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Production method of granular cold-water-soluble starch

A production method and soluble technology are applied in the production field of granular cold water soluble starch, which can solve the problems of industrial waste water generation, insufficient environmental protection, high cost and the like, and achieve the effects of less waste water, easy operation and low cost.

Inactive Publication Date: 2019-03-29
HENAN ZHENGHONG PHARMA ADJUVANT CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But looking at these disclosed methods, the process is often complicated, the cost is high, and a large amount of industrial wastewater will be generated during the preparation process, which is not green enough.

Method used

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  • Production method of granular cold-water-soluble starch

Examples

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Comparison scheme
Effect test

Embodiment 1

[0031] A production method of granular cold water soluble starch, comprising the following steps:

[0032] (1) Acidification

[0033] Get 100g edible grade cornstarch and add in the mixer, then mist-spray into 1000ml of hydrochloric acid with a mass concentration of 10% and mix for 5min to prepare acidified cornstarch;

[0034] (2) fermentation

[0035] Put the acidified cornstarch prepared above into a container or a starch bag and ferment at 25°C for 7 hours to obtain fermented cornstarch;

[0036] (3) washing

[0037] The fermented cornstarch was washed twice with ethanol with a mass concentration of 85% in the washing tank for sedimentation, and then neutralized by adding sodium hydroxide solution until the pH value was 5.0 to obtain modified cornstarch;

[0038] (4) centrifugation and drying

[0039] The modified cornstarch prepared above is placed in a centrifuge and centrifuged at a centrifugal speed of 800r / min for 60min, then placed in a dryer at 100°C for flash d...

Embodiment 2

[0042] A production method of granular cold water soluble starch, comprising the following steps:

[0043] (1) Acidification

[0044] Get 100g of food grade wheat starch and add it into the mixer, then spray it into 900ml of hydrochloric acid with a mass concentration of 10% and mix for 5.5min to prepare acidified wheat starch;

[0045] (2) fermentation

[0046] Put the acidified wheat starch prepared above into a container or a starch bag and ferment at 26° C. for 7 hours to obtain fermented wheat starch;

[0047] (3) washing

[0048] Washing the fermented wheat starch in a washing tank twice with ethanol with a mass concentration of 85% for sedimentation, and then adding potassium hydroxide solution to neutralize until the pH value is 5.5 to obtain modified wheat starch;

[0049] (4) centrifugation and drying

[0050] The modified wheat starch prepared above is placed in a centrifuge and centrifuged at a centrifugal speed of 850r / min for 50min, then placed in a dryer at 10...

Embodiment 3

[0053] A production method of granular cold water soluble starch, comprising the following steps:

[0054] (1) Acidification

[0055] Get 100g of food grade mung bean starch and add it into the mixer, then spray it into 800ml of hydrochloric acid with a mass concentration of 10.5% and mix for 5.5min to obtain acidified mung bean starch;

[0056] (2) fermentation

[0057] Put the acidified mung bean starch prepared above into a container or a starch bag and ferment for 6.5 hours at 27°C to obtain fermented mung bean starch;

[0058] (3) washing

[0059] Washing the fermented mung bean starch with ethanol with a mass concentration of 85% in the washing tank for 3 times for sedimentation, and then adding sodium bicarbonate solution to neutralize to a pH value of 6 to obtain modified mung bean starch;

[0060] (4) centrifugation and drying

[0061] The modified mung bean starch prepared above is placed in a centrifuge and centrifuged at a centrifugal speed of 900r / min for 40mi...

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Abstract

The invention belongs to the technical field of production of starch and discloses a production method of granular cold-water-soluble starch. The method mainly includes: 1) feeding starch into a mixerand atomizing and spraying hydrochloric acid into the starch with uniform mixing to make acidified starch; 2) placing the acidified starch into a container or starch bag to perform fermentation; 3) washing the fermented starch in a washing pool for settlement, and adding an alkali solution for neutralization, thus obtaining modified starch; 4) centrifugally separating the modified starch in a centrifuge, flash-drying the modified starch in a drying machine, and sieving the modified starch to prepare the granular cold-water-soluble starch. The production method is simple in process and low incost, is safe and environment-friendly, is easy to carry out and apply in large scale, only needs normal temperature and pressure and is low in energy consumption. The granular cold-water-soluble starch has excellent performance and high granule completeness. Dissolution rate of the product in cold water can reach 98% at most.

Description

technical field [0001] The invention belongs to the technical field of starch production, and in particular relates to a production method of granular cold water-soluble starch. Background technique [0002] As a new type of modified starch, cold water soluble starch can be directly dissolved in cold water to form a paste because it avoids cooking operation during use. It has been widely used in food, medicine, chemical industry, feed, casting, oil drilling, textile and paper making and other fields. The existing cold water soluble starch is mainly divided into pregelatinized starch and granular cold water soluble starch, and the granular cold water soluble starch has higher gloss, good viscoelasticity, and paste made with original starch after rehydration. They are basically the same in nature and are loved and paid attention to by people. [0003] At present, there are mainly four types of preparation technologies for granular cold water soluble starch: [0004] 1. Doub...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08B30/12
CPCC08B30/12
Inventor 刘孟亚王丽红胡晓蒙申永花
Owner HENAN ZHENGHONG PHARMA ADJUVANT CO LTD
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