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A kind of continuous preparation method of granular isomalt

A technology of isomalt and granules, which is applied in the field of preparation of isomalt, can solve the problems of unfavorable economy, intermittent addition of seed crystals, and insufficient cooling time, etc., and achieves reduced production costs, short time consumption, The effect of improving productivity

Active Publication Date: 2020-05-15
ZHEJIANG HUAKANG PHARMA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Disadvantages of this technology: (1) A large amount of mother liquor (molasses) will be produced during the cooling crystallization process, which is difficult to crystallize again, so it is economically unfavorable; (2) Isomalt is produced by mixing GPS and GPM The difference in the solubility of the two components, the stability of the composition of the product obtained by cooling crystallization is poor
Another example is that the patent with the publication number CN101759729A discloses a method for producing isomalt crystals, which uses negative pressure evaporation and crystallization to obtain isomalt crystals. The main disadvantage of this technology is that the solubility of GPS and GPM is different. , will be separated out during the vacuum crystallization process, and the finished product cannot be mixed evenly
Disadvantages of this technology: (1) High wind temperature and high heat consumption; (2) The viscosity of the isomalt solution becomes larger after the water evaporates, the particles cool down slowly, and insufficient cooling time will lead to unstable discharge properties
Disadvantages of this technology: the molten isomalt condenses rapidly in the solvent, and due to the sudden cooling of the temperature, it forms glassy isomalt, which is unstable in nature, has poor fluidity, and is easy to agglomerate when heated
Disadvantages of this method: (1) Long cooling time; (2) Seed crystals are added intermittently, resulting in poor production continuity

Method used

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  • A kind of continuous preparation method of granular isomalt
  • A kind of continuous preparation method of granular isomalt

Examples

Experimental program
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preparation example Construction

[0022] Please refer to figure 1 As shown, the preferred embodiment of the continuous preparation method of granular isomalt of the present invention comprises the following steps: using isomalt refined liquid as raw material, obtaining isomalt concentrated solution after evaporation and concentration, and converting to buffer in the buffer, and use a twin-screw extruder to extrude and granulate. First, add powdered isomalt to the extruder as a seed crystal, and then add concentrated isomalt refined liquid, and Isomalt concentrated liquid and isomalt powdery seed crystals are extruded and mixed to discharge the material, and the discharged material is dried by vacuum drying, and then the dried material is crushed and sieved to obtain the granular isomalt Maltulitol finished product.

[0023] The continuous preparation method of the granular isomalt comprises the following steps, such as figure 1 The arrows in the

[0024] (1) Evaporation and concentration: further evaporatin...

Embodiment 1

[0033] The continuous preparation method of the first granular isomalt of the present invention comprises the following steps:

[0034] (11) Further evaporating and concentrating the refined isomalt solution, controlling the vacuum degree to -0.05Mpa, evaporating at a final temperature of 130°C, and having a solid content of 78%, to obtain a concentrated isomalt solution.

[0035] (12) Transfer the isomalt concentrate to the buffer, first add powdered isomalt into the twin-screw extruder as a seed crystal, and add the isomalt concentrate to the double-screw extruder through the rotor pump. In the screw extruder, add the liquid while adding the seed crystal, the mass ratio of the seed crystal to the liquid is 2.2, control the stirring, and discharge after 25 minutes. The diameter of the isomalt discharge is 8mm, and the discharge temperature is 97°C.

[0036] (13) Vacuum tube drying is carried out on the output of isomalt, the drying temperature is controlled at 20°C~110°C, the...

Embodiment 2

[0041] The second continuous preparation method of granular isomalt of the present invention comprises the following steps:

[0042] (21) Further evaporating and concentrating the refined isomalt solution, controlling the vacuum degree to -0.068Mpa, evaporating at a final temperature of 121.9°C, and having a solid content of 84.3%, to obtain a concentrated isomalt solution.

[0043] (22) Transfer the isomalt concentrate to the buffer, first add powdered isomalt into the twin-screw extruder as a seed crystal, and add the isomalt concentrate to the double-screw extruder through the rotor pump. In the screw extruder, the liquid is added while adding the seed crystal, the mass ratio of the seed crystal to the liquid is 1.5, the stirring is controlled, and the material is discharged after 20 minutes. The discharge diameter of isomalt is 9mm, and the discharge temperature is 90°C.

[0044] (23) Vacuum tube drying is carried out on the output of isomalt, the drying temperature is con...

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Abstract

The present invention relates to a continuous preparation method of granular isomalt. The method comprises the following steps: using a refined isomaltol liquid as a raw material, performing evaporating and concentrating to obtain an isomalt concentrate, transferring the isomalt concentrate to a buffer for buffering, performing extrusion granulation by a twin-screw extruder, first adding powderedisomalt to the extruder as a seed crystal, then adding the concentrated refined isomaltol liquid, performing extrusion, uniform mixing and discharging on the isomalt concentrate and the powdered isomalt seed crystal, drying the discharged materials by vacuum drying, and then pulverizing and sieving the dried discharged materials so as to obtain the finished granular isomalt. The method adopts a full crystallization means which is divided into two parts: granulation and drying. The whole production process is continuous and efficient, and does not produce any mother liquor, so that a non-glassgranular isomalt product meeting quality requirements is obtained.

Description

technical field [0001] The invention belongs to the technical field of isomalt preparation, in particular to a continuous preparation method of granular isomalt. Background technique [0002] Isomalt, also known as isomalt, can be used as a sugar substitute. It is widely favored because of its superior physiological functions and high safety. It has already occupied more than 50% of the sugar-alcohol additives in sugar-free foods abroad. The demand is large, but the production is difficult. At present, only a few enterprises in my country have successfully realized industrialization. [0003] The preparation process of isomalt from isomaltulose is relatively traditional, and its bottleneck lies in the crystallization of isomalt. For example, the patent publication No. CN1275574A discloses a preparation method of palatinitol, which adopts cooling crystallization to obtain crystalline isomalt. Disadvantages of this technology: (1) A large amount of mother liquor (molasses) wi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C07H15/04
CPCC07H15/04
Inventor 罗家星毛宝兴龚小平陈德水胡军宏廖承军
Owner ZHEJIANG HUAKANG PHARMA