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Technique for preparing wheat gluten adhesives

A technology of wheat gluten protein and production process, applied in the direction of protein adhesive, pectin adhesive, adhesive type, etc., can solve problems such as bond strength limitation

Inactive Publication Date: 2009-02-04
EAST CHINA NORMAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Chinese patent (2006100705065) discloses a production process of soybean protein adhesive. The technical scheme is to use soybean protein powder as raw material and mix it with phenolic resin in a certain proportion to prepare the adhesive. The adhesive is added with phenolic resin , so that the bonding strength is limited to a certain extent

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] In the first step, 1 part weight is 25g, and the consumption of wheat gluten protein, distilled water and the concentration of 2% citric acid solution are 25g, 75ml and 50ml respectively, which is equivalent to wheat gluten protein, water and concentration of 2% citric acid The weight ratio of the solution is 1: 3: 2, at a stirring speed of 300rpm, stir for 60min, let stand for 80min, adjust the pH of the mixed solution to 2.2; in the second step, the concentration and dosage of the water-soluble colloid solution are respectively 2.0wt % and 25ml, the weight ratio that is equivalent to wheat gluten protein and water-soluble colloid solution is 1: 1, and water-soluble colloid is pectin, stirs 10min under 1000rpm stirring speed; In the 3rd step, leave standstill 8h, get 160ml wheat gluten The protein binder is equivalent to that the weight ratio of wheat gluten protein to wheat gluten protein binder is 1:7.

Embodiment 2

[0023] In the first step, 1 weight is 25g, and the consumption of wheat gluten, distilled water and concentration is 1.0wt% citric acid solution is respectively 25g, 75ml and 150ml, is equivalent to wheat gluten, water and concentration is 1.0wt% The weight ratio of citric acid solution is 1: 3: 6, under the stirring speed of 6000rpm, stir 30min, leave standstill 100min, regulate the pH of mixed solution to 3.6; In the second step, the concentration and consumption of water-soluble colloid solution are respectively 1.0wt% and 75ml, the weight ratio that is equivalent to wheat gluten protein and water-soluble colloid solution is 1: 3, and water-soluble colloid is pectin, stirs 5min under the stirring speed of 5500rpm; In the 3rd step, leave standstill 10h, get 310ml The wheat gluten adhesive is equivalent to a weight ratio of 1:13 between the wheat gluten and the wheat gluten adhesive.

Embodiment 3

[0025] In the first step, 1 portion of weight is 25g, and the consumption of wheat gluten, distilled water and the concentration of 0.1wt% citric acid solution are respectively 25g, 75ml and 250ml, which is equivalent to wheat gluten, water and concentration of 0.1wt%. The weight ratio of citric acid solution is 1: 3: 10, under the stirring speed of 12000rpm, stir 5min, leave standstill 120min, adjust the pH of mixed solution to 5; In the second step, the concentration and consumption of water-soluble colloid solution respectively It is 0.1wt% and 150ml, and the weight ratio that is equivalent to wheat gluten protein and water-soluble colloid solution is 1: 6, and water-soluble colloid is pectin, stirs 1min under 10000rpm stirring speed; In the 3rd step, leave standstill 12h, obtain 485ml of wheat gluten protein binding agent, the weight ratio that is equivalent to wheat gluten protein and wheat gluten protein binding agent is 1: 20.

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Abstract

The present invention relates to a technique for preparing a wheat gluten protein adhesive, which belongs to the technical field of the production of plant protein adhesives. Citric acid solution is poured into the aqueous solution of wheat gluten protein to produce dispersed solution; then, water-soluble colloidal solution is poured into the dispersed solution to modify the protein in the dispersed solution, so that modified solution is produced; the modified solution is kept sill for one night, so that the wheat gluten protein adhesive is prepared. The technique has the advantages of simple process flow, low requirement on production equipment, ample and easily obtained materials, low production cost, excellent product performance, etc. Particularly, the wheat gluten protein adhesive is suitably used as additive for food bonding, cardboard bonding and glass wool.

Description

technical field [0001] The invention relates to a production process of a wheat gluten protein adhesive, which belongs to the technical field of vegetable protein adhesive production. Background technique [0002] Various glues currently used as adhesives mainly use phenolic resins and urea-formaldehyde resins as raw materials, and phenolic resins and urea-formaldehyde resins contain a large amount of formaldehyde. With the strengthening of people's awareness of environmental protection, the amount of formaldehyde released is an important indicator to measure the quality of products. In particular, the National Environmental Protection Agency announced a new formaldehyde emission standard (less than 0.07mg / m 3 air), making the new non-polluting adhesive a new substance sought after by the adhesive and glue industries. [0003] Chinese patent (2006100705065) discloses a production process of a soybean protein adhesive. Its technical proposal is to use soybean protein powder...

Claims

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Application Information

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IPC IPC(8): C09J189/00C09J105/06C09J105/00
Inventor 裴旭东常忠义鲁心安高洪亮
Owner EAST CHINA NORMAL UNIV
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