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Modified starch prepared through cassava starch instead of potato starch and production technology thereof

A technology for cassava modified starch and potato starch, which is applied in the field of fine chemicals, can solve the problems that the water retention, viscosity and anti-aging properties of potato starch cannot be achieved, the processing cost of the papermaking industry is increased, and the price of potato starch is high. Good aging performance and strong water retention effect

Active Publication Date: 2016-03-16
东莞建泰生物科技有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the raw material price of potato starch is relatively high. The current unit price of potato starch in the market is 7000-9000 yuan / ton, which is relatively high. In the paper industry, it is usually necessary to add starch to the pulp for paper making, which increases the processing of the paper industry. cost, the use of potato starch has high limitations
[0003] The unit price of cassava starch on the market is 2000-4000 yuan / ton, and the price of starch is relatively low. However, the quality of existing cassava starch is poor, and it cannot achieve the water retention, viscosity and anti-aging performance of potato starch, and its application is also limited.

Method used

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  • Modified starch prepared through cassava starch instead of potato starch and production technology thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0050] The modified starch prepared by replacing potato starch with tapioca starch includes the following raw materials by weight:

[0051] 100 servings of tapioca starch

[0052] 0.5 part of N-phosphoryl-N-methylimidazole

[0053] 0.5 parts of salicyl phosphate

[0054] 0.5 part of N-Benzoyl Ammonium Phosphate

[0055] 1.8 parts of vinyl acetate mixture

[0056] 0.8 parts of sodium bisulfate.

[0057] The tapioca starch is fresh tapioca starch, ash content is 0.18%, moisture content is 12%, acidity is 12, fineness is 99%, whiteness is 85%, viscosity is 600BU, and phosphorus content is 0.01%.

[0058] The production process of modified starch prepared by using tapioca starch instead of potato starch includes the following processing steps:

[0059] Step (1), mix the tapioca starch with water, stir evenly, the mass ratio of tapioca starch to water is 1:1, add dilute caustic soda to adjust the pH to 10.8, keep the temperature at 35°C, and the mass concentration of dilute caustic soda to 3%;

...

Embodiment 2

[0064] The modified starch prepared by replacing potato starch with tapioca starch includes the following raw materials by weight:

[0065] 100 servings of tapioca starch

[0066] 1 part of N-phosphoryl-N-methylimidazole

[0067] 1 part of salicyl phosphate

[0068] 1 part of N-benzoyl ammonium phosphate

[0069] 2 parts of vinyl acetate mixture

[0070] 1 part of sodium bisulfate.

[0071] The tapioca starch is fresh tapioca starch, ash content is 0.19%, moisture content is 13%, acidity is 13, fineness is 99.2%, whiteness is 86%, viscosity is 650BU, and phosphorus content is 0.01%.

[0072] The production process of modified starch prepared by using tapioca starch instead of potato starch includes the following processing steps:

[0073] Step (1), mix the tapioca starch with water, stir evenly, the mass ratio of tapioca starch to water is 1:1.1, add dilute caustic soda to adjust the pH to 10.9, keep the temperature at 38°C, and the mass concentration of dilute caustic soda is 3%;

[0074] S...

Embodiment 3

[0078] The modified starch prepared by replacing potato starch with tapioca starch includes the following raw materials by weight:

[0079] 100 servings of tapioca starch

[0080] 1.5 parts of N-phosphoryl-N-methylimidazole

[0081] 1.5 parts of salicyl phosphate

[0082] 1.5 parts of N-Benzoyl Ammonium Phosphate

[0083] 2.2 parts of vinyl acetate mixture

[0084] 1.2 parts of sodium bisulfate.

[0085] The tapioca starch is fresh tapioca starch, ash content is 0.2%, moisture content is 14%, acidity is 14, fineness is 99.3%, whiteness is 87%, viscosity is 700BU, and phosphorus content is 0.02%.

[0086] The production process of modified starch prepared by using tapioca starch instead of potato starch includes the following processing steps:

[0087] Step (1), mix the tapioca starch with water, stir evenly, the mass ratio of tapioca starch to water is 1:1.2, add dilute caustic soda to adjust the pH to 11.0, keep the temperature at 40℃, and the mass concentration of dilute caustic soda is 3...

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Abstract

The invention relates to the technical field of fine chemical engineering, in particular to modified starch prepared through cassava starch instead of potato starch and a production technology thereof. The production technology comprises the following steps that cassava starch and water are mixed and stirred to be uniform, the mass ratio of the cassava starch to the water is 1:1-1.2, diluted caustic soda is added to adjust the pH to be 10.8-11.0, and the temperature of 35-45 DEG C is kept constant; N-phosphoryl-N-methylimidazole, salicylo-phosphate and N-benzoyl ammonium phosphate are added to be subjected to a reaction for 4-6 h; the temperature is decreased to 35-36 DEG C, diluted acid is added to adjust the pH to be 10.2-10.5, and then a vinyl acetate monomer mixed solution is added to be subjected to a reaction for 1-3 h; sodium hydrogen sulfate and diluted acid are added to adjust the pH to be 5.6-5.8, rotational flow washing is performed, and dewatering and drying are performed to obtain the cassava modified starch. The production technology of the modified starch is simple and mature, the production cost is low, and the obtained cassava modified starch has the good water-retaining property, viscosity and ageing resistance.

Description

technical field [0001] The invention relates to the technical field of fine chemicals, in particular to modified starch prepared by substituting tapioca starch for potato starch and a production process thereof. Background technique [0002] Potatoes are rich in nutrients. Fresh potato tubers contain about 20% carbohydrates, about 2% protein, about 1% inorganic salts and rich vitamin C (40mg / 100g), which is a food resource with more comprehensive nutrients. Potato starch has good quality and is widely used in food industry, pharmaceutical industry and chemical industry. However, the raw material price of potato starch is relatively high. The current unit price of potato starch in the market is 7000-9000 yuan / ton, which is relatively high. In the paper industry, it is usually necessary to add starch to the pulp for paper making, which increases the processing of the paper industry. Cost, the use of potato starch has high limitations. [0003] The unit price of cassava starc...

Claims

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Application Information

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IPC IPC(8): C08B31/04C08B31/06
CPCC08B31/04C08B31/066
Inventor 李向东
Owner 东莞建泰生物科技有限公司
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