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Synergistic removal method for copper and mercury in corn protein

A synergistic removal method and corn gluten technology, applied in the field of synergistic removal of copper and mercury in corn gluten, can solve problems such as the impact of protein food safety

Inactive Publication Date: 2017-01-04
NANCHANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Copper and mercury are attached to protein, which affects the food safety of protein

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] (1) Slurry: Take 100 kg of corn gluten powder, add 900 kg of drinking water, and mix well; (2) Substitute: add 2.4 kg of tartaric acid, then adjust the pH of the slurry to 4.4, add 260 grams of zinc gluconate, mix well, 50 Keep at ℃ for 2.6 hours, stirring continuously during this period, the stirring speed is 3400 rpm; (3) chelation: add 2.6 kg of malic acid, adjust the pH of the zein slurry to 3.4, stir at 42 °C for 76 minutes, and the stirring speed is 3500 rpm (4) conditioning: the slurry is dehydrated, and 920 kg of drinking water is added to the corn gluten dregs, and mixed thoroughly; (5) adsorption: the pH of the corn gluten slurry is adjusted to 5.6, and 2.8 kg of microcrystalline cellulose (average particle size diameter of 370 mesh), stirred at 47°C for 70 minutes, and the stirring speed was 3600 rpm; (6) solid-liquid separation: solid-liquid separation to remove insoluble solids; (7) pH adjustment: adjust zein within 10 minutes The pH of the slurry reaches 6...

Embodiment 2

[0023] (1) Mixing: Take 100 kg of corn gluten powder, add 880 kg of drinking water, and mix well; (2) Substitute: add 2.2 kg of tartaric acid, then adjust the pH of the slurry to 4.2, add 240 grams of zinc gluconate, mix well, 48 Keep at ℃ for 2.4 hours, during which the stirring speed is 3200 rpm; (3) chelation: add 2.4 kg of malic acid, adjust the pH of the zein slurry to 3.2, stir at 40 ° C for 74 minutes, and the stirring speed is 3300 rpm (4) conditioning: the slurry is dehydrated, and 900 kg of drinking water is added to the corn gluten dregs, and mixed thoroughly; (5) adsorption: the pH of the corn gluten slurry is adjusted to 5.4, and 2.6 kg of microcrystalline cellulose (average particle size diameter of 350 mesh), stirring at 45°C for 68 minutes at a stirring speed of 3400 rpm; (6) solid-liquid separation: solid-liquid separation to remove insoluble solids; (7) pH adjustment: adjust zein within 10 minutes The pH of the slurry reaches 6.5; (8) Sterilization, dehydrati...

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PUM

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Abstract

The invention relates to a synergistic removal method for copper and mercury in corn protein. The method comprises the following steps: taking of corn protein powder, pulp conditioning, substitution, chelation, blending, adsorption, solid-liquid separation, pH regulation, sterilization, dehydration, drying and the like. The method can effectively reduce the content of copper and mercury in the corn protein effectively and synchronously without affecting the sensory quality and nutritional value of the corn protein.

Description

technical field [0001] The invention relates to a method for synergistically removing copper and mercury in zein, belonging to the field of agricultural product processing. Background technique [0002] Corn protein has a good amino acid composition ratio and high digestibility. It is an excellent vegetable protein and has important utilization value. In recent years, with the development of industry and mining, the problem of heavy metal pollution has gradually been exposed. Copper and mercury are attached to protein, which affects the food safety of protein. After being eaten, proteins rich in copper and mercury can be enriched in organisms, seriously endangering human health. Contents of the invention [0003] The invention aims to provide a simple and cost-effective method for reducing copper and mercury content in zein and improving food safety. [0004] A method for synergistic removal of copper and mercury in zein, comprising the following steps: [0005] (1) Mi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A23J3/14
CPCA23J3/14
Inventor 夏冬华
Owner NANCHANG UNIV
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