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Octenyl succinic anhydride modified starch prepared through dry mechanical force induction of esterification reaction and application thereof

A technology of octenyl succinic acid and octenyl succinic anhydride, which is applied in the fields of application, edible oil/fat, and edible oil/fat components, and can solve problems such as excessive reaction, uneven reaction, and long reaction time

Inactive Publication Date: 2016-02-24
HUAZHONG AGRI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

These two methods have the defects of uneven reaction, prone to local overreaction, insufficient mechanical strength and long reaction time.

Method used

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  • Octenyl succinic anhydride modified starch prepared through dry mechanical force induction of esterification reaction and application thereof
  • Octenyl succinic anhydride modified starch prepared through dry mechanical force induction of esterification reaction and application thereof
  • Octenyl succinic anhydride modified starch prepared through dry mechanical force induction of esterification reaction and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] Example 1 The method for preparing octenyl succinic acid starch ester based on dry mechanical force induced esterification of ball milling is exemplified

[0030] 1. Raw materials and equipment: The test material is commercially available glutinous rice starch (food grade), the chemical reagents are analytically pure, purchased from a chemical reagent company, and the ball mill model is MITR-QM-QX-40L.

[0031] 2. Esterification process

[0032] (1) Mixing: take 30kg of glutinous rice starch, and spray 0.8% (accounting for starch dry base) concentration 4% NaOH solution and 4% (accounting for starch dry base) octenyl succinic anhydride in the glutinous rice starch evenly Mixed solution, stir and mix, add 120kg glutinous rice starch again, mix, the mixed material that obtains;

[0033] (2) Grinding: take ball milling beads (wherein the weight ratio of balls with a diameter of 6 mm and a diameter of 3 mm is 7:3) 100 g, put into the ball mill tank of the ball mill togethe...

Embodiment 2

[0034] Example 2 Example of the method for preparing octenyl succinic acid starch ester by dry mechanical force-induced esterification based on Raymond mill

[0035]1. Raw materials and equipment: The test material is commercially available glutinous rice starch (food grade), and the chemical reagents are all analytically pure, purchased from a chemical reagent company, and the Raymond mill model is CXLM-4R.

[0036] 2. Raymond mill esterification process

[0037] (1) material mixing: with the esterification process step (1) in embodiment 1;

[0038] (2) Grinding: Turn on the milling machine and electromagnetic vibrating feeder, adjust the speed of the main machine to 140r / min, at this time, the centrifugal force F on the grinding roller is about 3433N, the reaction temperature is 45°C, and the grinding time is 0.5h to obtain micronization Esterified starch, the measured degree of substitution is 0.0212, and the reaction efficiency is 81.58%. Calculated as follows:

[0039]...

Embodiment 3

[0041] Example 3 The impact of grinding time on the degree of substitution and reaction efficiency of octenyl succinic acid starch ester

[0042] According to the steps of Example 1 or 2, the starch octenyl succinate was prepared by ball milling or Raymond milling respectively. The effect of milling time on degree of substitution (DS) and reaction efficiency (RE) of starch octenyl succinate was studied. The determination of substitution degree and reaction efficiency refers to the method of reference (Heetal., 2006). Calculated as follows:

[0043] D S = 0.162 * ( V * M ) / W 1 - [ 0.210 * ( V * M ...

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Abstract

The invention relates to octenyl succinic anhydride modified starch prepared through dry mechanical force induction of an esterification reaction and an application thereof. A method comprises the steps: (1) adopting a secondary mixing-process material preparation method, mixing an NaOH solution and octenyl succinic anhydride with an appropriate mass ratio, to obtain an alkaline octenyl succinic anhydride solution, then sprinkling the solution on starch with an appropriate mass ratio of the solution to the starch and blending uniformly, to obtain a mixture A, and carrying out secondary uniform blending of the mixture A and starch with an appropriate mass ratio, to obtain a mixture B; and (2) putting the mixture B in a ball milling pot, and grinding under appropriate parameters to obtain micro-fine esterified starch; or placing the mixture B in a Raymond mill, and grinding under appropriate parameters to obtain micro-fine octenyl succinic anhydride modified starch. The shortcomings that materials are not easy to mix evenly and are easily subjected to a local sharp reaction in dry-process preparation of octenyl succinic anhydride modified starch are overcome, and at the same time, the shortcomings of insufficient mechanical force strength and long reaction time are overcome.

Description

technical field [0001] The invention belongs to the technical field of starch preparation, and in particular relates to the preparation of starch octenyl succinate by dry mechanical force-induced esterification and its application. Background technique [0002] Octenyl succinic acid starch ester (OSAstarch) is usually the product obtained by the esterification reaction of starch with octenyl succinic anhydride (OSA) under weakly alkaline conditions. The US Food and Drug Administration (FDA) allows only starch octenyl succinate starch esters to be used in food. [0003] According to the proportion of moisture in the processing process, there are currently two methods for preparing starch octenyl succinate at home and abroad: wet method and dry method. Among them, the wet method is to disperse starch in water or organic solvents to prepare starch with a certain concentration. Milk (25%-45%), add lye (basic organic solvent or inorganic alkali solution) to adjust the pH of the ...

Claims

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Application Information

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IPC IPC(8): C08B31/04A23D7/005A23D9/007A23G9/34
Inventor 赵思明熊善柏熊礼橙陈勉
Owner HUAZHONG AGRI UNIV
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