Method for preparing polydextrose from glucose raffinate

A polydextrose and glucose technology, applied in the field of polydextrose preparation, can solve the problems of high content of polydextrose by-products, high production costs, waste of glucose raffinate resources, etc., to improve the utilization rate of by-products, reduce the generation of by-products, The effect of reducing production costs

Pending Publication Date: 2022-02-08
BAOLINGBAO BIOLOGY
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Aiming at the problems of high polydextrose by-product content, high production cost, and resource waste of by-product glucose raffinate in the production process of isomalto-oligosaccharides in the prior art, the present invention provides a method for preparing polydextrose from glucose raffinate Method, by refining the glucose raffinate, the boiling temperature of the sugar is increased, thereby improving the quality of the crude polydextrose such as light transmission and chroma, reducing the refining cost of the polydextrose, and improving the quality of the finished product and the utilization rate of by-products

Method used

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  • Method for preparing polydextrose from glucose raffinate

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Embodiment 1

[0026] (1) Using glucose raffinate after chromatographic separation of isomaltose oligosaccharide as raw material, high temperature and high sugar concentration granular activated carbon was used for decolorization. The decolorization temperature was 78°C, the sugar concentration was 50%, and the flow rate was 1.0 BV / h; The remaining liquid is separated, and the separation resin is selected from Na + Type cation and Cl - Type anionic resin, separation temperature 50°C, sugar concentration 50%, flow rate 3 BV / h, after separation, the glucose raffinate was concentrated to sugar concentration 60% by four effects;

[0027] (2) Put the concentrated glucose raffinate into the polymerization reactor, add sorbitol into the reactor, the dry basis ratio of glucose liquid: sorbitol is 89:11, then heat up to 150±5℃ for 90min, and keep the vacuum at -0.07 ~-0.1MPa; add citric acid with 0.53% of the total dry basis of glucose and sorbitol, keep the vacuum at -0.07~-0.1MPa, heat up to 230±5...

Embodiment 2

[0030] (1) Using glucose raffinate after chromatographic separation of isomaltose oligosaccharide as raw material, high temperature and high sugar concentration granular activated carbon was used for decolorization. The decolorization temperature was 75°C, the sugar concentration was 45%, and the flow rate was 1.2 BV / h; The remaining liquid is separated, and the separation resin is selected from Na + Type cation and Cl — Type anionic resin, separation temperature 50°C, sugar concentration 45%, flow rate 4.5 BV / h, after separation, the glucose raffinate was concentrated to a sugar concentration of 60% by four effects;

[0031] (2) Put the concentrated glucose raffinate into the polymerization reaction kettle, add sorbitol into the reaction kettle, the dry basis ratio of glucose liquid: sorbitol is 89:11, then heat up to 145±5℃ for 120min, and keep the vacuum at -0.07 ~-0.1MPa; add citric acid with 0.53% of the total dry weight of glucose and sorbitol, keep the vacuum at -0.07~...

Embodiment 3

[0034] (1) Using glucose raffinate after chromatographic separation of isomaltose oligosaccharide as raw material, high temperature and high sugar concentration granular activated carbon was used for decolorization. The decolorization temperature was 80°C, the sugar concentration was 55%, and the flow rate was 0.8 BV / h; The remaining liquid is separated, and the separation resin is selected from Na + Type cation and Cl — Type anion resin, separation temperature 55°C, sugar concentration 55%, flow rate 2.5 BV / h, after separation, the glucose raffinate was concentrated to 60% sugar concentration by four effects;

[0035] (2) Put the concentrated glucose raffinate into the polymerization reactor, add sorbitol into the reactor, the dry basis ratio of glucose liquid: sorbitol is 89:11, then raise the temperature to 155±5℃ for 60min, and keep the vacuum at -0.07 ~-0.1MPa; add citric acid with 0.58% of the total dry basis of glucose and sorbitol, keep the vacuum at -0.07~-0.1MPa, he...

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Abstract

The invention discloses a method for preparing polydextrose by using glucose raffinate. The method comprises the following steps: taking a byproduct glucose raffinate of isomaltooligosacharide as a raw material, and sequentially carrying out decoloration, ion exchange and concentration; mixing the concentrated glucose raffinate with sorbitol, raising the temperature to 140-160 DEG C, and keeping the temperature for 50-120 minutes; then adding citric acid and increasing temperature to 220-240 DEG C to carry out a polymerization reaction for 60-150 min; adding water to melt to obtain crude polydextrose, and refining the crude product to obtain finished polydextrose. By refining the glucose raffinate, the sugar boiling temperature of the glucose raffinate is increased, so that the light transmittance, chromaticity and other qualities of the crude polydextrose are improved, the refining cost of the polydextrose is reduced, and the quality of the finished product and the utilization rate of byproducts are improved.

Description

technical field [0001] The invention belongs to the technical field of polydextrose preparation, and in particular relates to a method for preparing polydextrose by using glucose raffinate. Background technique [0002] Polydextrose is a new type of water-soluble dietary fiber. It is obtained from glucose and sorbitol through polymerization under acidic and vacuum conditions. It has been approved as a health food ingredient by more than 50 countries. Used in the manufacture of fortified fiber food, it has the function of keeping the intestines and stomach unobstructed after eating. Research on polydextrose was relatively early in the United States and Japan, and polydextrose has been approved by the US FDA as a safe food additive. my country's research on polydextrose started relatively late, but it has developed rapidly. At present, it has also been included in food additives. The production of polydextrose is mainly based on powdered glucose and sorbitol as raw materials...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08B37/02
CPCC08B37/0003C08B37/0009
Inventor 李克文栾庆民孔刘娟熊小兰张莉杨俊丽张俊瑶昝明刚马会刚
Owner BAOLINGBAO BIOLOGY
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