Manufacturing technique of oxidized hydroxypropyl starch

A technology for oxidizing hydroxypropyl group and a production process, applied in the field of edible auxiliary materials, can solve problems such as unfavorable mass production, environmental pollution, complicated process, etc., and achieve the effects of being beneficial to mass production, reducing pollution and simple production process

Inactive Publication Date: 2017-03-29
NANTONG HONGCI PHARMA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The process is complicated, and oxidized hydroxypropyl starch is obtained by adding acid and alkali substances to make it react, and the waste water and waste gas generated after the reaction will pollute the environment, and the cost is high, which is not conducive to mass production

Method used

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  • Manufacturing technique of oxidized hydroxypropyl starch

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] A kind of preparation technology of oxidized hydroxypropyl starch, concrete steps are as follows:

[0022] (1) Dilute and dissolve: add 2% hydrogen peroxide solution with a mass concentration of 50% and 15% water into a stainless steel dissolution tank at the same time, stir for 25-35 minutes to dissolve the hydrogen peroxide solution, and obtain a diluted and dissolved hydrogen peroxide solution;

[0023] (2) Mixing reaction: put 83% hydroxypropyl starch into the mixer, turn on the stirring function, add the hydrogen peroxide solution diluted and dissolved in step (1) into the mixer at a uniform speed, and finish adding in 2 hours. Stir while adding hydrogen peroxide solution, and stir to form a microstrip wet powder;

[0024] (3) Heating: Turn on the hot water in the interlayer of the mixer, keep the temperature of the hot water at 60°C, raise the temperature of the powder in step (2) to 50°C, and keep it warm for 2 hours;

[0025] (4) Drying: discharge the powder he...

Embodiment 2

[0030] A kind of preparation technology of oxidized hydroxypropyl starch, concrete steps are as follows:

[0031] (1) Dilute and dissolve: add 3% hydrogen peroxide solution with a mass concentration of 50% and 16% water into a stainless steel dissolution tank at the same time, stir for 25-35 minutes to dissolve the hydrogen peroxide solution, and obtain a diluted and dissolved hydrogen peroxide solution;

[0032] (2) Mixing reaction: put 81% hydroxypropyl starch into the mixer, turn on the stirring function, add the hydrogen peroxide solution diluted and dissolved in step (1) into the mixer at a uniform speed, and finish adding in 2.5 hours. Stir while adding hydrogen peroxide solution, and stir to form a microstrip wet powder;

[0033] (3) Heating: Turn on the hot water in the interlayer of the mixer, keep the temperature of the hot water at 60°C, raise the temperature of the powder in step (2) to 50°C, and keep it warm for 2.5 hours;

[0034] (4) Drying: discharge the powde...

Embodiment 3

[0039] A kind of preparation technology of oxidized hydroxypropyl starch, concrete steps are as follows:

[0040] (1) Dilute and dissolve: add 2% hydrogen peroxide solution with a mass concentration percentage of 50% and 18% water into a stainless steel dissolution tank at the same time, stir for 25-35 minutes to dissolve the hydrogen peroxide solution, and obtain a diluted and dissolved hydrogen peroxide solution;

[0041] (2) Mixing reaction: put 80% hydroxypropyl starch into the mixer, turn on the stirring function, add the hydrogen peroxide solution diluted and dissolved in step (1) into the mixer at a uniform speed, and add it for 2-3 hours. When finished, stir while adding hydrogen peroxide solution, and stir to form a microstrip wet powder;

[0042] (3) Heating: Turn on the hot water in the interlayer of the mixer, keep the temperature of the hot water at 60°C, raise the temperature of the powder in step (2) to 50°C, and keep it warm for 3 hours;

[0043] (4) Drying: d...

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Abstract

The invention discloses a manufacturing technique of oxidized hydroxypropyl starch. The technique comprises the following steps: (1) dilution and disliquid: simultaneously adding 2-5% of a 50 wt% oxydol liquid and 15-18% of water into a stainless steel disliquid tank, and stirring for 25-35 minutes to obtain the diluted and dissolved oxydol liquid; (2) mixing and reaction: putting 80-83% of hydroxypropyl starch into a mixer, adding the diluted and dissolved oxydol liquid into the mixer at uniform speed within 2-3 hours, and stirring to obtain the slightly wet powder; (3) heating: starting hot water in the interlayer of the mixer to heat the powder to 50 DEG C, and keeping the temperature for 2-3 hours; (4) drying: discharging the heated powder via the discharge port of the mixer, putting the powder on a tray, putting into a drying oven, regulating the temperature of the drying oven to 60 DEG C, and drying for 5-7 hours to obtain a solid material; (5) pulverization: pulverizing the obtained solid material with a universal pulverizer; and (6) packaging. The technique has the advantages of simple process, low pollution and low production cost, and is beneficial to mass production.

Description

technical field [0001] The invention relates to the field of edible auxiliary materials, in particular to a preparation process of oxidized hydroxypropyl starch. Background technique [0002] Modified starch began to develop in the middle of the nineteenth century, and has a history of 150 years. In the past 30 years, the research, production and application of modified starch have entered a stage of vigorous development, and the types of products have continued to increase. Oxidized hydroxypropyl starch is a kind of chemically modified starch, which adjusts the viscosity of starch to the required range. Its products have low gelatinization temperature, high paste liquid transparency, low viscosity, weak retrogradation and high stability. It is ideal Papermaking surface sizing agent and coating adhesive can also be used in beverage, dairy and other industries to act as a thickener, improve the taste of the product, and have good film-forming properties. Traditional thickeni...

Claims

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Application Information

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IPC IPC(8): C08B31/00C08B31/12
CPCC08B31/00C08B31/12
Inventor 陆誉升王兴宝
Owner NANTONG HONGCI PHARMA
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