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Synergic removal method of copper and mercury in flax proteins

A synergistic removal method, flax technology, applied in plant protein processing, food ingredients as pH modifiers, food adsorption, etc., can solve problems such as the impact of protein food safety

Inactive Publication Date: 2017-02-01
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 flax protein powder, add 960 kg of drinking water, and mix well; (2) Substitute: add 2.4 kg of citric acid, then adjust the pH of the slurry to 4.7, add 270 g of zinc gluconate, mix well, Keep at 56°C for 2.0 hours, stirring continuously at a stirring speed of 3800 rpm; (3) chelation: add 2.2 kg of tartaric acid to adjust the pH of the flax protein slurry to 3.7, stir at 44°C for 74 minutes at a stirring speed of 3800 rpm / min; (4) conditioning: the slurry is dehydrated, and 920 kg of drinking water is added to the flax protein slag, and mixed thoroughly; (5) adsorption: the pH of the flax protein slurry is adjusted to 5.6, and 2.8 kg of microcrystalline cellulose (average particle size diameter of 220 mesh), stirring at 44°C for 96 minutes at a stirring speed of 3200 rpm; (6) solid-liquid separation: solid-liquid separation to remove insoluble solids; (7) pH adjustment: adjust the flax protein within 10 minutes The pH of the slurry reaches 6....

Embodiment 2

[0023] (1) Slurry: Take 100 kg of flax protein powder, add 940 kg of drinking water, and mix well; (2) Substitute: add 2.2 kg of citric acid, then adjust the pH of the slurry to 4.5, add 250 g of zinc gluconate, mix well, Keep at 54°C for 1.8 hours, stirring continuously at a stirring speed of 3600 rpm; (3) chelation: add 2.0 kg of tartaric acid, adjust the pH of the flax protein slurry to 3.5, stir at 42°C for 72 minutes, and stir at a speed of 3600 rpm / min; (4) conditioning: the slurry is dehydrated, add 900 kg of drinking water to the flax protein residue, and mix thoroughly; (5) adsorption: adjust the pH of the flax protein slurry to 5.4, add 2.6 kg of microcrystalline cellulose (average diameter of 200 mesh), stirring at 42°C for 94 minutes at a stirring speed of 3000 rpm; (6) solid-liquid separation: solid-liquid separation to remove insoluble solids; (7) pH adjustment: adjust the flax protein within 10 minutes The pH of the slurry reaches 6.2; (8) Sterilization, dehydr...

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PUM

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Abstract

The invention relates to a synergic removal method of copper and mercury in flax proteins. The method comprises the following steps: taking flax protein powder, carrying out size mixing, substituting, chelating, conditioning, adsorbing, carrying out solid-liquid separation, regulating the pH value, sterilizing, dewatering, drying and the like. The method can effectively synchronously lower the copper and mercury contents in the flax proteins, and can not influence the sensory quality and nutritive value of the flax proteins.

Description

technical field [0001] The invention relates to a method for synergistically removing copper and mercury in flax protein, belonging to the field of agricultural product processing. Background technique [0002] Flax 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 method with simple method and reasonable cost to reduce the content of copper and mercury in flax protein and improve food safety. [0004] The method for synergistic removal of copper and mercury in flax protein comprise...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A23J3/14A23L5/20
CPCA23J3/14A23V2002/00A23V2200/214A23V2200/06A23V2250/032A23V2250/056A23V2250/51084A23V2300/02
Inventor 夏冬华
Owner NANCHANG UNIV
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