Preparation method of microbial cadmium removal absorbent and application of absorbent in cadmium removal of powder food

A technology of microorganisms and adsorbents, applied in the application of cadmium removal from powder food, the field of preparation of microbial cadmium removal adsorbents, can solve the problems such as the difficulty of separating microbial cadmium removal adsorbents from powdery raw materials, and achieve easy separation and reduce Effect of cadmium content
CN108467862AInactive Publication Date: 2018-08-31WUHAN POLYTECHNIC UNIVERSITY
7 Cites 4 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
WUHAN POLYTECHNIC UNIVERSITY
Publication Date
2018-08-31
Estimated Expiration
Not applicable · inactive patent

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
  • Figure 3
    Figure 3
Patent Text Reader

Abstract

The invention discloses a preparation method of a microbial cadmium removal absorbent and an application of the absorbent in cadmium removal of the powder food. The preparation method of the microbialcadmium removal absorbent comprises the following steps of: diluting a lactobacillus plantarum solution with water after centrifugation to form a lactobacillus plantarum suspension, dissolving polyvinyl alcohol and sodium alginate in distilled water, adding the lactobacillus plantarum suspension and kieselguhr for stirring to form a mixed solution, adding the mixed solution into a CaCl2 solutionfor cross-linking reaction to form a microbial pellet, and separating the microbial pellet from the CaCl2 solution to form the microbial cadmium removal absorbent. When the microbial cadmium removal absorbent is applied to cadmium removal treatment of the powder food with the excessive cadmium, the heavy metal cadmium in a raw material is absorbed by acid production capability and chemical structures of microorganisms and good absorbability of the kieselguhr; a cadmium content in the powder food with the excessive cadmium can be reduced significantly; and the cadmium is easy to separate.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The invention relates to the technical field of food processing, in particular to a preparation method of a microbial cadmium removal adsorbent and its application in powder food cadmium removal. Background technique

[0002] For foods with excessive heavy metals, such as rice, corn, soybeans and other foods with excessive heavy metal cadmium, it is necessary to remove cadmium from the food to reduce the cadmium content to meet the edible standard. The following uses rice with excessive cadmium as an example to illustrate.

[0003] At present, the methods used to reduce cadmium in rice with cadmium exceeding the standard mainly include finishing, deep processing, water immersion, pickling and microbial adsorption. Among them, the reduction rate of cadmium in finishing processing is too low, and the time and energy required for deep processing Excessive consumption and high cost, the water immersion method has the disadvantages of low cadmium reduction ...

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
Login to View More