Method for removing heavy metal ions in fruit and vegetable juice by using chelate resin in cooperative treatment

A technology of chelating resin and heavy metal ions, applied in food science and other directions, can solve the problems of destruction of nutrients, turbidity of fruit and vegetable juice, influence of nutrients, etc., and achieves the reduction of heavy metal ion content, convenient removal, and strong specificity. Effect

Inactive Publication Date: 2010-08-18
BEIJING OKEANOS TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The adsorption method is easy to adsorb the beneficial nutrients in fruit juice and vegetable juice, but it is difficult to adsorb heavy metal ions, so the application of the adsorption method is greatly limited.
At the same time, it is easy to cause secondary pollution, and the regeneration cycle of the adsorbent is not easy to realize
[0007] The ion exchangers used in the ion exchange treatment generally show a certain acidity and alkalinity, which has a certain destructive effect on the beneficial nutrients in fruit juices and vegetable juices; at the same time, the charges carried by the ion exchangers themselves may also affect the juice It will affect the nutrients in the vegetable juice, and it is easy to cause the fruit juice and vegetable juice to be cloudy
This limits the application of ion exchange in the removal of heavy metal ions from fruit and vegetable juices
[0008] The research on the removal of heavy metal ions by biochemical methods has just started, the theory of this method is not yet mature, the composition of cell components involved in metal complexation and the biosynthesis process are still unclear, and the kinetics of heavy metal elements being adsorbed or complexed is lacking. data, and cannot carry out process design and scale-up and economic balance, etc.
Therefore, there is no industrialized example of this technology in removing heavy metals from fruit and vegetable juices

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Get 1000 milliliters of mango juice produced by a certain company, add SQ407 (styrene-based loaded iron) resin 5g produced by Jiangsu Suqing Group, 2g 330 type resin of Anhui Samsung Resin Technology Co., Ltd. and D402 macropore produced by Shanghai Huazhen Technology Co., Ltd. 22.5 grams of styrene chelating resins were stirred vigorously after 90 minutes, filtered and collected the filtrate.

[0029] Varian 700 type inductively coupled plasma emission spectrometry (ICP-AES) was used to measure the heavy metal content in the mango juice before and after treatment, and the results are shown in Table 1:

[0030] Table 1

[0031] The heavy metal elements determined

[0032] The heavy metal elements determined

[0033] It can be seen that the heavy metal content in the mango juice after the synergistic treatment of various chelating resins has not been detected, and has reached the "Hygienic Standard for Fruit and Vegetable Juice Beverages" (GB 19297-20...

Embodiment 2

[0035] Get 500 milliliters of apple juice produced by a certain company, add 3.5 g of SQ407 (styrene-based loaded iron) resin produced by Jiangsu Suqing Group, 2 g of D201 type resin produced by Hangzhou Zhengguang Resin Co., Ltd. and Zhengzhou Xidian Electric Power Co., Ltd. 12.5 g of C900 type resin sold by Resin Sales Co., Ltd. was stirred vigorously for 90 minutes, filtered, and the filtrate was collected.

[0036] Use Varian 700 type inductively coupled plasma emission spectrometry (ICP-AES) to measure the heavy metal content in the apple juice before and after treatment, and the results are shown in Table 2:

[0037] Table 2

[0038] The heavy metal elements determined

[0039] It can be seen that the heavy metal content in the apple juice after the synergistic treatment of various chelating resins has not been detected, reaching the "Hygienic Standard for Fruit and Vegetable Juice Beverages" (GB 19297-2003).

Embodiment 3

[0041] Take 2000 milliliters of pumpkin juice produced by a certain company, add 15g of SQ407 (styrene-based loaded iron) resin produced by Jiangsu Suqing Group, 2g of LS-3000 type resin produced by Xi'an Lanshen Special Resin Co., Ltd., Zhengzhou Xidian Power Resin Sales 50g of C900 type resin sold by Co., Ltd., 4g of 330 type resin of Anhui Sanxing Resin Technology Co., Ltd., stirred vigorously for 75 minutes, filtered, and collected the filtrate.

[0042] Use the Varian 700 type inductively coupled plasma emission spectrometry (ICP-AES) to measure the heavy metal content in the pumpkin juice before and after treatment, as shown in the result table 3:

[0043] table 3

[0044] The heavy metal elements determined

[0045] The heavy metal elements determined

[0046] It can be seen that the heavy metal content in the pumpkin juice after the synergistic treatment of various chelating resins has not been detected, and has reached the "Hygienic Standard for Fr...

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PUM

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Abstract

The invention discloses a method for removing heavy metal ions in fruit and vegetable juice by using chelate resin in cooperative treatment. At least two kinds of chelate resin are added into fruit and vegetable juice needing removing heavy metal irons, the chelate resin includes selective arsenic removing resin, selective hydragyrum removing resin or selective cuprum / nickel removing resin. In the method, by utilizing specific chelations of functional groups of modified chelate resins to different heavy metal irons, more than two kinds of special chelate resin for removing certain heavy metal irons are selected and organically combined so as to effectively, fast and conveniently remove heavy metal irons in fruit and vegetable juice. The method is easy and convenient to use, has fast effect, and is especially suitable for removing heavy metal irons in fruit and vegetable juice on site.

Description

technical field [0001] The invention relates to a method for removing heavy metal ions in fruit and vegetable juices, in particular to a method for removing heavy metal ions in fruit and vegetable juices through coordinated treatment with chelating resins. Background technique [0002] In the past 30 years, with the rapid development of my country's economy, the problem of environmental pollution has become increasingly serious, especially the residue of heavy metals is one of the most serious forms of pollution in our country. Heavy metal pollution refers to environmental pollution caused by heavy metals or their compounds, mainly due to human factors such as mining, exhaust emissions, sewage irrigation, and the use of heavy metal products. After heavy metals pollute soil, air and water, they will enter the food chain and eventually enter the human body. And because of the biomagnification effect, during the progress of the food chain from low-level to high-level, harmful ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A23L2/80
Inventor 许峰高源
Owner BEIJING OKEANOS TECH
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