Preparation method of biological film mono non-staple-food composite modified hydrophobic starch

A hydrophobic starch and biofilm technology, applied in the field of modified starch, can solve the problems of poor dispersibility of modified starch, difficult modification process, incomplete starch modification, etc., and achieves strong hydrophobicity, simple preparation method, Mild effect of preparation conditions

Inactive Publication Date: 2017-05-31
ANHUI RUIYAN NEW MATERIAL TECH RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to solve the shortcomings of incomplete starch modification in the prior art, poor dispersibility of the obtained modified starch, and difficult modification process, etc., and proposes a biofilm single non-staple food composite modified hydrophobic starch preparation method

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] A kind of biofilm single non-staple food compound modified hydrophobic starch preparation method proposed by the present invention comprises the following steps:

[0019] S1. The starch is dried by hot air circulation at 35°C to obtain dry starch with a moisture content of 10%;

[0020] S2, according to the mass ratio of 1:0.3:0.5, the dry starch obtained in step S1 and triglyceride, succinate are jointly added in the grinder, grind three times, each grinding 10min, until mixing evenly;

[0021] S3, according to the mass ratio of 1:4, dissolve the uniformly mixed starch in step S2 in the ethanol solution, add a NaOH solution with a concentration of 20%, adjust the pH to 10, and add hexamethyldisilazide 0.2 times the amount of starch alkane, heated to 70°C, and stirred at a high speed at a speed of 300r / min while heating, and after stirring for 32min, a starch solution was obtained;

[0022] S4, the starch solution obtained in the step S3 utilizes the osmosis of the bio...

Embodiment 2

[0024] A kind of biofilm single non-staple food compound modified hydrophobic starch preparation method proposed by the present invention comprises the following steps:

[0025] S1. The starch is dried by hot air circulation at 45°C to obtain dry starch with a moisture content of 8%;

[0026] S2, according to the mass ratio of 1.2:0.4:0.3, the dry starch obtained in step S1 and triglyceride, succinate are jointly added in the grinder, grind three times, grind 8min each time, until mixing evenly;

[0027] S3, according to the mass ratio of 0.8:4.2, dissolve the uniformly mixed starch in step S2 in the ethanol solution, add a NaOH solution with a concentration of 20%, adjust the pH to 8.8, and add hexamethyldisilazide 0.18 times the amount of starch alkane, heated to 68°C, and stirred at a high speed at a speed of 200r / min while heating, and after stirring for 35min, a starch solution was obtained;

[0028] S4, the starch solution obtained in step S3 utilizes the osmosis of bio...

Embodiment 3

[0030] A kind of biofilm single non-staple food compound modified hydrophobic starch preparation method proposed by the present invention comprises the following steps:

[0031] S1. The starch is dried by hot air circulation at 30°C to obtain dry starch with a moisture content of 2%;

[0032] S2, according to the mass ratio of 1.2:0.25:0.6, the dry starch obtained in step S1 and triglyceride, succinate are jointly added in the grinder, grind three times, grind 12min each time, until mixing evenly;

[0033] S3, according to the mass ratio of 1.2:4, dissolve the uniformly mixed starch in step S2 in the ethanol solution, add a NaOH solution with a concentration of 20%, adjust the pH to 9.2, and add hexamethyldisilazide 0.32 times the amount of starch alkane, heated to 50°C, and stirred at a high speed at a speed of 400r / min while heating, and after stirring for 30min, a starch solution was obtained;

[0034] S4, the starch solution obtained in the step S3 utilizes the osmosis of...

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PUM

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Abstract

The invention discloses a preparation method of biological film mono non-staple-food composite modified hydrophobic starch. The preparation method comprises the following steps: cyclically drying starch with hot air; adding dry starch, triglyceride and succinate into a grinding machine together; grinding until the materials are uniformly mixed; dissolving the uniformly mixed starch into an ethanol solution; adjusting the pH (Potential of Hydrogen) value and adding hexamethyldisilazane; heating and stirring to obtain a starch solution; carrying out starch molecule diffusion and transportation on the starch solution under the permeation effect of a biological film; and after finishing transportation, carrying out precipitation, filtering and vacuum drying treatment to obtain the composite modified hydrophobic starch. According to the preparation method of the biological film mono non-staple-food composite modified hydrophobic starch, disclosed by the invention, the used raw materials are simple and easy to obtain and the preparation method is simple; preparation conditions are moderate and the preparation method is safe and environmentally friendly and is suitable for industrialized production; the prepared composite modified hydrophobic starch has stable performances, a high hydrophobic capability, good dispersity and solubility and high reaction efficiency, and can be widely applied.

Description

technical field [0001] The invention relates to the technical field of modified starch, in particular to a preparation method of biofilm single non-staple food composite modified hydrophobic starch. Background technique [0002] Starch can be regarded as a high polymer of glucose. In addition to food, it is used industrially to make dextrin, maltose, glucose, alcohol, etc., and is also used to prepare printing paste, textile sizing, paper sizing, and pharmaceutical tablets. suppression etc. It can be extracted from starchy substances such as corn, sweet potatoes, wild acorns and kudzu root. The starch industry is an important follow-up industry of agricultural products. In recent years, my country's starch industry has shown a sustained and good development trend, whether it is the growth of total volume and speed, the adjustment of industrial structure and product structure, the application of new technologies and new equipment, or the improvement of enterprise scale, eco...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08B31/04
CPCC08B31/04
Inventor 王举孙益民芮定文
Owner ANHUI RUIYAN NEW MATERIAL TECH RES INST
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