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Method for reducing contents of arsenic and mercury in buckwheat protein through adsorption and substitution

A technology of adsorption and substitution, buckwheat, applied in plant protein processing, food processing, food ingredients as chelating agents, etc., can solve problems such as the impact of protein food safety

Inactive Publication Date: 2017-02-15
NANCHANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Arsenic 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

[0020] (1) Mixing: Take 100 kg of buckwheat protein powder, add 1200 kg of drinking water, and mix well; (2) Chelation: Add 1.6 kg of tartaric acid and 2.2 kg of citric acid, then adjust the pH of the slurry to 3.6, mix well, and store at 42°C Keep under high temperature for 2.6 hours, during which the stirring speed is 3200 rpm; (3) adsorption: adjust the pH of the buckwheat protein slurry to 4.2, add 3.0 kg of microcrystalline cellulose (average particle size is 240 mesh), and stir at 52 ° C For 46 minutes, the stirring speed was 4400 rpm; (4) solid-liquid separation: carry out solid-liquid separation to remove insoluble solids; (5) replace: adjust the pH of the buckwheat protein slurry to 5.6, add 240 grams of zinc gluconate, at 44 ° C Stir for 66 minutes at a stirring speed of 2400 rpm; (6)) Conditioning: adjust the pH of the buckwheat protein slurry to 6.5 within 15 minutes; (7) Sterilization, dehydration and drying: the slurry is sterilized and then dehydrated , drying t...

Embodiment 2

[0022] (1) Mixing: Take 100 kg of buckwheat protein powder, add 1220 kg of drinking water, and mix well; (2) Chelation: Add 1.8 kg of tartaric acid and 2.4 kg of citric acid, then adjust the pH of the slurry to 3.8, mix well, and store at 44°C Keep under high temperature for 2.8 hours, during which the stirring speed is 3400 rpm; (3) adsorption: adjust the pH of the buckwheat protein slurry to 4.4, add 3.2 kg of microcrystalline cellulose (average particle size is 240 mesh), and stir at 54 ° C For 46 minutes, the stirring speed was 4400 rpm; (4) solid-liquid separation: carry out solid-liquid separation to remove insoluble solids; (5) replace: adjust the pH of the buckwheat protein slurry to 5.6, add 240 grams of zinc gluconate, at 44 ° C Stir for 64 minutes at a stirring speed of 2200 rpm; (6)) Conditioning: adjust the pH of the buckwheat protein slurry to 6.3 within 15 minutes; (7) Sterilization, dehydration and drying: the slurry is sterilized and then dehydrated , drying t...

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Abstract

The invention relates to a method for reducing the contents of arsenic and mercury in buckwheat protein through adsorption and substitution. The method disclosed by the invention comprises the following steps of taking buckwheat protein powder, performing pulp blending, performing chelating, performing adsorption, performing solid-liquid separation, performing substitution, performing conditioning, performing sterilization, performing dehydration, performing drying and the like. According to the method disclosed by the invention, the contents of the arsenic and the mercury in the buckwheat protein can be effectively and synchronously reduced, and besides, the feeling quality and the nutrient value of the buckwheat protein cannot be influenced.

Description

technical field [0001] The invention relates to reducing the content of arsenic and mercury in buckwheat protein by an adsorption substitution method, and belongs to the field of agricultural product processing. Background technique [0002] Buckwheat 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. Arsenic and mercury are attached to protein, which affects the food safety of protein. After being eaten, proteins rich in arsenic and mercury can accumulate in living 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 arsenic and mercury in buckwheat protein and improve food safety. [0004] Adsorption substitution method ...

Claims

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Application Information

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IPC IPC(8): A23J3/18A23L5/20
CPCA23J3/18A23V2002/00A23V2200/214A23V2250/044A23V2250/056A23V2250/51084A23V2300/50A23V2250/548
Inventor 刘军平
Owner NANCHANG UNIV
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