Method for removing inorganic arsenic in kelp

A technology of inorganic arsenic and kelp, applied in the fields of application, food preparation, food science, etc., can solve the problem of excessive inorganic arsenic in kelp, achieve the effects of ensuring food safety, simple operation, and improving removal rate

Inactive Publication Date: 2015-07-15
CHINA JILIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is to provide a method for removing inorganic arsenic from kelp for the problem of excessive inorganic arsenic in kelp

Method used

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  • Method for removing inorganic arsenic in kelp

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Embodiment 1

[0012] A method for removing inorganic arsenic from kelp, which comprises the following steps in turn: ① soak the dried kelp in ultrapure water for 6 hours, and then rinse it with ultrapure water for 3-5 times; ② put the kelp treated in the previous step into Ultrasonic treatment was carried out in an edible acetic acid solution with a concentration of 1g / L, the ultrasonic frequency was set at 25kHz, the treatment time was 5min, and the temperature of the edible acetic acid solution was 15°C; and dry.

Embodiment 2

[0014] A method for removing inorganic arsenic from kelp, which comprises the following steps in turn: ① soak the dried kelp in ultrapure water for 6 hours, and then rinse it with ultrapure water for 3-5 times; ② put the kelp treated in the previous step into Ultrasonic treatment was carried out in an edible acetic acid solution with a concentration of 5g / L, the ultrasonic frequency was set to 35kHz, the treatment time was 15min, and the temperature of the edible acetic acid solution was 25°C; and dry.

Embodiment 3

[0016] A method for removing inorganic arsenic from kelp, which comprises the following steps in turn: ① soak the dried kelp in ultrapure water for 6 hours, and then rinse it with ultrapure water for 3-5 times; ② put the kelp treated in the previous step into Ultrasonic treatment was carried out in an edible acetic acid solution with a concentration of 5g / L, the ultrasonic frequency was set at 35kHz, the treatment time was 20min, and the temperature of the edible acetic acid solution was 35°C; and dry.

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Abstract

The present invention discloses a method for removing inorganic arsenic in kelp. The method comprises the following steps: 1, soaking dry kelp in ultrapure water for 3-8h, then rinsing the kelp with ultra-pure water for 3-5 times; 2, putting the kelp in an edible acetic acid solution with a concentration of 1-10 g / L and carrying out ultrasonic treatment, wherein the ultrasonic frequency is set to 25-100kHz, the processing time is 5-20min, and the edible acetic acid solution temperature is 15-35 DEG C; and 3, rinsing the kelp with ultra-pure water and carrying out drying. According to the method for removing inorganic arsenic in the kelp, operation is simple, the inorganic arsenic removal rate can reach more than 96%, and the food safety of the kelp can be ensured.

Description

technical field [0001] The invention belongs to the technical field of food processing, and in particular relates to a method for removing inorganic arsenic from kelp. Background technique [0002] In recent years, the rapid economic development of coastal areas has caused a large amount of industrial pollution, so that the water quality in coastal areas has declined year by year, and the scope of coastal pollution has continued to expand. The algae breeding bases are concentrated in the offshore waters, and some of the sea areas are mainly polluted by heavy metals, and the heavy metal pollution is mainly toxic heavy metals such as mercury, chromium, cadmium, and lead. As a non-metallic element, arsenic is usually included in the scope of heavy metals because its source and hazards are similar to those of heavy metals. If heavy metal elements are directly discharged into rivers, lakes or seas without treatment, or enter soil, they will pollute these rivers, lakes, seas an...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A23L1/015A23L1/337A23L5/20A23L17/60
Inventor 朱诚丁艳菲沈淑妤黄善霞江琼孙骏威
Owner CHINA JILIANG UNIV
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