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Device and method for preparing starch sugar for high-temperature corn drying

A technology of high-temperature drying and starch sugar, which is applied in sterilization methods, biochemical equipment and methods, and methods of supporting/immobilizing microorganisms, etc. Liquefaction and saccharification light transmittance improvement, reduced modified starch content, improved liquefaction effect and saccharification effect

Active Publication Date: 2018-11-27
国粮武汉科学研究设计院有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0007] The purpose of the present invention is to address the deficiencies of the prior art: in the method of preparing starch sugar with high-temperature drying corn as raw material, the modified starch produced at high temperature and the original starch are mixed into the production of starch sugar, which is not easy to separate, and it is easy to cause poor liquefaction effect and saccharification Filtration is difficult, and the filter residue cannot be recycled and other defects, and a device and method suitable for high-temperature drying corn to prepare starch sugar are provided

Method used

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  • Device and method for preparing starch sugar for high-temperature corn drying

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Embodiment 1

[0047] Applicable to high-temperature drying corn to prepare starch sugar, including a starch milk separation unit disc separator for separating coarse starch milk, a starch emulsification unit, and a solid phase separation unit for separating the liquefied liquid after starch emulsification. Saccharification flocculation unit for saccharification and protein flocculation.

[0048] The solid phase separation unit for separating the liquefied liquid after starch emulsification includes a primary cooling device, a decanter centrifuge connected to the primary cooling device and a secondary cooling device connected to the liquid phase separation port of the decanter centrifuge. In the device, the liquefied liquid is separated from the light phase and the heavy phase by a decanter centrifuge after the first stage of cooling, and the light phase enters the saccharification and flocculation unit after the second stage of cooling for saccharification. The protein drying device 4 conne...

Embodiment 2

[0062] (1) Separating the coarse starch milk obtained by processing the high-temperature dried corn through a disk separator to obtain gluten water and starch milk. The feed concentration of the coarse starch milk in the main separation disk separator is 10.0Bé. After machine separation, the bottom flow concentration is 17.7Bé, and the top flow dry matter content is 2.5%;

[0063] (2) After liquefaction, the liquefied liquid with a temperature of 95°C enters the plate heat exchanger for primary cooling, and the temperature of the liquefied liquid is reduced from 95°C to 80°C by adjusting the cooling water flow of the plate heat exchanger;

[0064] (3) The liquefied liquid after the first-level cooling enters the decanter centrifuge for separation, and the feed flow rate is 13m 3 / h, the solid content in the feed is 1.2%, the parameters of the decanter centrifuge are a differential speed of 10 rpm, and a separation factor of 3000. After being separated by a decanter centrifuge...

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Abstract

The invention relates to a device and method for preparing starch sugar for high-temperature corn drying. The method comprises the following steps: increasing the input concentration of coarse starchmilk which is processed from corn, separating the coarse starch milk through a disk type separator to obtain starch milk with reduced content of gluten water and modified starch; liquifying and separating the starch milk to obtain a starch milk light phase; saccharifying the starch milk light phase, performing protein flocculation on the saccharified liquid, and performing post-treatment to obtainthe starch sugar. According to the method, the content of modified starch in starch milk can be reduced, the liquifying and saccharifying effect can be greatly improved, and the integral production effect is remarkably promoted.

Description

technical field [0001] The invention relates to a device and a method suitable for preparing starch sugar, in particular to a device and a method for preparing starch sugar by using high-temperature dried corn as a raw material. Background technique [0002] As a sweetener, starch sugar is widely used in food, beverage and other industries, and corn starch is the main raw material for the production of starch sugar. The general preparation process for producing starch sugar from corn starch is as follows: the corn is first processed into corn starch or starch milk through traditional wet processing technology, and then the starch or starch milk is processed into starch sugar through a series of processing processes such as pulping and liquefaction. [0003] As a crop, corn has different moisture content after maturity due to differences in planting regions, climates and other conditions. In order to facilitate long-term storage, the moisture content needs to be reduced to be...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C12P19/20C12P19/14C12M1/40C12M1/34C12M1/12C12M1/02C12M1/00
CPCC12M21/18C12M27/02C12M41/44C12M45/05C12M45/09C12M45/20C12M47/10C12P19/14C12P19/20
Inventor 郜培秦正平娄新建赵琳琳黄文雄程科
Owner 国粮武汉科学研究设计院有限公司
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