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Method for producing glutamic acid by corn-soaked water with temperature-sensitive fermentation technology

A technology of corn soaking water and fermentation process, applied in the biological field, to achieve significant resource benefits, convenient implementation, and raw material substitution effects

Active Publication Date: 2013-03-27
LINGHUA GROUP INCORPORATED COMPANY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The above-mentioned literature discusses the rational utilization of corn steeping water, but the method of producing glutamic acid with corn steeping water instead of corn steep liquor has not been reported

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Embodiment 1: the method that corn steeping water is used for the production of glutamic acid in thermosensitive type fermentation process, specifically comprises steps as follows:

[0028] (1) Precipitation: fresh corn soaking water is deposited in the storage tank for 24 hours;

[0029] (2) Removal of sediment: open the bottom valve of the storage tank to remove the sediment, judge the amount of discharged material liquid through the sight cup in front of the bottom valve, and discharge completely when there is no floc in the sight cup;

[0030] (3) Conveying: the corn soaking water that is removed from precipitation is transported to the storage tank of the fermentation batching post with a pump for subsequent use;

[0031] (4) Ingredients: according to the ratio, weigh various raw materials and dissolve them completely to form a fermentation medium;

[0032] The raw material ratio of the fermentation medium is as follows: starch hydrolysis sugar: 58g / L; corn soakin...

Embodiment 2

[0035] Embodiment 2: the method that corn steeping water is used for the production of glutamic acid in thermosensitive type fermentation process, specifically comprises steps as follows:

[0036] (1) Precipitation: fresh corn soaking water is deposited in the storage tank for 24 hours;

[0037] (2) Removal of sediment: open the bottom valve of the storage tank to remove the sediment, judge the amount of discharged material liquid through the sight cup in front of the bottom valve, and discharge completely when there is no floc in the sight cup;

[0038] (3) Conveying: the corn soaking water that is removed from precipitation is transported to the storage tank of the fermentation batching post with a pump for subsequent use;

[0039] (4) Ingredients: according to the ratio, weigh various raw materials and dissolve them completely to form a fermentation medium;

[0040]The raw material ratio of the fermentation medium is as follows: starch hydrolysis sugar: 62g / L; corn soaking...

Embodiment 3

[0043] Embodiment 3: the method that corn steeping water is used for the production of glutamic acid in thermosensitive type fermentation process, specifically comprises the steps as follows:

[0044] (1) Precipitation: fresh corn soaking water is deposited in the storage tank for 24 hours;

[0045] (2) Removal of sediment: open the bottom valve of the storage tank to remove the sediment, judge the amount of discharged material liquid through the sight cup in front of the bottom valve, and discharge completely when there is no floc in the sight cup;

[0046] (3) Conveying: the corn soaking water that is removed from precipitation is transported to the storage tank of the fermentation batching post with a pump for subsequent use;

[0047] (4) Ingredients: according to the ratio, weigh various raw materials and dissolve them completely to form a fermentation medium;

[0048] The raw material ratio of the fermentation medium is as follows: starch hydrolysis sugar: 60g / L; corn so...

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Abstract

The invention discloses a method for producing glutamic acid by corn-soaked water with temperature-sensitive fermentation technology. The method is used for preparing a fermentation culture medium by replacing corn steep liquor in the temperature-sensitive fermentation technology with the corn-soaked water to produce the glutamic acid in a fermentation way. According to the technology, the operation is convenient, and water and energy are saved, the fermentation cost of the glutamic acid is reduced, so that the method is suitable for the comprehensive popularization during production. After the method is used, the primary water for dosing can be saved, the energy caused by further evaporating and concentrating the corn-soaked water can be greatly saved, the problems of the environment pollution and the energy consumption caused by producing the corn steep liquor (powder) with the corn-soaked water can be solved, and the acid production ratio and the saccharic acid conversion ratio also can be improved.

Description

technical field [0001] The invention belongs to the field of biotechnology, and in particular relates to a method for producing glutamic acid in a temperature-sensitive fermentation process by using corn steeping water instead of corn steep liquor. Background technique [0002] A large amount of soaking water will be produced in the production process of corn starch, its dry matter content accounts for about 7% to 9%, and its pH value is 3.9 to 4.1. The main components of bioavailability are glucose, various amino acids and trace elements. Biotin, riboflavin, vitamin B1, etc. necessary for life activities. The traditional method of using corn soaking water is to further evaporate and concentrate to produce corn steep liquor or spray it to produce corn steep liquor powder after concentration, which not only consumes a lot of energy, but also pollutes the environment. [0003] Corn steep liquor is an important raw material for glutamic acid temperature-sensitive fermentation....

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C12P13/14
Inventor 杨玉岭张恒志满德恩岳希金郭脉海
Owner LINGHUA GROUP INCORPORATED COMPANY
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