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Preparation method of food grade high viscosity sodium carboxymethyl starch

A technology of sodium carboxymethyl starch and food grade is applied in the field of preparation of food additives, which can solve the problems of poor uniformity, transparency and solubility, poor product performance, limited product grade, etc. The effect of sexual improvement and product level improvement

Active Publication Date: 2011-11-02
HUBEI DAYA BIOLOGICAL TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The earliest industrial production of CMS is the water medium method. This method is relatively old. The performance of the obtained product is not good enough, the uniformity, transparency and solubility are not good, and the viscosity is low, which limits the product grade.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] ①Take 250kg of potato starch, spray a sodium alginate solution with a mass percentage concentration of 2% on the surface of the potato starch, control its moisture content at 15%, and freeze the starch at -8°C for 12 hours, then take it out with a mass percentage Soak in 500 kg of 95% ethanol solution for 2 hours, then centrifuge, and set aside;

[0020] ②Start stirring under the protection of nitrogen, pump 400kg of ethanol solution with a mass percentage concentration of 86% into the reactor, take 250kg of starch treated in ① into the reactor, heat up to 50°C, and make starch milk;

[0021] ③ Take 600kg of ethanol solution with a mass percentage concentration of 86% in another reactor, add 112kg of NaOH, stir to make it fully dissolve;

[0022] ④Add the solution prepared by ③ into ② continuously, then add 120kg chloroacetic acid (dissolved in 200kg mass percentage concentration 86% ethanol solution), react for 3h, centrifuge, wash with mass percentage concentration 86...

Embodiment 2

[0025] ①Take 250kg of potato starch, spray 3% sodium alginate solution on the surface of potato starch, control its moisture content at 20%, freeze the starch at -4°C for 12 hours, and then use 95% Soak in 750 kg of ethanol solution for 2 hours and centrifuge for later use.

[0026] ②Start stirring under the protection of nitrogen, pump 400kg of ethanol solution with a mass percentage concentration of 86% into the reactor, take the starch treated in ① into the reactor, heat up to 45°C, and make starch milk;

[0027] ③ Take 600kg of ethanol solution with a mass percentage concentration of 86% in another reactor, add 112kg of NaOH, stir to make it fully dissolve;

[0028] ④Add the solution prepared by ③ into ② continuously, then add 120kg chloroacetic acid (dissolved in 200kg mass percentage concentration 86% ethanol solution), react for 3h, centrifuge, wash with mass percentage concentration 86% ethanol solution, and then centrifuge After separation and drying, a product with ...

Embodiment 3

[0031] ①Take 250kg of potato starch, spray 1% sodium alginate solution on the surface of potato starch, control its moisture content at 10%, freeze the starch at -6°C for 12 hours, and then use 95% Soak in 600kg of ethanol solution for 2 hours, centrifuge, and set aside;

[0032] ②Start stirring under the protection of nitrogen, pump 400kg of ethanol solution with a mass percentage concentration of 86% into the reactor, take the starch treated in ① into the reactor, heat up to 45°C, and make starch milk;

[0033] ③ Take 600kg of ethanol solution with a mass percentage concentration of 86% in another reactor, add 112kg of NaOH, stir to make it fully dissolve;

[0034] ④Add the solution prepared by ③ into ② continuously, then add 120kg chloroacetic acid (dissolved in 200kg mass percentage concentration 86% ethanol solution), react for 3h, centrifuge, wash with mass percentage concentration 86% ethanol solution, and then centrifuge After separation and drying, a product with goo...

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PUM

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Abstract

The invention provides a preparation method of food grade high viscosity sodium carboxymethyl starch. Starch and chloroacetic acid undergo a bimolecular nucleophilic substitution reaction under alkaline conditions to produce a food grade high viscosity sodium carboxymethyl starch product. In the invention, through a solvent method, an alkalization process and an etherification process on starch can be carried out in slurry in the presence of an organic solvent as a reaction medium and through a refrigeration process on starch at low temperature, the infiltration and the penetration of starch in material liquid are promoted and a reaction speed, a main reaction rate, product properties of uniformity, transparency and solubility, and a product grade are improved.

Description

technical field [0001] The invention relates to a preparation method of a food additive, in particular to a preparation method of food-grade high-viscosity carboxymethyl starch sodium. Background technique [0002] Food-grade high-viscosity carboxymethyl starch sodium (CMS), is a polyanionic polymer substance, it has the characteristics of odorless, tasteless, non-toxic, non-mildew, non-flammable, soluble in cold water to become transparent viscous The solution integrates thickening, suspending, emulsifying, stabilizing, shape-preserving, film-forming, puffing, anti-corrosion and fresh-keeping and other functions in one. CMS as a food additive has the following advantages: [0003] (1) CMS has multifunctional characteristics: high degree of substitution and high viscosity CMS has the functions of salt resistance, acid resistance, thickening, suspension, stability, and water holding. As an etherified polymer polyanion compound, it is effective for hypertension, For patients...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08B31/12A23L1/03A23L1/0522A23L3/3562A23L29/00
Inventor 陈学俊徐振明张恒凤邹春梅徐济明
Owner HUBEI DAYA BIOLOGICAL TECH CO LTD
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