Preparation method of starch octenyl succinate

A technology of octenyl succinic acid and starch ester, which is applied in the field of starch processing, can solve the problems of low production efficiency, complicated process, and environmental pollution of octenyl succinic acid starch ester, and achieve good emulsifying properties, high reaction efficiency, and no Effects of Environmental Pollution

Inactive Publication Date: 2012-01-04
HARBIN UNIV OF COMMERCE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The purpose of the present invention is to solve the problems of low production efficiency, long time-consuming, complex process and serious environmental pollution of octenyl succinate starch ester at present, and provide a fast, efficient, energy-saving and environmentally friendly preparation with high whiteness and good stability. The production method of octenyl succinic acid starch ester with strong hydrophilicity, anti-aging and good embedding effect

Method used

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Examples

Experimental program
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specific Embodiment approach 1

[0032] Specific embodiment one: present embodiment octenyl succinic acid starch ester is prepared according to the following steps: one, accurately weigh 50 g of cornstarch (dry basis), mix with appropriate amount of distilled water, be mixed with 30% (w / w) starch emulsion; Two, control reaction temperature and stirring speed with constant temperature magnetic stirrer, application concentration is that the sodium hydroxide solution of 3% (w / w) emulsion pH value is adjusted to 8.5, and wherein reaction temperature is 30 ℃, and stirring speed is 100rpm; Three 1. Dilute octenyl succinic anhydride with absolute ethanol, and the volume ratio of octenyl succinic anhydride to absolute ethanol is 1:2; 4. Slowly add octenyl succinic anhydride diluted with absolute ethanol to the starch emulsion , added within 30min, the amount of octenyl succinic anhydride is 3% of the dry starch quality; five, the sodium hydroxide solution with a concentration of 3% (w / w) is used to adjust the pH value...

specific Embodiment approach 2

[0033]Specific embodiment two: the difference between this embodiment and specific embodiment one is: starch is rice starch in step one, mixes with appropriate amount of distilled water, is mixed with 35% (w / w) starch suspension; In step two, use The concentration is 3% (w / w) sodium hydroxide solution to adjust the pH value of the suspension to 8, wherein the reaction temperature is 30 ° C, and the stirring speed is 150 rpm; in step 4, slowly add the applied anhydrous The octenyl succinic anhydride diluted with ethanol is added within 10min, wherein the octenyl succinic anhydride amount is 2% (w / w) of the absolute dry starch quality; step 5 regulates the system pH value to pH to be 8; step 7 will Put the packaged product into the ultra-high pressure equipment for pressure treatment, the treatment pressure is 200MPa, the ultra-high pressure treatment time is 60min, and the synergistic temperature of the ultra-high pressure reaction is 15°C; in step 8, adjust the pH value of the ...

specific Embodiment approach 3

[0034] Specific embodiment three: the difference between this embodiment and specific embodiment one is: in step one, starch is potato starch, mixes with appropriate amount of distilled water, is mixed with 10% (w / w) starch emulsion; Adjust the pH value of the emulsion to 9 with the sodium solution, wherein the reaction temperature is 40°C, and the stirring speed is 50rpm; step 4, slowly add octenyl succinic anhydride diluted with absolute ethanol, and finish adding within 40 minutes, wherein the octenyl succinic anhydride The amount is 1% (w / w) of the absolute dry starch quality; Step 5 adjusts the pH value of the system to pH 9; Step 7 puts the packaged product into an ultra-high pressure device for pressurization treatment, and the processing pressure is 500MPa. The high-pressure treatment time is 10 minutes, and the synergistic temperature of the ultra-high pressure reaction is 20° C.; in step eight, the pH value of the system is adjusted to 6.5; other steps and parameters ...

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Abstract

The invention provides a preparation method of starch octenyl succinate, which aims to solve the problems that the existing preparation methods of starch octenyl succinate have low production efficiency, long time, complicated process, severe environmental pollution and the like. The preparation method sequentially comprises the following steps of: 1) preparing a starch suspension; 2) adjusting the pH value of the starch suspension; 3) diluting octenyl succinic anhydride; 4) adding diluted octenyl succinic anhydride to the starch suspension; 5) adjusting the pH value of the system; 6) rapidlyadding emulsion to a soft packaging bag; 7) placing the soft packaging bag in ultrahigh-pressure equipment for pressurizing; 8) adjusting the pH value to 6.0-6.5; 9) washing away unreacted anhydride;and 10) drying the product, pulverizing and screening to obtain the starch octenyl succinate. The preparation method has the advantages of uniform reaction, simple production process, no environmental pollution and low production cost; and by the preparation method, the reaction time is greatly shortened, the reaction time of the traditional water phase method is shortened to 10-60 minutes from 6hours, and the production efficiency is greatly improved.

Description

Technical field: [0001] The invention relates to the technical field of starch processing, in particular to a preparation method of starch octenyl succinate. Background technique: [0002] Starch octenyl succinate, also known as octenyl succinic acid esterified starch, octenyl succinic acid esterified starch, pure gum, generally exists in the form of sodium starch octenyl succinate, is a safe It is a high-performance emulsifying thickener, which has been approved for use by major countries in the United States, Europe and the Asia-Pacific region. Evaluation by the Food and Agriculture Organization of the United Nations and the World Health Organization: The daily allowance can be used in food without special regulations, and the scope of use is not limited. The Chinese government approved the modified starch as a food additive in 1997, and in 2001 approved to expand the scope of use of this product in food, and the dosage can be added according to demand without control. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08B31/04
Inventor 孟爽刘天一晏祖根李德溥卜迟武张莉
Owner HARBIN UNIV OF COMMERCE
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