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Method for preparing low-DE-value maltodextrin from ground corns

A technology of maltodextrin and crushed corn, which is applied in the direction of fermentation, etc., can solve the problems of increasing post-processing filtration difficulties, post-processing filtration difficulties, and ineffective utilization, so as to reduce pre-treatment processes, reduce labor intensity, and reduce viscosity Effect

Active Publication Date: 2019-08-16
武汉友谊兴泰科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Domestic production of maltodextrin uses corn starch as raw material. During the production process, a large amount of crushed corn will be screened out, which cannot be put into production and use. It will be sold as low-priced feed and cannot be effectively utilized; if the production is involved in the production of crushed corn, the latter The process affects the purification of starch, too much liquefied protein, difficulty in post-treatment and filtration, high labor intensity, low yield, high energy consumption and poor iodine test, etc., to produce low maltodextrin with DE≤5% and direct enzymatic hydrolysis of DE to control High difficulty and high viscosity will greatly increase the difficulty of post-processing filtration and affect product quality

Method used

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  • Method for preparing low-DE-value maltodextrin from ground corns
  • Method for preparing low-DE-value maltodextrin from ground corns
  • Method for preparing low-DE-value maltodextrin from ground corns

Examples

Experimental program
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Effect test

Embodiment 1

[0031] After removing iron and stone from the crushed corn collected in production, crush it, pass through a 400-mesh sieve, add water to adjust the slurry to 28%, adjust the pH value to 5.5-5.8, add high-temperature-resistant amylase 0.38kg / T to dry Base starch; high-pressure steam injector is used, material pressure is 0.45Mpa, injection temperature is 112°C, injection time is 8min, 96°C is maintained for 110min, DE value is controlled at 18-20%; high-pressure steam injector is used to kill enzymes, steam pressure is 0.75Mpa, The material pressure is 0.48Mpa, the temperature of spraying enzyme is 142°C, and the spraying time is 8 minutes; after the enzyme is killed, the liquefied liquid is cooled to 88°C, and the slag is removed by a horizontal screw separator, and the slag is dried to make feed; Amar closed type Filter, the amount of carbon added is 2kg / T dry base sugar, the decolorization temperature is 88°C, and the decolorization time is 25min. The filtered material is tr...

Embodiment 2

[0033] After removing iron and stone from the crushed corn collected in production, crush it, pass through a 400-mesh sieve, add water to adjust the slurry to 25%, adjust the pH value to 5.5-6.0, and add 0.35kg / T of high-temperature-resistant amylase to dry Base starch; using a high-pressure steam injector, the steam pressure is 0.75Mpa, the material pressure is 0.48Mpa, the injection temperature is 112°C, the injection time is 8min, the 97°C is maintained for 100min, and the DE value is controlled at 18%; the high-pressure steam injector is used to kill enzymes, and the steam pressure 0.8Mpa, the material pressure is 0.48Mpa, the enzyme spraying temperature is 140°C, and the enzyme spraying time is 10min; after the enzyme is inactivated, the liquefied liquid is cooled to 86°C, the slag is removed by a horizontal screw separator, and the slag is dried to make feed; Ma closed-type filter, the amount of carbon added is 2.5kg / T dry base sugar, the decolorization temperature is 85°...

Embodiment 3

[0035]After removing iron and stone from the crushed corn, crush it, pass through a 400-mesh sieve, add water to adjust the slurry to 21%, adjust the pH value to 5.2-5.5, and add 0.32kg / T dry base starch of high-temperature-resistant amylase; High-pressure steam ejector, steam pressure 0.8Mpa, material pressure 0.5Mpa, injection temperature 112°C, injection time 8min, 98°C for 100min, control DE value 15-20%; use high-pressure steam ejector to kill enzymes, steam pressure 0.8Mpa , the material pressure is 0.5Mpa, the spraying temperature is 138°C, and the spraying time is 10 minutes; after the enzyme is killed, the liquefied liquid is cooled to 85°C, and the slag is removed by a horizontal screw separator, and the slag is dried to make feed; Amar airtight Type filter, the amount of carbon added is 2.2kg / T dry base sugar, the decolorization temperature is 85°C, and the decolorization time is 30min. The filtered material is transparent, carbon-free, and impurity-free, and the lig...

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Abstract

The invention provides a method for preparing low-DE-value maltodextrin from ground corns. The method includes steps: corn grinding, powder screening, pulping, jet liquefying, jet enzyme deactivation,horizontal screw residue removal, decoloration and filtration, icon exchange, membrane separation, concentration, vacuum drying and grinding. The method has advantages that reuse of the ground cornsin production is realized, value increasing, economy, reliability, convenience and thoroughness in residue removal and separation and simplicity in operation are realized, labor intensity is relieved,maltodextrin with a DE value smaller than or equal to 5% can be obtained stably, and iodine test reaction and turbidity are avoided. A product has great emulsification and thickening effects and lowhydroscopicity and can be used as a food additive carrier.

Description

technical field [0001] The invention belongs to the technical field of maltodextrin production, and in particular relates to a method for preparing low DE value maltodextrin from crushed corn. Background technique [0002] Maltodextrin is a low-level hydrolyzed product between starch and starch sugar. Most of the domestic and foreign production uses various types of starch as raw materials. to make. Domestic production of maltodextrin uses corn starch as raw material. During the production process, a large amount of crushed corn will be screened out, which cannot be put into production and use. It will be sold as low-priced feed and cannot be effectively utilized; if the production is involved in the production of crushed corn, the latter The process affects the purification of starch, too much liquefied protein, difficulty in post-treatment and filtration, high labor intensity, low yield, high energy consumption and poor iodine test, etc., to produce low maltodextrin with ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C12P19/04
CPCC12P19/04C12P2201/00
Inventor 彭军耿志富胡东平任强任景龙覃世阳
Owner 武汉友谊兴泰科技有限公司
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