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Method for preparing instant dried corn steep liquor powder by using corn steep liquor

A technology of corn steep liquor dry powder and corn soaking liquid, which is applied in the direction of biochemical equipment and methods, food preparation, application, etc., can solve the problems of increasing the labor intensity of operation, easy to produce precipitation, and occupying a large space, so as to facilitate freezing or Drying and drying, easy storage and transportation, and high production efficiency

Inactive Publication Date: 2012-07-11
HENAN XINYUAN BIOTECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The technical problem to be solved by the present invention is the method for preparing corn steep liquor in the prior art. The corn steep liquor obtained contains a large amount of water, takes up a large space during transportation and storage, is inconvenient to carry, easily produces precipitation after standing for a period of time, and must be prepared during batching. Use it after fully stirring, which increases the labor intensity of the operation

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  • Method for preparing instant dried corn steep liquor powder by using corn steep liquor
  • Method for preparing instant dried corn steep liquor powder by using corn steep liquor
  • Method for preparing instant dried corn steep liquor powder by using corn steep liquor

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Embodiment Construction

[0019] Such as figure 1 As shown, the method of the present invention for preparing instant corn steep liquor dry powder by using corn soaking liquid comprises the following steps: comprising clarification and separation, ultrafiltration filtration, four-effect evaporation, and spray drying.

[0020] Firstly, the corn soaking liquid is pretreated by clarification and separation method, and then the pretreated liquid is filtered by ultrafiltration membrane using flat ultrafiltration membrane equipment. The selected ultrafiltration membrane has a membrane area of ​​1 m 2 , the membrane material is PE, the relative cut-off molecular weight of the ultrafiltration membrane is 20KD, the pore size is 5000 Daltons, the operating temperature of the system is 25°C, the working pressure is 0.2MPa, and the inlet flow rate is 160L / min, thus the permeate and The retentate, wherein the molecular weight of the permeate is less than 5000 Daltons, and the molecular weight of the retentate is g...

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Abstract

The invention discloses a method for preparing instant dried corn steep liquor powder by using corn steep liquor. The method comprises the following steps of: separating the corn steep liquor into a permeate and a trapped fluid by an ultrafiltration membrane separation technology, treating a separation liquid with lower molecular weight by a lime milk neutralization method to prepare inositol and produce a supernatant, mixing the supernatant and a separation liquid with high molecular weight, concentrating the mixed liquor by using a 'four-effect evaporation' system, adding a certain amount of maltodextrin into the concentrated mixed liquor, and preparing microencapsulated instant dried corn steep liquor powder through spray drying. By the method, the retention rate of protein is high in the ultrafiltration membrane separation process; during concentration by using the 'four-effect evaporation' system, steam is saved, and energy consumption is reduced; and the corn steep liquor is wrapped by a microcapsulation technology, so that the corn steep liquor is easy to dry, preserve and transport.

Description

technical field [0001] The invention relates to a method for preparing instant corn steep liquor dry powder by using corn soaking liquid. Background technique [0002] At present, most corn starch production enterprises use corn steep liquor directly as a nitrogen source in the production of enzyme preparations. Since corn steep liquor contains a lot of water, it is easy to breed microorganisms during storage and degrade the nutrients in it. In the drying stage, the direct spray drying method is usually used in China. The dry corn steep liquor powder obtained by this method has relatively strong hygroscopicity, is difficult to store, and is easy to agglomerate during the storage process. During the drying process through the spray drying tower, the corn steep liquor dry powder is adsorbed on the powder filter bag of the spray drying tower, which makes it difficult to clean the powder filter bag, and even pastes the powder filter bag, thus making the spray drying tower unable...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A23L1/10C12N1/00A23L7/10
Inventor 何红兵谢新华赵春红王治国赵立军
Owner HENAN XINYUAN BIOTECH CO LTD
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