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Process for processing protein powder from corns

A technology of corn processing and protein powder, which is applied in the field of natural protein separation, extraction and deep processing, can solve the problems of incomplete utilization, etc., and achieve the effect of short processing steps, good stability and repeatability, and increased yield

Inactive Publication Date: 2015-12-30
屈玉振
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The available value of corn is high, but the deep processing of corn is mainly used as feed, and its value is not fully utilized. Extracting protein from corn by physical methods is a green production process that retains protein characteristics and nutrition and has a high cost-effectiveness ratio. , corn gluten powder, corn gluten milk powder, corn gluten liquid milk and corn starch can be obtained, which can increase the value of corn by 6-8 times, and the economic and social benefits are very significant

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0012] Example 1 Weigh 100g of crushed corn, add 900kg of warm water at 40°C, soak for 4 hours, use 25KHz working frequency ultrasonic to assist grinding and refining to 100 mesh, adjust the pH value of the slurry to neutral, keep the temperature at 55°C, add 3g Hydrolyze with neutral protease for 2 hours, separate, dry and pulverize to obtain edible protein powder. The final protein content is 78%, the average protein yield is 94%, and its stability and reproducibility are good.

Embodiment 2

[0013] Example 2 Weigh 100g of crushed corn, add 800kg of warm water at 45°C, soak for 3 hours, use 20KHz working frequency ultrasonic to assist crushing and refining to 120 mesh, adjust the pH value of the slurry to 7.5, keep the temperature at 40°C, add 1g of alkali The protein was hydrolyzed for 1 hour, separated, dried and pulverized to obtain edible protein powder. The final protein content is 76%, the average protein yield is 94%, and its stability and reproducibility are good.

Embodiment 3

[0014] Example 3 Weigh 100g of crushed corn, add 600kg of warm water at 50°C, soak for 5 hours, use 21KHz working frequency ultrasonic to assist grinding and refining to 150 mesh, adjust the pH value of the slurry to neutral, keep the temperature at 45°C, add 2g Neutral protease was hydrolyzed for 1.5 hours, separated, dried and pulverized to obtain edible protein powder. The final protein content is 79%, the average protein yield is 95%, and the stability and reproducibility are good.

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PUM

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Abstract

The invention discloses a process for processing protein powder from corns, relating to the technical field of separation extraction and deep processing of natural protein. The process procedure comprises the steps of crushing and pulping of a raw material, enzymolysis, separation, protein powder drying and protein powder crushing; in the crushing and pulping process of raw materials, a certain amount of corns is soaked with warm water of 40 to 60 DEG C and is then crushed and pulped to 100 meshes under the ultrasonic assistance; in the enzymolysis process, pH value and enzymolysis temperature are adjusted, corn pulp is hydrated by an enzymatic process, the enzymolysis temperature is 40 to 60 DEG C, and pH value is weakly alkaline being 7.0 to 7.5. According to the method for extracting the protein powder from the corns, the corns are crushed and pulped under the ultrasonic assistance, so that the yield of the protein powder is increased. In the meantime, the process disclosed by the invention is relatively short in processing steps, simple and feasible, better in stability and repeatability, and free of strongly alkaline or toxic soaking agents, and thus being safe and free of pollution.

Description

technical field [0001] The invention relates to the technical field of separation, extraction and deep processing of natural protein, in particular to a process for extracting protein powder from corn. Background technique [0002] The metabolizable energy of corn is 14.06MJ / kg, and the highest one can reach 15.06MJ / kg, which is the highest among cereal feeds. This is mainly due to the fact that there is very little crude fiber in corn, only 2%; while the nitrogen-free extract is as high as 72%, and the digestibility can reach 90%; on the other hand, the crude fat content of corn is high, between 3.5% and 4.5%. . Corn is an annual grass plant, also known as corn, cob, six valleys and so on. According to research, every 100 grams of corn contains 106 kcal of calories, 2.9 grams of cellulose, 4.0 grams of protein, 1.2 grams of fat, 22.8 grams of carbohydrates, and other mineral elements and vitamins. The crude fiber contained in corn is 4-10 times higher than that of polish...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A23J1/12
Inventor 屈玉振
Owner 屈玉振
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