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Compound medicament for separating crude proteins from monosodium glutamate-fermented waste liquor and preparation method thereof

A technology of compound medicament and fermentation waste liquid, which is applied in the field of medicament formula for separating crude protein, can solve the problems of low recovery rate of crude protein, complex process, difficult enterprise, etc., and achieve the effect of less dosage, wide source and low price

Active Publication Date: 2013-05-22
溧阳常大技术转移中心有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since the crude protein in the MSG fermentation waste liquid is in a stable colloidal state, the conventional treatment methods have disadvantages such as low recovery rate of crude protein, complicated process, high cost, etc., which are difficult for general enterprises to accept, and sneak discharge accidents often occur

Method used

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  • Compound medicament for separating crude proteins from monosodium glutamate-fermented waste liquor and preparation method thereof
  • Compound medicament for separating crude proteins from monosodium glutamate-fermented waste liquor and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0012] At room temperature, add 2.1315kg of sodium metasilicate nonahydrate solid and 42.93kg of water to the reaction kettle, stir quickly to make it evenly mixed, and dilute to a solution with a silicon dioxide concentration of about 1%; then add sulfuric acid and acidify to pH≈1-1.5, and let stand for 2min; then press (Al 3+ +Fe 3+ ) / SiO 2 The molar ratio is 1.5, Al 3+ / Fe 3+ Molar ratio is the ratio of 0.5, add 0.905kg aluminum chloride hexahydrate and 2.027kg ferric chloride hexahydrate respectively, stir rapidly 5min with rotating speed 850r / min, make polysilicate aluminum ferric chloride solution; Add 1 kg of chitosan and 1.0065 kg of starch into the kettle, stir rapidly at a speed of 850 r / min for 5 min, and ripen for 1 hour to obtain 50 kg of compound medicament for recovering crude protein in fermentation waste liquid. Put this compound agent into the MSG fermentation waste liquid with pH=0.5 and absorbance of 1.5 at an amount of 0.5kg / t. After coagulation and pr...

Embodiment 2-5

[0014] The difference between Examples 2-5 and Example 1 is that different Al 3+ / Fe 3+ The molar ratio makes the dosages of aluminum chloride hexahydrate, ferric chloride hexahydrate, chitosan and starch different, and the dosages and operating conditions of other raw materials are the same. The ratio of raw materials of Examples 1-5 is shown in Table 1 below, and the treatment effect of the corresponding monosodium glutamate fermentation waste liquid is shown in Table 2 below:

[0015] Table 1

[0016]

[0017] Table 2

[0018]

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Abstract

The invention discloses a compound medicament for separating crude proteins from monosodium glutamate-fermented waste liquor and a preparation method thereof. The preparation method comprises the following steps of: adding 42.63 g / kg of sodium metasilicate nonahydrate solids and 858.6 g / kg of water to a reactor at room temperature, rapidly stirring for uniformly mixing, and diluting to a solutionwith the silicon dioxide concentration of 1%; then adding sulfuric acid to the reactor to acidize the solution to the pH value of 1-1.5, and standing for 2 min; stabilizing the molar ratio (Al<3+>+Fe<3+>) / SiO2 of 1.5, then adding 18.1 g / kg-40.74 g / kg of aluminum chloride hexahydrate and 15.2 g / kg-40.54 g / kg of ferric trichloride hexahydrate according to different Al3 / Fe<3+> molar ratio of 0.5-2; stirring for 5 min in the high rotation speed of 850r / min for uniformly mixing to produce polysilicate aluminum ferrite chloride with different proportions; and finally adding 20 g / kg -30 g / kg of chitosan and 12.83 g / kg-20.13 g / kg of starch, stirring for 5 min in the high rotation speed of 850 r / min and curing for 1 hour to produce the compound medicament with different proportions. The compound medicament has the advantages of wide source of raw materials, less consumption, safety, no toxicity and simple process and reduces the concentrations of organic pollutants in the waste liquor when recovering the crude proteins from monosodium glutamate-fermented waste liquor.

Description

technical field [0001] The invention belongs to the technical field of bioengineering, and in particular relates to a medicament formula for separating crude protein from monosodium glutamate fermentation waste liquid. Background technique [0002] During the production of monosodium glutamate, glutamic acid is extracted by isoelectric point crystallization and ion exchange, and then the fermentation waste liquid is discharged. The fermentation waste liquid contains a large number of bacteria, and these bacteria contain 1.0%-1.5% crude protein (also known as bacteria). Body protein) is a protein feed additive for aquatic products and livestock and poultry breeding industries. The market price is as high as 4,000 yuan / ton. If it is recycled, it will not only extend the product chain of the monosodium glutamate industry, but also reduce waste discharge. Since the crude protein is in the form of particles with a diameter of only about Φ0.8μm, it is in a stable colloidal state i...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C07K1/30
Inventor 张文艺李秋燕罗鑫范培成刘明元李定龙
Owner 溧阳常大技术转移中心有限公司