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Rapid cadmium removal agent in bivalve shellfish and preparation method of agent

A bivalve mollusk and removal agent technology, which is applied in the direction of food ingredients as antioxidants, food science, application, etc., can solve the problems of high cost, unsatisfactory effect, long time for removal, etc., and achieves convenient operation and improved Eating safety and economic benefits, and the effect of facilitating promotion

Inactive Publication Date: 2019-09-20
OCEAN UNIV OF CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The technical problem to be solved in the present invention is that the removal of cadmium in the body of Chlamys farreri adopts the mode of temporary cultivation in seawater, but the cost of this method is high, the time used for removal is long, and the effect is not ideal

Method used

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  • Rapid cadmium removal agent in bivalve shellfish and preparation method of agent
  • Rapid cadmium removal agent in bivalve shellfish and preparation method of agent
  • Rapid cadmium removal agent in bivalve shellfish and preparation method of agent

Examples

Experimental program
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Effect test

Embodiment 1

[0033] Take 0.4g of vitamin C, 3g of disodium edetate, 0.9g of calcium chloride, 0.5g of zinc sulfate, and 0.1g of ferric chloride, mix them and dissolve them in 5L of seawater with a salinity of 35, and then remove the Put the clam scallops without sand into the seawater of the agent, and raise them temporarily for 12-36 hours. Dead individuals were picked out during the holding phase. After the temporary breeding, a certain number of scallops were randomly selected, shelled, and the water on the surface of the scallops was drained, and the cadmium was determined according to the above method.

Embodiment 2

[0035] Take 0.4g of tea polyphenols, 3g of disodium ethylenediaminetetraacetic acid, 0.9g of calcium chloride, 0.5g of zinc sulfate, and 0.1g of ferric chloride, mix them and dissolve them in 5L of seawater with a salinity of 35. Put the clam scallops without sand into the seawater in which the agent is removed, and raise them temporarily for 12 to 36 hours. After the temporary breeding, a certain number of scallops were randomly selected, shelled, and the water on the surface of the scallops was drained, and the cadmium was determined according to the above method.

Embodiment 3

[0037] Take 0.4g of tea polyphenols, 3g of sodium citrate, 1.4g of zinc sulfate, 2.8g of calcium chloride, and 0.3g of ferric chloride, mix them and dissolve them in 5L of seawater with a salinity of 35, and add Put sand-removed scallops in the middle, and raise them temporarily for 12-36 hours. After the temporary breeding, a certain number of scallops were randomly selected, shelled, and the water on the surface of the scallops was drained, and the cadmium was determined according to the above method.

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Abstract

The invention belongs to the technical field of aquaculture, in particular to a rapid cadmium removal agent in bivalve shellfish and a preparation method of the agent. The agent comprises 0.5-3g of an antioxidant, 2-5g of a chelating agent and 0.5-5g of metal salt, wherein the metal salt is zinc sulfate, calcium chloride and ferric chloride added according to the mass ratio of 5: 9: 1 to 4: 10: 1. The removing agent has high removing rate for Chlamys farreri in a short time, does not cause serious secondary pollution, has no obvious toxic effect on human bodies, has low removing cost, is simple and convenient to operate, is beneficial to removing heavy metal cadmium from related shellfish farms, and improves edible safety and economic benefits of shellfish.

Description

[0001] Technical field: [0002] The invention belongs to the technical field of aquaculture, and in particular relates to a rapid removal agent for cadmium in bivalve molluscs and a preparation method thereof. [0003] Background technique: [0004] With the development of social industrialization, a large amount of waste water is discharged into rivers, lakes and seas, resulting in serious seawater pollution, especially heavy metal pollution. Scallops belong to bivalve molluscs and are one of the eight seafood treasures in my country. They have very high nutritional value, but because they eat by filtering seawater, the accumulation of heavy metals is particularly serious. At present, many scholars have found that Among the bivalve molluscs cultured in my country, the content of cadmium in Chlamys farreri exceeds the standard by more than ten times, and cadmium is a heavy metal with a long biological half-life and high toxicity, which will cause great damage to the human liver...

Claims

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Application Information

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IPC IPC(8): A23L5/20
CPCA23L5/276A23L5/27A23V2002/00A23V2200/02A23V2250/708A23V2250/1578A23V2250/1642A23V2250/1592A23V2250/214A23V2250/2132
Inventor 刘炳杰刘庆康杨超孟祥红曹立民
Owner OCEAN UNIV OF CHINA
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