Processing method for removing chromium and arsenic in kelp

A processing method, kelp technology, applied in the functions of food ingredients, food ultrasonic treatment, food heat treatment, etc., can solve the problems of lack of efficient removal of chromium and arsenic processing methods in kelp, to solve the problem of discoloration, fresh and crisp taste, Appearance bright green effect

Active Publication Date: 2018-10-26
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 purpose of the invention is to provide a processing method for removing chromium and arsenic in sea-tangle, and to solve the technical problem of lacking a processing method for efficiently removing chromium and arsenic in sea-tangle in the prior art

Method used

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  • Processing method for removing chromium and arsenic in kelp
  • Processing method for removing chromium and arsenic in kelp
  • Processing method for removing chromium and arsenic in kelp

Examples

Experimental program
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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. The method mainly comprises the following steps of S1 raw material cleaning and foaming, S2 calcium hydroxide solution infiltration and color protecting, S3 high temperature and high pressure fluidization, S4 high temperature steam deodorization, S5 rinsing and cooling, S6 removal of chromium and arsenic in citric acid solution, S7 airing and storing after pure water cleaning. Calcium hydroxide is adopted for performing color protecting on the kelp, then, the high temperature fluidization technology is used for processing the kelp, hot steam is used for removing fishy smell in the kelp, and finally the citric acid solution is used for processing and removing chromium and arsenic in the kelp. By adopting the scheme, chromium and arsenic in the kelp are removed, operation is easy, the heavy metal removal efficiency is high, the chromium removal rate reaches up to 70% or more, and the arsenic removal rate reaches up to 90% or more; the calcium hydroxide solution is used for performing color protecting processing, the influence caused by later period citric acid processing on the color and taste of the kelp is reduced, and the processed kelp is bright green in appearance and fresh 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 serious water pollution in coastal 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 seaweed products are the most polluted, with lead, cadmium, and arsenic exceeding the standard rate. The research by Nie Xinhua and others found that kelp has a very strong ability to enrich arsenic, and the enrichment factor can be as high as 1500 times; and the enrichment of arsenic will increase with the increase ...

Claims

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Application Information

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Patent Type & Authority Applications(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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