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Modified starch prepared by substituting tapioca starch for potato starch and its production process

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: 2018-01-05
东莞建泰生物科技有限公司
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  • Summary
  • 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 by substituting tapioca starch for potato starch and its production process

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0050] The modified starch prepared by substituting tapioca starch for potato starch comprises the following raw materials in parts by weight:

[0051] Tapioca starch 100 parts

[0052] N-phosphoryl-N-methylimidazole 0.5 parts

[0053] Salicyl Phosphate 0.5 parts

[0054] N-benzoyl ammonium phosphate 0.5 parts

[0055] Vinyl acetate mixture 1.8 parts

[0056] Sodium bisulfate 0.8 parts.

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

[0058] The production technology of the modified starch prepared by substituting tapioca starch for potato starch comprises the following processing steps:

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

Embodiment 2

[0064] The modified starch prepared by substituting tapioca starch for potato starch comprises the following raw materials in parts by weight:

[0065] Tapioca starch 100 parts

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

[0067] Salicyl Phosphate 1 part

[0068] 1 part N-benzoyl ammonium phosphate

[0069] 2 parts vinyl acetate mixture

[0070] Sodium bisulfate 1 part.

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

[0072] The production technology of the modified starch prepared by substituting tapioca starch for potato starch comprises the following processing steps:

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

Embodiment 3

[0078] The modified starch prepared by substituting tapioca starch for potato starch comprises the following raw materials in parts by weight:

[0079] Tapioca starch 100 parts

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

[0081] Salicyl Phosphate 1.5 parts

[0082] N-benzoyl ammonium phosphate 1.5 parts

[0083] Vinyl acetate mixture 2.2 parts

[0084] Sodium bisulfate 1.2 parts.

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

[0086] The production technology of the modified starch prepared by substituting tapioca starch for potato starch comprises the following processing steps:

[0087] Step (1), mix tapioca starch and water, stir evenly, the mass ratio of tapioca starch and water is 1: 1.2, add dilute caustic soda to adjust the pH to 11.0, keep warm at 40°C, and the mass concentratio...

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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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Patent Type & Authority Patents(China)
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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