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A processing method for removing chromium and arsenic in kelp

A processing method and technology of kelp, which is applied in the field of food processing, can solve the problems of lack of efficient processing methods for removing chromium and arsenic in kelp, and achieve the effect of bright green appearance, simple process, and fresh and crisp taste

Active Publication Date: 2021-04-16
合肥小刺猬信息科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The object of the present invention is to provide a processing method for removing chromium and arsenic in kelp, and to solve the technical problem of lacking a processing method for efficiently removing chromium and arsenic in kelp in the prior art

Method used

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  • A processing method for removing chromium and arsenic in kelp
  • A processing method for removing chromium and arsenic in kelp
  • A processing method for removing chromium and arsenic in kelp

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Raw materials: dried kelp products. Follow the steps below: S1. Raw material processing: Soak the cleaned and removed kelp in pure water for 8 hours to make the kelp fully absorb water and soak until the weight of the kelp no longer increases. Take it out and rinse it with clean water; S2. Protect the color : the kelp after S1 treatment is placed in a concentration of 1g / L calcium hydroxide solution for color protection treatment for 5 minutes, and then rinsed in clear water for 3 times to remove the residual calcium hydroxide solution on the surface of kelp; S3, high temperature and high pressure flow Chemical treatment: the kelp washed and soaked in S2 is treated with high-temperature fluidization technology, the temperature is 110°C, and the processing time is 30s; S4, deodorization: the kelp treated in S3 is fumigated in hot steam at 100°C for 2 minutes , to remove the fishy smell of kelp; S5, rinsing and cooling: place the kelp after S4 deodorization treatment in c...

Embodiment 2

[0030]Raw material: fresh kelp. Follow the steps below: S1. Raw material processing: Soak the cleaned and removed kelp in pure water for 4 hours to make the kelp fully absorb water and soak until the weight of the kelp no longer increases. Take it out and rinse it with clean water; S2. Protect the color : After the S1 treatment, the kelp is placed in a calcium hydroxide solution with a concentration of 1g / L for color protection treatment, and then rinsed in clear water for 5 times to remove the residual calcium hydroxide solution on the surface of the kelp; S3, high temperature and high pressure fluidization Treatment: The kelp after S2 cleaning and soaking is treated with high-temperature fluidization technology, the temperature is 90°C, and the processing time is 10s; S4, deodorization: Fumigate the kelp after S3 treatment in 95°C hot steam for 1min, To remove the fishy smell of kelp; S5, rinsing and cooling: place the kelp after S4 deodorization treatment in clean water and...

Embodiment 3

[0032] Raw material: fresh kelp. Follow the steps below: S1. Raw material processing: Soak the cleaned and removed kelp in pure water for 3 hours to make the kelp fully absorb water and soak until the weight of the kelp no longer increases. Take it out and rinse it with clean water; S2. Protect the color : After the S1 treatment, the kelp is placed in a calcium hydroxide solution with a concentration of 2g / L for color protection treatment, and then rinsed in clear water for 5 times to remove the residual calcium hydroxide solution on the surface of the kelp; S3, high temperature and high pressure fluidization Treatment: The kelp washed and soaked in S2 is treated with high-temperature fluidization technology at a temperature of 90°C and the processing time is 10s; S4, deodorization: the kelp treated in S3 is fumigated in hot steam at 98°C for 2 minutes, To remove the fishy smell of kelp; S5, rinsing and cooling: place the kelp after S4 deodorization treatment in clean water an...

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Abstract

The invention provides a processing method for removing chromium and arsenic in kelp, which mainly includes the following steps: S1 raw material cleaning and foaming, S2 calcium hydroxide solution infiltration and color protection, S3 high temperature and high pressure fluidization, S4 high temperature steam for deodorization , S5 rinsing and cooling, S6 citric acid solution to remove chromium and arsenic, S7 pure water washing, drying and storage. The invention uses calcium hydroxide to protect the color of the kelp, then uses high-temperature fluidization technology to treat the kelp, uses hot steam to remove the fishy smell in the kelp, and finally uses citric acid to remove chromium and arsenic in the kelp. Adopting the scheme of the present invention to remove chromium and arsenic in kelp has simple operation, high removal efficiency of heavy metals, the removal rate of arsenic is as high as 70%, and the removal rate of chromium is as high as 90%; the calcium hydroxide solution is used for color protection treatment Reduce the impact of later citric acid treatment on the color and taste of kelp, making the treated kelp bright green in appearance and crisp in taste.

Description

technical field [0001] The invention relates to the technical field of food processing, in particular to a processing method for removing chromium and arsenic in kelp. Background technique [0002] Kelp is a seaweed plant that grows in the ocean. It is high in dietary fiber, low in calories, and rich in iodine and other nutrients. It is a daily dish for people. Kelp processing is also one of the pillar industries of my country's aquaculture industry. In recent years, due to the serious water pollution in coastal sea areas, excessive heavy metals in seafood have become an urgent problem to be solved. Some scholars have tested a variety of aquatic products and found that the pollution of seaweed products is the most serious, among which lead, cadmium, and arsenic have a high rate of exceeding the standard. The research by Nie Xinhua and others found that kelp has a strong ability to enrich arsenic, and the enrichment factor can be as high as 1500 times; and the enrichment of ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A23L5/20A23L5/41A23L5/30
CPCA23V2002/00A23L5/20A23L5/21A23L5/27A23L5/32A23L5/41A23V2200/048A23V2250/032A23V2250/1578A23V2300/24A23V2300/48
Inventor 不公告发明人
Owner 合肥小刺猬信息科技有限公司
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