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Method for preparing high emulsibility wheat mucedin

A wheat gluten protein and emulsifying technology, applied in vegetable protein processing and other directions, can solve the problems of large amount of modifying reagent, high production cost, expensive acetylation reagent, etc., improve emulsifying ability and emulsifying stability, reduce surface Tension, the effect of increasing electronegativity

Inactive Publication Date: 2008-10-15
上海天之冠可再生能源有限公司
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  • Abstract
  • Description
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  • Application Information

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Problems solved by technology

However, the above method has the disadvantages that the price of the acetylation reagent used is relatively expensive, the amount of the modification reagent is large, and the production cost is relatively high.

Method used

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  • Method for preparing high emulsibility wheat mucedin

Examples

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Comparison scheme
Effect test

Embodiment 1

[0026] Take by weighing 50g raw material wheat gluten protein, with 0.1mol / L H 2 SO 4 The solution is configured as a suspension with a mass fraction of 5%, heat-preserved and stirred at 80°C for 1 hour, cooled to 55°C, adjusted to 8.5 with 2mol / L NaOH, and added with 2.5g of sodium tripolyphosphate. During the reaction, use the same alkali The pH value of the solution to control the phosphorylation reaction is 8.5, the phosphorylation reaction time is 1h, and 1mol / L H 2 SO 4 The solution is neutralized to neutral, washed, dehydrated and dried to obtain the product.

Embodiment 2

[0028] Take by weighing 50g raw material wheat gluten protein, with 0.3mol / L H 2 SO 4 The solution is configured as a suspension with a mass fraction of 8%, heat-preserved and stirred at 70°C for 1.5h, cooled to 30°C, adjusted to pH 8.5 with 2mol / L KOH, added 10g of sodium tripolyphosphate, and used the same base during the reaction The pH value of the solution control phosphorylation reaction is 8.5, the phosphorylation reaction time is 1.5h, 1mol / L H 2 SO 4 The solution is neutralized to neutral, washed, dehydrated and dried to obtain the product.

Embodiment 3

[0030] Weigh 50g of raw wheat gluten, prepare a suspension with a mass fraction of 3% with 0.5mol / L HCl solution, heat and stir at 90°C for 0.5h, cool to 45°C, and add 2mol / L Na 2 CO 3 Adjust the pH value of the solution to 8.5, add 4.0g sodium tripolyphosphate, use the same alkali solution to control the pH value of the phosphorylation reaction to 8.5 during the reaction, the phosphorylation reaction time is 2h, neutralize to neutral with 1mol / L HCl solution, wash , dehydrated and dried to obtain the product.

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Abstract

A process for preparing the wheat gluten protein with high emulsifying performance includes such steps as using acid solution to prepare the suspension of wheat gluten protein, heating to 60-90 deg.C, stirring, cooling to 30-55 deg.C, regulating pH value, phosphorylation reaction, regulating pH value, neutralizing by acid, washing, dewatering and drying.

Description

technical field [0001] The invention relates to a preparation method of high emulsifying wheat gluten. Background technique [0002] Wheat gluten, or wheat gluten, is a by-product of the processing of wheat starch. Because its protein peptide chain contains more hydrophobic amino acids, especially the content of glutamine (Gln) and asparagine (Asn) accounts for 1 / 3 of the total amount of amino acids, resulting in a large area of ​​hydrophobic interaction in the molecule, the solubility Low, which limits its many functional properties in actual production and application. Modification of wheat gluten by chemical means can improve some functional properties of wheat gluten, and it is a powerful tool for directional modification of protein properties. The commonly used chemical modification methods of wheat gluten include phosphorylation, acetylation, glycosylation, cross-linking reaction and restriction enzymatic modification, etc. Chemical modification has the advantages of...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A23J3/18
Inventor 张龙杜风光史吉平陈伟红孙沛勇董青山闫德冉李桂芳
Owner 上海天之冠可再生能源有限公司
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