sugars (such as sucrose, glucose, etc.);

[0024] (2) Pass the resulting transformation liquid into a sugar-removing reaction tank equipped with immobilized beer yeast (Saccharomycescerevisiae) at a temperature of 25-32°C, ventilate and stir slowly for 30-60 minutes at 28-32°C until no bubbles are generated It shows that the miscellaneous sugars have been consumed, and the conversion solution of miscellaneous sugars is obtained;

[0025] (3) Centrifuge the converted liquid after removing miscellaneous sugars to remove residues to obtain a clear liquid containing isomaltulose, which can contai...

Embodiment 2

[0027] (1) With a 1000 milliliter Erlenmeyer flask, hold 50 grams of immobilized α-glucosyltransferase enzyme beads as the immobilized cell reaction column; add 500 milliliters of 50% (W / V) sterilized sucrose solution; On a shaker, shake the flask for 1-2 hours; filter and remove the immobilized α-glucosyltransferase enzyme beads to obtain a conversion solution containing isomaltulose and other miscellaneous sugars converted by the enzyme;

[0028] (2) Put the transformation solution into a triangular flask (as a reaction tank for removing miscellaneous sugars) with 50 grams of immobilized Saccharomyces uvarum (Saccharomyces uvarum) and slowly shake it for 30 to 60 Minutes, until no air bubbles are produced, filter and remove the immobilized yeast nylon silk cloth piece, and obtain the conversion solution for removing miscellaneous sugars;

[0029] (3) Centrifuge the above-mentioned sugar-removing conversion solution to remove residues to obtain a clear liquid containing isoma...

Embodiment 3

[0031] The steps of the process for preparing isomalt are basically the same as in Example 1, except that in the second step, immobilized Hansenula anomala is installed in the reaction tank for removing miscellaneous sugars.

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PUM

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Abstract

This is the preparation method of isomalttulose. The steps includes: (1) the raw material is aqueous sucrose solutions, make it through the stablized alpha-glucosyltransferase reaction column or can to produce the transformation liquid which contains isomaltose and other sugers that transformed from enzyme; (2) make the prepared transformation liquid through de-sugers reactor with yeast immobilization in it, to get rid of the sugers other than isomaltose in transformation liquid; (3) then remove the residua in the acentric transformation liquid and get the clear liquid that contains isomaltose, then catalytic hydrogenation to produce isomalttulose. The content of isomaltose in the transformation liquid can reach more than 98%, then after catalytic hydrogenation, the obtained isomalttulose can increase the utilization rate of sucrose. Besides, it can also save energy and increase productivity.

Description

technical field [0001] The invention relates to a method for preparing isomalt with sucrose solution as raw material. Background technique [0002] Isomalt (Palatinit) is also called Palatinitol, and the existing process of preparing isomalt with sucrose solution as raw material is as follows: [0003] 1. Using sucrose solution as raw material, pass the sucrose solution through the immobilized cell reaction column with α-glucosyltransferase to obtain about 85% of isomaltulose converted by enzyme and about 15% of other impurities The conversion solution of sugar (such as sucrose, glucose, etc.); [0004] 2. Concentrating and crystallizing the prepared conversion solution, separating isomaltulose crystals and molasses (wherein the molasses still contains about 24% isomaltulose and failed to crystallize out); [0005] 3. Dissolve the obtained isomaltulose crystals into an isomaltulose solution, then pass the isomaltulose solution through a reactor equipped with a catalyst, ap...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C12P7/26C12R1/85
Inventor 贺鹰抟梁超
Owner LIFECOME BIOCHEM
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