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Debranching enzyme modified starch and preparing method and use thereof in hard capsule production

The technology of starch glue and hollow capsule is applied in the field of modified starch, which can solve the problems of undisclosed debranching enzymes and low degree of branching, and achieve the effect of strong and tough material and good film-forming property.

Pending Publication Date: 2020-01-31
DAH FENG CAPSULE IND CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the two prior patents mention that starch can be modified by isoamylase to produce hollow capsules, they do not clearly disclose that the use of debranching enzymes to obtain a lower degree of branching and have good gelation ) modified starch

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Embodiment one, prepare the modified starch glue solution modified by isoamylase

[0024] Weigh 100 grams of starch, fully dissolve it in 500 grams of 85°C pure water, and then lower the temperature of the starch solution to 40-60°C. Add 0.1U-20000U of isoamylase to the resulting starch solution, and react at 40-60°C for 2 hours. Heat the reaction mixture to high temperature (above about 85°C) to destroy the enzyme and terminate the reaction. The temperature of the reaction mixture is lowered to 40-60° C. to complete the modified starch glue (1).

Embodiment 2

[0025] Embodiment two, prepare the modified starch glue solution modified by pullulanase

[0026] Weigh 100 grams of starch, fully dissolve it in 500 grams of 85°C pure water, and then lower the temperature of the starch solution to 40-60°C. 0.1U-20000U of pullulanase is added to the resulting starch solution and reacted at 40-60°C for 2 hours. Heat the reaction mixture to high temperature (above about 85°C) to destroy the enzyme and terminate the reaction. The temperature of the reaction mixture is lowered to 40-60° C. to complete the modified starch glue solution (2).

Embodiment 3

[0027] Embodiment three, prepare the modified starch glue modified by pullulanase

[0028] Weigh 100 grams of starch, fully dissolve it in 500 grams of 85°C pure water, and then lower the temperature of the starch solution to 40-60°C. 0.1U-20000U of pullulanase is added to the resulting starch solution and reacted at 40-60°C for 2 hours. Heat the reaction mixture to high temperature (above about 85°C) to destroy the enzyme and terminate the reaction. The reaction mixture was cooled again to 40-60 °C. Then add carrageenan with a weight percentage of 0.05% to 5% and potassium chloride with a weight percentage of 0.01% to 5% to complete the modified starch glue solution (3).

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PUM

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Abstract

The present invention relates to a modified starch and a method for obtaining the modified starch by using a debranching enzyme, such as isoamylase, pullulanase, limit dextrinase and the like. The debranching enzyme modified starch of present invention exhibits excellent film-forming capacity, film strength, and gelation ability, so as to be used as a material for making hard capsules without theuse of coagulants and plasticizers.

Description

technical field [0001] The invention relates to a modified starch obtained by using a debranching enzyme for modification, and a preparation method thereof. More particularly, it relates to a modified starch with debranching enzyme for making hard empty capsules, its preparation method and its application in the manufacture of hard empty capsules. Background technique [0002] Starch is an inexpensive and widely sourced natural material whose safety has been verified for quite a long time. However, capsules made of native starch or chemically modified starch often have problems such as high glue viscosity and insufficient capsule strength (easy to crack), which limits the application of starch in hard empty capsules and other packaging materials. [0003] In the prior art, there have been attempts to treat starch with enzymes, intending to apply the obtained modified starch slurry to the production of hollow capsules. For example, the authorized announcement number is CN 1...

Claims

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Application Information

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IPC IPC(8): C12P19/04C12P19/16A61K9/48A61K47/36
CPCC12P19/04C12P19/16A61K9/4816A61K47/36C08B30/12C08L3/02A23L29/219A23V2002/00
Inventor 张睿展赵欣怡李佩瑄陈威宇
Owner DAH FENG CAPSULE IND CO LTD