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Corn soaking method in waxy corn starch production

A technology for soaking waxy corn starch and corn, which is applied in the field of corn starch wet processing, can solve the problems of long corn soaking time, large waste water discharge, large energy consumption, etc., and achieves the advantages of separation, reduction of scaling, and improvement of soaking efficiency. Effect

Active Publication Date: 2016-07-27
CHONGQING ACAD OF AGRI SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] In view of the above-mentioned shortcoming of prior art, the purpose of the present invention is to provide a kind of corn soaking method in the waxy cornstarch production, be used to solve the soaking time of corn in the prior art is long, production cost is high, production efficiency is low, energy Large consumption, large waste water discharge, environmental pollution and other issues

Method used

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  • Corn soaking method in waxy corn starch production

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Effect test

Embodiment 1

[0026] A kind of corn soaking method in the production of waxy cornstarch, comprises the steps:

[0027] 1) One-time soaking: take the waxy corn of Yunuo 851 variety as raw material, and use a soaking tank to carry out cyclic dynamic soaking (the soaking liquid circulates into the soaking tank to soak the waxy corn so that the waxy corn is fully soaked), and the soaking ratio is per ton Waxy corn water 1.0m 3 , add lactic acid and compound enzyme simultaneously, the weight of lactic acid accounts for 5% of soaking liquid weight, the weight of compound enzyme is 0.3% of waxy corn weight, compound enzyme is the mixture of cellulase, hemicellulase, pectinase, compound The enzyme activity units in the enzyme are as follows: cellulase 10000U / g, hemicellulase 10000U / g, pectinase 8000U / g, the weight ratio of cellulase, hemicellulase and pectinase is 3:3:1 , the soaking temperature is 50°C, the pH value of the soaking solution is 4.0 (the pH value of the soaking solution is adjusted ...

Embodiment 2

[0037] 1) One-time soaking: using the waxy corn of Yunuo No. 8 variety as raw material, using a soaking tank to circulate and dynamically soak, the soaking ratio is 0.6m water per ton of waxy corn 3 , add lactic acid and compound enzyme simultaneously, the weight of lactic acid accounts for 9% of soaking liquid weight, the weight of compound enzyme is 0.1% of waxy corn weight, compound enzyme is the mixture of cellulase, hemicellulase, pectinase, compound The enzyme activity units in the enzyme are as follows: cellulase 10000U / g, hemicellulase 10000U / g, pectinase 8000U / g, the weight ratio of cellulase, hemicellulase and pectinase is 2:2:1.5 , the soaking temperature is 48°C, the pH value of the soaking solution is 3.8 (the pH value of the soaking solution is adjusted by lactic acid aqueous solution and NaOH aqueous solution), and the soaking time is 13 hours. The soaked waxy corn has a water content of 44wt%, a dry matter content of 6wt% in the soaking water, the wet waxy corn...

Embodiment 3

[0041] 1) One-time soaking: take the waxy corn of Yunuo No. 11 as raw material, and use a soaking tank to circulate and dynamically soak, and the soaking ratio is 0.8m water per ton of waxy corn. 3 , add lactic acid and compound enzyme simultaneously, the weight of lactic acid accounts for 12% of soaking liquid weight, the weight of compound enzyme is 0.2% of waxy corn weight, compound enzyme is the mixture of cellulase, hemicellulase, pectinase, compound The enzyme activity units in the enzyme are as follows: cellulase 10000U / g, hemicellulase 10000U / g, pectinase 8000U / g, the weight ratio of cellulase, hemicellulase and pectinase is 2:2:1 , the soaking temperature is 52°C, the pH value of the soaking solution is 4.2 (the pH value of the soaking solution is adjusted by lactic acid aqueous solution and NaOH aqueous solution), and the soaking time is 14 hours. The soaked waxy corn has a water content of 46wt%, a dry matter content of 8wt% in the soaking water, the wet waxy corn i...

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Abstract

The invention provides a corn soaking method in waxy corn starch production.The method comprises the first step of primary soaking, wherein waxy corn serves as a raw material, water, lactic acid and complex enzyme are added, and soaking is conducted; the second step of waxy corn degerming, wherein broken degerming is conducted on the soaked waxy corn; the third step of secondary soaking, wherein water and compound protease are added into the broken-degermed waxy corn, standing soaking is conducted, and after soaking, the waxy corn gets into the starch production procedure.By means of the method, the waxy corn soaking efficiency can be effectively improved, the soaking time can be shortened, a safe soaking agent is adopted, sulphurous acid is not added in the soaking process, no SO2 pollution is caused, and the yield of waxy corn starch is increased.

Description

technical field [0001] The invention relates to the technical field of corn starch wet processing, in particular to a corn soaking method in the production of waxy corn starch. Background technique [0002] Waxy corn is a special type of corn variation. The main or all components of waxy corn starch are amylopectin. It has a special purpose and status in the food processing industry. For example, it can be used to increase the viscosity and shape of food, and can stabilize frozen food. Its internal structure can suspend pulp in natural fruit juice, etc. It can also be widely used in textile, pharmaceutical, papermaking, adhesive production, casting, construction and petroleum industries. The booming food industry in my country also has great influence on waxy corn amylopectin. Huge demand. [0003] The production of waxy corn starch mainly adopts the traditional wet processing technology, which is called "fishing for the moon in water". Soaking is one of the main processes i...

Claims

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Application Information

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IPC IPC(8): C08B30/02C08B30/20
CPCC08B30/02C08B30/20
Inventor 高飞虎张玲曾志红张雪梅周茂林
Owner CHONGQING ACAD OF AGRI SCI
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