Method for reducing heavy metal in mussel boiling liquid by using chitose

The technology of cooking liquid and chitosan is applied to the reduction of heavy metals in mussel cooking liquid. The use of chitosan to treat heavy metals in mussel cooking liquid can solve the problems of great harm and animal poisoning, and achieve the reduction of heavy metal cadmium. and the effect of chromium content

Active Publication Date: 2007-08-08
ZHEJIANG GONGSHANG UNIVERSITY
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Problems solved by technology

[0004] It is generally believed that trivalent chromium is more har...

Method used

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  • Method for reducing heavy metal in mussel boiling liquid by using chitose

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Experimental program
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Effect test

Embodiment 1

[0019] Get 35 ml of mussel cooking liquid, add 227 mg of chitosan, adjust the pH value of the solution to 7.5, heat for 7.3 hours at a temperature of 73 degrees Celsius and a shaking speed of 271r / min, then cool it at 4000r / min After centrifugation for 15 minutes, the supernatant solution obtained after filtration is the treated mussel cooking liquid. The cadmium content in the treated cooking liquor was reduced by 89%, and the chromium content was reduced by 21%. After testing, the processed mussel cooking liquid has met the requirements of export standards.

Embodiment 2

[0021] Get 35 ml of mussel cooking liquid, add 250 mg of chitosan, adjust the pH value of the solution to 7.0, and heat it for 7.5 hours at a temperature of 70 degrees Celsius and a shaking speed of 225 r / min, then cool it at 4000 r / min After centrifugation for 15 minutes, the supernatant solution obtained after filtration is the treated mussel cooking liquid. The cadmium content in the treated cooking liquor was reduced by 69% and the chromium content was reduced by 24%. After testing, the processed mussel cooking liquid has met the requirements of export standards.

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Abstract

The invention relates to a method for using chitose the heavy metal in the boiling solution of mussel, which comprises that adding 5-15ml chitose into each milliliter of mussel solution, adjusting the pH value to 6-8.0, heating to 60-80Deg. C, vibrating at 150-300r/min, cooling, and eccentrically filtering. The invention can reduce the contents of cadmium and chromium and whole the nourishments of mussel.

Description

technical field [0001] The invention belongs to the technical field of food processing and environmental protection, and relates to a method for reducing heavy metals in mussel cooking liquid, in particular to a method for treating heavy metals in mussel cooking liquid by using chitosan. Background technique [0002] Mussel cooking liquid is a by-product produced in the process of processing mussels into frozen or dried products. It contains a large amount of soluble protein, polysaccharides, lipids, etc., and is very rich in nutrients. With the further development of mussel processing, a large number of The cooking liquid cooking liquid is discharged into the sea, and the pollution to the environment is extremely serious. Therefore, the development and utilization of mussel cooking liquid can not only make full use of resources, but also reduce environmental pollution. As a filter-feeding organism, mussels can accumulate a large amount of heavy metals, resulting in some he...

Claims

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Application Information

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IPC IPC(8): A23L1/015A23L1/39A23L1/33A23L1/29A23L1/03A61L2/16A23L5/20A23L17/40A23L23/00A23L29/00A23L33/00
Inventor 戴志远梁辉
Owner ZHEJIANG GONGSHANG UNIVERSITY
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