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Biology starch-base solid gum and preparation method thereof

A technology of biological starch and solid glue, applied in the directions of starch-derived adhesives, adhesive types, adhesive additives, etc., can solve the problems of short shelf life and loss of bonding ability, prevent mildew degradation and increase stability. sexual effect

Inactive Publication Date: 2013-02-13
NINGBO YATE CHEM TECH DEV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If the gelatinized starch is oxidized, hard sodium acetate will also form a gel when it encounters the electrolyte, losing most of its bonding ability, and if it can form a solid glue, the shelf life is very short

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] Prepare biological starch-based solid glue, follow the steps below:

[0030] Step 1: Mix 40 g of edible waxy corn starch and 100 g of water, gelatinize at 85° C. for 3 to 4 hours to completely gelatinize the starch, and form mixture I;

[0031] Step 2: Cool the mixture I to 60°C±1°C, add 4 mg of limit dextrinase while stirring at a speed of 65 rpm / min, adjust the pH value to 4.5, and perform enzymatic hydrolysis for 3 hours. After the enzymatic hydrolysis reaction, the formed Mixture II; the formed mixture II contains limit dextrin, polysaccharide and monosaccharide etc.

[0032] Step 3: vacuum dehydrating the mixture II to a solid content of 50% to obtain mixture III;

[0033] Step 4: Add 5g of pregelatinized waxy cornstarch and 4mg of cyclodextrinase to the mixture III, and add 5ml of H 2 o 2 The solution (mass concentration is 30%) undergoes complexation and oxidation reactions, reacts for 2 hours to generate hydrophilic genes, and forms a viscous mixture IV;

[...

Embodiment 2

[0041] Prepare biological starch-based solid glue, follow the steps below:

[0042] Step 1: Mix 40 g of edible waxy corn starch and 100 g of water, gelatinize at 85° C. for 3 to 4 hours to completely gelatinize the starch, and form mixture I;

[0043] Step 2: Cool the mixture I to 60°C±1°C, add 5 mg of limit dextrinase while stirring at a speed of 50 rpm / min, adjust the pH value to 4.5, and perform enzymatic hydrolysis for 3 hours. After the enzymatic hydrolysis reaction, the formed Mixture II; the formed mixture II contains limit dextrin, polysaccharide, and monosaccharide, etc.

[0044] Step 3: vacuum dehydrating the mixture II to a solid content of 35% to obtain mixture III;

[0045] Step 4: Add 5g of pregelatinized waxy cornstarch and 2mg of cyclodextrinase to the mixture III, and add 5ml of H 2 o 2 The solution (mass concentration is 30%) undergoes complexation and oxidation reactions, reacts for 2 hours to generate hydrophilic genes, and forms a viscous mixture IV;

[...

Embodiment 3

[0053] Prepare biological starch-based solid glue, follow the steps below:

[0054] Step 1: Mix 40 g of edible waxy corn starch and 100 g of water, gelatinize at 85° C. for 3 to 4 hours to completely gelatinize the starch, and form mixture I;

[0055] Step 2: Cool the mixture I to 60°C±1°C, add 6 mg of limit dextrinase while stirring at a speed of 70 rpm / min, adjust the pH value to 4.5, and perform enzymatic hydrolysis for 3 hours. After the enzymatic hydrolysis reaction, the formed Mixture II; the formed mixture II contains limit dextrin, polysaccharide, and monosaccharide etc.

[0056] Step 3: vacuum dehydrating the mixture II to a solid content of 65%, to obtain the mixture III;

[0057] Step 4: Add 5 g of pregelatinized waxy corn starch and 6 mg of cyclodextrinase to the mixture III, and add 5 ml of H 2 o 2 The solution (mass concentration is 30%) undergoes complexation and oxidation reactions, reacts for 2 hours to generate hydrophilic genes, and forms a viscous mixtur...

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Abstract

The invention discloses a preparation method of a biology starch-base solid gum. The preparation method includes the following steps: mixing waxy corn starch with water, heating up to 85-100 DEG C, conducting gelatinization for 3-4 hours until the starch is gelatinized completely, cooling to 60 + / - 1 DEG C, adding the amylase and conducting an enzymolysis reaction, dehydrating in a vacuum mode until the solid content reaches 35-65%, adding pregelatinization waxy corn starch and cyclodextrin enzyme, adding excessive H2O2 at a speed of 65 rotations per minute with stirring the waxy corn starch mixed with the water to carry out complexation and oxidation reactions, adding moderate deoxidation residual H2O2 sodium sulfite after the reaction is for 2 hours, then inactivating the enzyme, adding fatty acid continuously, at the same time, adjusting pH value of the NaOH aqueous solution to 8.5-10, and adding the preservative to obtain the biology starch-base solid gum. The raw materials of the biology starch-base solid gum prepared through the preparation method come from the nature, and the biology starch-base solid gum has the advantages of being healthy and environmental friendly.

Description

technical field [0001] The invention relates to the bio-new material industry, a solid glue material produced entirely with bio-starch base, the technical innovation of the formula, and especially relates to a good material for the solid glue to be bonded to environmentally friendly and degradable paper. Background technique [0002] The solid glue currently used in the market, one is produced with polyvinyl acetal glue (PVP) as raw material, and the other is produced with polyvinylpyrrolidone as raw material. The former has free formaldehyde, and the solid glue is harmful to the human body during use, and has low solid content and short shelf life. The latter, the solid glue produced with PVC material has high raw material cost, low solid content, and short shelf life, and most of the PVP raw materials are currently produced with calcium carbide as raw material, which is harmful to the environment during the production process. The danger is considerable. [0003] The pro...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J103/10C09J11/06C08B31/18
Inventor 孙习羽
Owner NINGBO YATE CHEM TECH DEV
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