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Preparation method and application of modified starch polysaccharide derivative

A technology of starch polysaccharides and derivatives is applied in the field of starch processing, which can solve the problems that are not involved, and achieve the effects of improving performance and taste, excellent bonding performance, and white appearance and color.

Active Publication Date: 2022-06-07
HANGZHOU PAPERMATE SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] In summary, in the above-mentioned prior art, the preparation process of various hydroxypropyl oxidation modified starch polysaccharide derivatives is introduced, however, in the above-mentioned patent, there is no It involves the use of enzyme pretreatment and further modification on the basis of oxidized hydroxypropyl starch to carry out more in-depth cross-linking, esterification, emulsification and other means to obtain a more widely used food additive material

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  • Preparation method and application of modified starch polysaccharide derivative

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preparation example Construction

[0044] A method for preparing modified starch polysaccharide derivatives, comprising the following steps:

[0045](A) 35-45wt% starch, 5.0-12.0wt% of anti-gelling agent and a residual amount of water mixed to prepare a starch slurry, and then adjust the slurry pH with alkali to 7.5-10.5, add starch 0.005-0.02wt% of the mixed enzyme, the reaction, to obtain an enzyme-modified starch slurry.

[0046] Preferably, the starch is plantain taro starch, tapioca starch, sago starch, potato starch, corn starch and high-branched chain waxy corn starch in one or both kinds; If it is two starches, the mass ratio is 0.8-1.2:1. The gelling agent is sodium chloride, sodium sulfate and potassium citrate in one or more. The mixture of enzymes is a mixture of proteases and lipases with a mass ratio of 1:1-5, the viability unit of protease is 80000-100000U / g, the viability unit of lipase is 8000-10000U / g.

[0047] (B) The pH of the enzyme-modified starch slurry obtained with alkali regulation ste...

Embodiment 1

[0055] A, first dissolve 65g of sodium chloride in 1400g of deionized water, and then slowly add 1:1 tapioca starch and 1000g of plantain taro starch, formulated into a pulp, and then use 3.5% sodium hydroxide solution to adjust the pH value of the slurry to 8.5-8.7, add 1:2 mixed enzyme 0.08g (including protease activity unit 90000u / g, lipase vitality unit 8500u / g), control the pH value and react for 2h to complete.

[0056] B. Continue to adjust the pH of the starch slurry with 3.5% sodium hydroxide alkali to 10.8-11.0, and heat up to 28.5 °C, add 42g of propylene oxide, carry out a 20h hydroxypropyl etheration reaction, and then add 35g of sodium hypochlorite (content 10.0%) solution for 2h reaction, the process uses Braband to test the peak viscosity of 250-300BU.

[0057] C. After the completion of the reaction, 0.6g of OSA and 0.85g of sodium trimeta phosphate were added, and the synchronous esterification and crosslinking treatment were 2.5h, and the pH of the control syste...

Embodiment 2

[0060] A, first dissolve 90g of sodium sulfate in 1300g of deionized water, and then slowly add 1000g of high-branched glutinous corn starch, formulated into a pulp, and then use 3.0% sodium hydroxide solution to adjust the pH of the slurry to between 8.8-9.0, add 1:2 mixed enzyme 0.07g (of which protease activity unit 90000u / g, lipase activity unit 8500u / g), control the pH value and react for 2h to complete.

[0061]B. Continue to adjust the pH of the starch slurry with 3.0% sodium hydroxide alkali to 11.0-11.2, and heat up to 30 °C, add 55g of propylene oxide, carry out a 20h hydroxypropyl etherification reaction, and then add 22g of hydrogen peroxide (content 27.5%) of the solution, carry out a 1.5h reaction, the process uses Braband to test the peak viscosity of 220-350BU.

[0062] C. After the completion of the reaction, 0.5g of OSA and 0.95g of sodium trimeta phosphate were added, and the synchronous esterification and crosslinking treatment were 2.0h, and the pH of the cont...

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Abstract

The invention relates to the field of starch processing, and discloses a preparation method and application of a modified starch polysaccharide derivative, and the method comprises the following steps: (A) preparing starch slurry from starch, water and an anti-gelling agent, and carrying out alkali activation to carry out mixed enzyme modification; (B) heating under an alkaline condition, and sequentially adding epoxypropane and an oxidizing agent to carry out hydroxypropyl etherification and oxidation reaction; (C) adding octenyl succinic anhydride and sodium trimetaphosphate for esterification and cross-linking reaction to obtain coarse slurry; and (D) adjusting the coarse pulp to be acidic, adding unsaturated fatty acid grease, drying, and storing in a sealed manner to obtain the modified starch polysaccharide derivative. The modified starch polysaccharide derivative prepared by the invention has the characteristics of pure white powder appearance color, low protein, low fat, high concentration and low viscosity of cold and hot paste liquid, excellent bonding performance and the like, can replace a traditional thickening agent to be used in the field of food processing, and can also improve and enhance the texture performance and taste of food.

Description

Technical field [0001] The present invention relates to the field of starch processing, in particular to a modified starch polysaccharide derivative preparation method and application thereof. Background [0002] Polysaccharides are formed by the condensation and dehydration of multiple monosaccharide molecules, which is a class of carbohydrates with complex molecular structure and large amounts. It is generally believed that all carbohydrates and their derivatives that conform to the concept of polymer compounds can be called polysaccharides. Polysaccharides are widely distributed in nature, some are constituent components of the cell wall of animals and plants, such as peptidoglycans and cellulose, some are nutrients stored as animals and plants, such as glycogen and starch, and some have special biological activity, like polysaccharides in the cell wall of pneumococcal bacteria in the human body have antigenic effects. The structural unit of polysaccharides is monosaccharides,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08B31/00C08B31/04C08B31/18C08B31/12A23L29/30A23L29/212
CPCC08B31/006C08B31/04C08B31/185C08B31/12C08B31/00A23L29/212A23L29/35A23V2002/00A23V2200/242A23V2200/22A23V2250/51
Inventor 姚臻郑丽萍姚献平杨勇
Owner HANGZHOU PAPERMATE SCI & TECH
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