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Starch microsphere and preparation method thereof

A technology of starch microspheres and amylase, which is applied in fermentation and other directions, can solve the problems of low porosity and unstable porous structure, and achieve the effect of large porosity, stable porous structure and large specific surface area

Inactive Publication Date: 2013-09-11
SHANGHAI INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Traditional starch microspheres are directly cross-linked with natural starch as raw material, but there are technical problems such as low porosity and unstable porous structure.

Method used

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  • Starch microsphere and preparation method thereof
  • Starch microsphere and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] A kind of starch microsphere, calculated by mass parts, its raw material composition and content are as follows:

[0043] Waxy corn starch 3.04 parts

[0044] Glucoamylase 0.010 parts

[0045] α-amylase 0.001 parts

[0046] Anhydrous calcium chloride 0.0015 parts

[0047] Citric acid 0.09 parts

[0048] Disodium hydrogen phosphate 0.06 parts

[0049] N'N-methylenebisacrylamide 0.32 parts

[0050] Cerium ammonium nitrate 0.017 parts

[0051] Division 60 0.489 parts

[0052] Tween 60 0.326 parts

[0053] Chloroform 24.13 parts

[0054] Cyclohexane 58.80 parts

[0055] 21.05 parts of deionized water.

[0056] The preparation method of above-mentioned a kind of starch microspheres specifically comprises the following steps:

[0057] (1) Add 3.04 parts of waxy corn starch, 0.010 parts of glucoamylase, 0.001 parts of α-amylase and 0.0015 parts of calcium chloride to the mixture prepared by 0.09 parts of citric acid, 0.06 parts of disodium hydrogen phosphate and 6.3...

Embodiment 2

[0063] A kind of starch microsphere, calculated by mass parts, its raw material composition and content are as follows:

[0064] Waxy corn starch 3.20 parts

[0065] Glucoamylase 0.027 part

[0066] α-amylase 0.020 parts

[0067] Anhydrous calcium chloride 0.0017 parts

[0068] 0.12 parts of citric acid

[0069] Disodium hydrogen phosphate 0.02 parts

[0070] N'N-methylenebisacrylamide 0.07 parts

[0071] Cerium ammonium nitrate 0.181 parts

[0072] Span 60 0.484 copies

[0073] Tween 60 0.322 parts

[0074] Chloroform 23.89 parts

[0075] Cyclohexane 50.30 parts

[0076] 20.85 parts of deionized water.

[0077] The preparation method of above-mentioned a kind of starch microspheres specifically comprises the following steps:

[0078] (1) Add 3.20 parts of waxy corn starch, 0.027 parts of glucoamylase, 0.020 parts of α-amylase and 0.0017 parts of calcium chloride to the mixture prepared by 0.12 parts of citric acid, 0.02 parts of disodium hydrogen phosphate and 6.32...

Embodiment 3

[0084] A kind of starch microsphere, calculated by mass parts, its raw material composition and content are as follows:

[0085] Waxy corn starch 3.35 parts

[0086] Glucoamylase 0.027 part

[0087] α-amylase 0.020 parts

[0088] Anhydrous calcium chloride 0.0017 parts

[0089] 0.12 parts of citric acid

[0090] Disodium hydrogen phosphate 0.02 parts

[0091] N'N-methylenebisacrylamide 0.15 parts

[0092] Cerium ammonium nitrate 0.014 parts

[0093] Span 60 0.484 copies

[0094] Tween 60 0.322 parts

[0095] Chloroform 23.89 parts

[0096] Cyclohexane 50.30 parts

[0097] 20.85 parts of deionized water.

[0098] The preparation method of above-mentioned a kind of starch microspheres specifically comprises the following steps:

[0099] (1) Add 3.35 parts of waxy corn starch, 0.027 parts of glucoamylase, 0.020 parts of α-amylase and 0.0017 parts of calcium chloride to the mixture prepared by 0.12 parts of citric acid, 0.02 parts of disodium hydrogen phosphate and 6.32...

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Abstract

The invention discloses a starch microsphere and a preparation method thereof. The starch microsphere comprises the following raw materials, in parts by mass: 3.04 to 3.35 parts of waxy corn starch, 0.010 to 0.027 part of a glucoamylase enzyme, 0.001 to 0.020 part of an alpha-amylase enzyme, 0.0015 to 0.0017 part of anhydrous calcium chloride, 0.01 to 0.12 part of citric acid, 0.02 to 0.18 part of sodium hydrogen phosphate, 0.07 to 0.61 part of N'N-methylene bisacrylamide, 0.014 to 0.181 part of ammonium ceric nitrate, 0.484 to 0.489 part of Span 60 and 0.322 to 0.326 part of Tween 60. The preparation method is that the waxy corn starch is used as the raw material, after an enzymatically hydrolyzed starch is prepared by a double enzymatic hydrolysis method, the enzymatically hydrolyzed starch is crosslinked by an inverse suspension emulsion method, and the starch microsphere with porous structure, large porosity and large surface area is obtained.

Description

technical field [0001] The invention relates to a starch microsphere and a preparation method thereof. Background technique [0002] Starch is a natural polymer compound that widely exists in nature. It has no toxic and side effects to the environment and is biodegradable. It is an important green chemical raw material. However, native starch has poor stability, easy aging, poor solubility and dispersibility, unstable paste gel and poor transparency, which limits its application in industry. The denaturation treatment of starch can change the physical and chemical properties of the original starch so that it can meet the industrial requirements. [0003] Starch microspheres are a kind of deformed starch prepared by using soluble starch as the raw material, under the action of the initiator, the cross-linking agent and the hydroxyl groups on the starch are cross-linked and micro-spheroidized. Traditional starch microspheres are directly cross-linked with natural starch as ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L3/04C08B31/00C08F251/00C12P19/14C12P19/04
Inventor 胡静肖作兵田婷邓维钧周芸
Owner SHANGHAI INST OF TECH
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