A method for removing heavy metal lead and cadmium in rice dregs protein

A rice dregs protein and heavy metal technology, which is applied to the preparation method of peptides, chemical instruments and methods, peptides, etc., can solve the problems of high heavy metal lead and cadmium content, which restricts the processing and reuse of rice dregs protein, and achieves easy exposure and convenience The effect of removal and protein structure stretching
CN108864247BActive Publication Date: 2021-07-20NANCHANG UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
NANCHANG UNIV
Publication Date
2021-07-20
Patent Text Reader

Abstract

A method for removing lead and cadmium in rice dregs protein, the multiple carboxylic acid groups of complexing agent citric acid and EDTA‑2Na can effectively complex heavy metal lead and cadmium. After the rice dreg protein is treated with ethanol and hydrogen peroxide, some heavy metal lead and cadmium are complexed with citric acid in acidic conditions. After washing with water, most of the heavy metal lead and cadmium are complexed with EDTA-2Na under high temperature conditions. After repeated washing, The rice dregs protein with low content of lead and cadmium can be obtained, the contents of which are respectively 0.076 and 0.011 mg / kg, which can effectively solve the problem of excessive lead and cadmium content in the existing rice dregs protein. The invention is simple in operation and remarkable in effect, can safely and effectively remove heavy metal lead and cadmium in rice dreg protein, and is suitable for large-scale popularization and application.
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Description

technical field

[0001] The invention relates to the technical field of rice product processing, in particular to a method for removing lead and cadmium in rice dreg protein. Background technique

[0002] Food safety is closely related to everyone and has always been one of the government's most important issues. Rice is the main food crop in my country, and its heavy metal content is an important safety indicator. Although my country's economic development has made great progress, the problem of environmental pollution has become increasingly prominent, including the pollution of agricultural land. Rice is currently the main ration crop for people in our country, and its safety issues are directly related to the health status of every person in the country.

[0003] For rice, the main types of heavy metals contained in it are lead and cadmium. Excessive intake of lead can damage the human nervous system, lead to neurasthenia, indigestion, big head and other symptoms, and ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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