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Production method of heavy-metal-free rice protein

A rice protein and production method technology, applied in protein food processing, vegetable protein processing, protein food ingredients and other directions, can solve the problems of increasing production cost and working hours, affecting product flavor and taste, reducing protein yield, etc., and shortening working hours , Solve the effect of plant heavy metal content exceeding the standard, isolation and absorption

Inactive Publication Date: 2015-05-20
NANCHANG UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the acids used to remove heavy metals tend to decompose starch and denature proteins, thereby affecting the flavor and taste of the product
Moreover, after removing heavy metals by the acid method, the material needs to pass through the plate frame to further separate the protein from the heavy metal, which will greatly reduce the protein yield and increase the production cost and man-hours

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] (1) Soilless cultivation of heavy metal-free rice.

[0016] Cultivate rice according to the method of conventional soilless cultivation rice, wherein the formula of soilless cultivation nutrient solution is as follows: every liter of soilless cultivation nutrient solution contains 0.6 g of potassium nitrate, 0.1 g of calcium nitrate, 0.6 g of magnesium sulfate, and 0.4 g of ammonium phosphate Potassium sulfate 0.2 g, potassium dihydrogen phosphate .2 g, ferrous sulfate 15 mg; boric acid 6 mg, manganese sulfate 4 mg, zinc sulfate 1 mg, copper sulfate 0.2 mg, ammonium molybdate 0.4 mg.

[0017] (2) Processing method of heavy metal-free rice protein: use the soilless-cultured heavy-metal-free rice in step (1) as raw material, and soak for 2 hours with rice:water ratio of 1:1. After crushing the material through 60 mesh, carry out liquefaction standardization, wherein the amount of enzyme added is 1%, pH5.8. The standardized material was jet liquefied at 108°C for 3 minute...

Embodiment 2

[0019] (1) Soilless cultivation of heavy metal-free rice.

[0020] Cultivate rice according to the method of conventional soilless cultivation rice, wherein the formula of soilless cultivation nutrient solution is as follows: every liter of soilless cultivation nutrient solution contains potassium nitrate 0.6~0.8 g, calcium nitrate 0.2 g, magnesium sulfate 0.7 g, ammonium phosphate 0.45 g; potassium sulfate 0.25 g, potassium dihydrogen phosphate 0.25 g, ferrous sulfate 20 mg; boric acid 8 mg, manganese sulfate 5 mg, zinc sulfate 2 mg, copper sulfate 0.25 mg, ammonium molybdate 0.5 mg.

[0021] (2) The processing method of heavy metal-free rice protein: the heavy metal-free rice cultivated without soil in step (1) is used as a raw material, and soaked for 90 minutes with a ratio of rice:water of 1:1.5. After crushing the material through 60 mesh, carry out liquefaction standardization, wherein the amount of enzyme added is 1.5%, and the pH is 6.0. The standardized material w...

Embodiment 3

[0023] (1) Soilless cultivation of heavy metal-free rice.

[0024] Cultivate rice according to the method of conventional soilless cultivation rice, wherein the formula of soilless cultivation nutrient solution is as follows: every liter of soilless cultivation nutrient solution contains 0.8 g of potassium nitrate, 0.3 g of calcium nitrate, 0.8 g of magnesium sulfate, and 0.5 g of ammonium phosphate Potassium sulfate 0.3 g, potassium dihydrogen phosphate 0.3 g, ferrous sulfate 30 mg; boric acid 10 mg, manganese sulfate 6 mg, zinc sulfate 1-3 mg, copper sulfate 0.3 mg, ammonium molybdate 0.6 mg.

[0025] (2) Processing method of heavy metal-free rice protein: use the soilless-cultured heavy-metal-free rice in step (1) as a raw material, and soak for 1 hour with rice:water ratio of 1:2. After crushing the material through 60 mesh, carry out liquefaction standardization, wherein the amount of enzyme added is 2%, pH6.2. The standardized material was jet liquefied at 108°C for 5 m...

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PUM

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Abstract

The invention relates to a production method of heavy-metal-free rice protein. The production method comprises soilless culture of heavy-metal-free rice and processing of rice protein, wherein each liter of a soilless culture nutrient solution in the formula comprises the following components by weight: 0.6g-0.8g of potassium nitrate, 0.1g-0.3g of calcium nitrate, 0.6g-0.8g of magnesium sulfate, 0.4g-0.5g of ammonium phosphate, 0.2g-0.3g of potassium sulfate, 0.2g-0.3g of potassium dihydrogen phosphate, 15mg-30mg of ferrous sulfate, 6mg-10mg of boric acid, 4mg-6mg of manganese sulfate, 1mg-3mg of zinc sulfate, 0.2mg-0.3mg of copper sulfate and 0.4mg-0.6mg of ammonium molybdate; after soaking and grinding the rice, carrying out liquidation standardization, wherein the enzyme dose is 1%-2%, and the pH is 5.8-6.2; and carrying out jetting liquidation at 108 DEG C and dextrinization at 95-98 DEG C on materials, filtering, collecting rice residue with high protein concentration, inputting the rice residue into a slurry mixing tank, injecting hot water of 80-95 DEG C to blend into a protein fluid with the concentration of 10%-30%, carrying out colloid milling and dehydration, drying, and grinding. According to the production method, heavy metal pollution in soil is fundamentally avoided, a production process is simplified, the production cost is lowered, the work hour is shortened, meanwhile, the yield of protein is increased, and the taste and the flavor of protein are guaranteed.

Description

technical field [0001] The invention belongs to the field of food processing. Background technique [0002] Rice protein has the characteristics of reasonable balance of amino acid composition, high biological value and high nutritional value, which can be compared with eggs, milk and beef. In addition, rice protein is an anti-prototype protein, which will not cause allergic reactions and can be used to produce food for infants and young children. Because of the unique nutritional and health functions of rice protein. In recent years, the market demand for rice protein has become more and more intense. [0003] The production of rice protein with rice dregs, a by-product of starch sugar production, can not only obtain high-concentration rice protein, but also save production costs. It is one of the means of domestic production of rice protein. However, no matter whether rice or rice dregs are used to produce rice protein, since the raw rice is easy to accumulate heavy met...

Claims

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Application Information

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IPC IPC(8): C05G1/06A23J3/14
CPCA23J3/14A23J3/34A23J3/346C05B7/00C05G5/20C05C3/00C05C5/02C05C5/04C05D1/02C05D5/00C05D9/02
Inventor 罗舜菁刘成梅钟业俊伍立新陈林刘伟钟俊桢陈军占柳菁胡旭涛
Owner NANCHANG UNIV
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