Method for preparing polydextrose through dextrose monohydrate

A technology of polydextrose and glucose, which is applied in the field of polydextrose production, can solve the problems of polydextrose powder not white enough, polydextrose crude product liquid color dark, and purification process difficult, etc., to achieve good color of feed liquid, low reaction temperature, The effect of reducing energy consumption

Inactive Publication Date: 2016-01-13
BAOLINGBAO BIOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Glucose is mainly anhydrous glucose. If glucose monohydrate is produced according to the existing process, the crude polydextrose feed liquid has dark color and poor light transmittance, which brings great difficulties to the subsequent purification process, and the obtained polydextrose powder is not only The color is not white enough, generally light yellow, and the taste is poor

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] (2) Dry raw materials: The raw materials are reacted for 1 hour in a reaction kettle with a temperature of 50°C and a pressure of -0.098MPa, with a stirring speed of 0-50 rpm.

[0033] (3) Polycondensation reaction: The raw materials are reacted for 3.5 hours at a temperature of 90°C, a pressure of -0.098MPa, and a stirring speed of 0-50 rpm.

[0034] (4) Dissolving sugar solution: add warm water chemical material to prepare polydextrose solution with a mass concentration of 30%.

[0035] (5) Decolorization: adding activated carbon for decolorization, the decolorization temperature is 70°C, and the decolorization time is 30 minutes. Filter activated carbon with a plate and frame filter. Measure 5-hydroxymethylfurfural≤0.05%.

[0036] (6) Membrane filtration: The feed liquid obtained in step (5) is separated and purified through a nanofiltration membrane with a molecular weight cut-off of 200-300Da, and the retentate is separated from the permeate containing glucose, c...

Embodiment 2

[0042] (2) Dry raw materials: raw materials are reacted for 50 minutes in a reactor at a temperature of 60°C and a pressure of -0.090 MPa, with a stirring speed of 0-50 rpm.

[0043] (3) Polycondensation reaction: The raw materials are reacted for 2.5 hours at a temperature of 130°C, a pressure of -0.090MPa, and a stirring speed of 0-50 rpm.

[0044] (4) Dissolving sugar solution: add warm water chemical material to prepare polydextrose solution with a mass concentration of 31%.

[0045] (5) Decolorization: add activated carbon for decolorization, the decolorization temperature is 65°C, and the decolorization time is 45 minutes. Filter activated carbon with a plate and frame filter. Measure 5-hydroxymethylfurfural≤0.05%.

[0046] (6) Membrane filtration: The feed liquid obtained in step (5) is separated and purified through a nanofiltration membrane with a molecular weight cut-off of 200-300Da, and the retentate is separated from the permeate containing glucose, citric acid,...

Embodiment 3

[0052] (2) Dry raw materials: raw materials are reacted for 20 minutes in a reaction kettle with a temperature of 70°C and a pressure of -0.098MPa, with a stirring speed of 0-50 rpm.

[0053] (3) Polycondensation reaction: The raw materials are reacted for 30 minutes at a temperature of 160°C, a pressure of -0.098MPa, and a stirring speed of 0-50 rpm.

[0054] (4) Dissolving sugar solution: add warm water chemical material to prepare polydextrose solution with a mass concentration of 32%.

[0055] (5) Decolorization: adding activated carbon for decolorization, the decolorization temperature is 60°C, and the decolorization time is 60 minutes. Filter activated carbon with a plate and frame filter. Measure 5-hydroxymethylfurfural≤0.05%.

[0056] (6) Membrane filtration: The feed liquid obtained in step (5) is separated and purified through a nanofiltration membrane with a molecular weight cut-off of 200-300Da, and the retentate is separated from the permeate containing glucose,...

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PUM

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Abstract

The invention discloses a method for preparing polydextrose through dextrose monohydrate. The method comprises the steps that the dextrose monohydrate, sorbitol and citric acid serve as raw materials, drying is performed in a reaction kettle under the low-temperature vacuum condition, then a condensation polymerization reaction is performed, and the polydextrose is prepared. The prepared polydextrose finished product through the method almost has no difference with a polydextrose finished product prepared from glucosum anhydricum, and the method has the advantages that raw material sources are rich, the cost is low, the technology is simple, equipment is simple and easy to operate, and industrialized mass production is easy to achieve.

Description

technical field [0001] The invention relates to the field of food additives, in particular to a production method of polydextrose. Background technique [0002] Polydextrose is a water-soluble dietary fiber. It is a low-calorie, sugar-free, low-glycemic index, stable, and highly tolerant special carbohydrate. It has the characteristics of prebiotics and can be widely used in various foods. Especially in functional foods with low energy and high fiber. [0003] The theme of food development in the 21st century is health and delicacy, and dietary fiber food is known as "the oasis of life". In recent years, the international food structure is being adjusted in the direction of dietary fiber food, and polydextrose It has many advantages, so that the taste of various foods will not be affected by the addition of polydextrose, and the cost of food will not be increased too much due to the addition of dietary fiber, and it can even improve the taste and reduce costs on the basis o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08B37/02
Inventor 刘宗利王乃强刘峰李克文栾庆民肖玉婧贾慧慧郝荣治冉金宝
Owner BAOLINGBAO BIOLOGY
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