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Extracted corn protein and production method thereof

A protein extraction technology, which is applied in the preparation method of peptides, chemical instruments and methods, plant peptides, etc., can solve the problems of increasing the cost of wastewater treatment, seriously polluting the water environment, and wasting available protein powder. Effects of solving pollution problems and reducing pressure on environmental protection

Inactive Publication Date: 2011-11-02
SHANDONG LONGLIVE BIO TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The treatment methods of corn water wastewater are as follows: ① direct discharge, because its CODcr content is as high as 12000-15000 mg / liter, it will seriously pollute the water environment, which is not allowed by the country, and also waste the available protein powder; ② treat it in a certain way , which not only wastes available protein powder, but also increases the cost of wastewater treatment for enterprises

Method used

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  • Extracted corn protein and production method thereof
  • Extracted corn protein and production method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] (1) Primary precipitation: the Baume degree of corn soaking water stock solution is 9Be °, pH is 3.5; Regulate its pH with sodium hydroxide to be 6.5, stir evenly, utilize the difference of isoelectric point of various proteins to make part of the protein flocculate and precipitate first, Raise the temperature to 80°C, keep it warm for 30 minutes, and separate the solid and liquid once to obtain a precipitated protein (paste);

[0016] (2) Secondary precipitation: After the first settling, the Baume degree of the liquid is 5 Be °, and the pH is 6.5; the pH is adjusted to 8.5 with calcium hydroxide, stirred evenly, and placed at room temperature for 30 minutes, a large amount of calcium precipitated protein is precipitated, and the second settling at room temperature Secondary solid-liquid separation to obtain secondary precipitated protein (paste);

[0017] (3) Evaporation and concentration: the liquid after the secondary precipitation is concentrated in a three-effect ...

Embodiment 2

[0023] (1) Primary precipitation: the Baume degree of corn soaking water stock solution is 8.5Be°, pH is 4.0; use sodium hydroxide to adjust its pH to 6.3, stir evenly, use the different isoelectric points of various proteins to first make some proteins flocculate and precipitate , the temperature was raised to 80°C, and after 30 minutes of heat preservation, a solid-liquid separation was performed to obtain a precipitated protein (paste);

[0024] (2) Secondary precipitation: After the first settling, the Baume degree of the liquid is 4.5Be°, and the pH is 6.3; the pH is adjusted to 8.3 with calcium hydroxide, stirred evenly, and placed at room temperature for 30 minutes, a large amount of calcium precipitated protein is precipitated, and at room temperature Secondary solid-liquid separation to obtain secondary precipitated protein (paste);

[0025] (3) Evaporation and concentration: the liquid after the secondary precipitation is concentrated in a three-effect vacuum to obta...

Embodiment 3

[0031] (1) Primary precipitation: the Baume degree of corn soaking water stock solution is 8.0Be°, pH is 3.0; use sodium hydroxide to adjust its pH to 6.0, stir evenly, use the different isoelectric points of various proteins to first make some proteins flocculate and precipitate , the temperature was raised to 80°C, and after 30 minutes of heat preservation, a solid-liquid separation was performed to obtain a precipitated protein (paste);

[0032] (2) Secondary precipitation: After the first settling, the Baume degree of the liquid is 4Be °, and the pH is 6.0; the pH is adjusted to 8.0 with calcium hydroxide, stirred evenly, and placed at room temperature for 30 minutes, a large amount of calcium precipitated protein is precipitated, and the second precipitation at room temperature Secondary solid-liquid separation to obtain secondary precipitated protein (paste);

[0033] (3) Evaporation and concentration: the liquid after the secondary precipitation is concentrated in a thr...

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Abstract

The invention discloses extracted corn protein which takes corn soaking water generated in the process of producing corn starch by traditional technology as raw materials and is produced through physical-chemical precipitation, separation, evaporation and drying. The protein product of the invention is rich in kinds of amino acid, reasonable in composition proportion and high in nutritive value, contains lots of essential amino acids required by human bodies and animals, not only can be used as animal feeds but also can be used as composition of culture media to culture microorganisms. The production technology of the invention not only produces no pollutants, but also perfectly solves the problem of corn water pollution in the process of producing the corn starch and lightens the environmental protection pressure, thus being an environment-friendly production method which changes wastes into valuables.

Description

technical field [0001] The invention relates to a corn extraction protein produced by using corn soaking water as a raw material, and also relates to a production method thereof. Background technique [0002] The essential amino acids of animal protein are relatively balanced, but animal protein mainly comes from meat, fish, milk, eggs and other foods. Saturated fatty acids and cholesterol, which is not good for health. [0003] At present, with the continuous expansion of domestic corn starch production scale, the amount of corn soaking water continues to expand, resulting in a large amount of waste water such as corn soaking water. The treatment methods of corn water wastewater are as follows: ① direct discharge, because its CODcr content is as high as 12000-15000 mg / liter, it will seriously pollute the water environment, which is not allowed by the country, and also waste the available protein powder; ② treat it in a certain way , which not only wastes available prote...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C07K14/415C07K1/30C07K1/14
Inventor 尤新肖林覃树林陈小刚赵海涛
Owner SHANDONG LONGLIVE BIO TECH CO LTD
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