Preparation method of resin material for patulin removal

Abstract

The invention discloses a preparation method of a resin material for patulin removal. The resin material is prepared from raw materials of hydroxyapatite, graphene, phenolic resin, polyvinyl nitrile,polyurethane, ethyl orthosilicate and the like; according to the invention, the hydroxyapatite and the graphene are selected to modify the phenolic resin to improve the mechanical properties of a resin matrix and prolong the service life of the resin matrix, then the modified phenolic resin is combined with molecularly imprinted nanomaterials, and then an imprinted locus matched with patulin molecules are formed by utilizing 4-hydroxy-indole as a functional monomer, so that the specific adsorption removal of the patulin is realized. The raw materials selected by the invention have no toxic orside effects on a human body, and have the characteristics of high strength, large adsorption amount, no secondary pollution and self-cleaning; and the preparation technology is simple, easy to operate, and suitable for large-scale use of juice production, feed processing and the like.

Description

technical field [0001] The invention relates to the technical field of food safety, in particular to a preparation method of a patulin-scavenging resin material. Background technique [0002] Patulin is a worldwide pollutant. The contamination of patulin in food and feed production is quite common. It is widely found in products such as apples, grapes, oranges, pineapples, corn, cheese and animal feed, especially in fruits and The patulin contamination in products that use fruits as raw materials is the most serious. Patulin in fruits is mainly produced by Penicillium expanses, which not only causes fruit rot, but also secretes a large amount of patulin into fruit tissues. In the fruit juice processing industry, if rotten fruit is mixed into the raw materials, the fruit juice produced will have varying degrees of patulin residues, which will cause serious harm to the health of consumers. [0003] The current methods of controlling patulin mainly include the following: phys...

AI Technical Summary

Problems solved by technology

Organic molecularly imprinted polymers are available for different monomers and are widely used, but when this material is in contact with different mobile phases, it is easy to collapse and swell, thereby reducing the adsorption performance; compared with organic polymers, all-inorganic molecules Imprinted polymers have the characteristics of ideal mechanical strength, large specific surface area, and better photochemical stability; hybrid molecular imprinted materials have the advantages of both inorganic and organic imprinted materials, showing better application prospects, but due to the There are still many problems in imprinting in terms of hybridization methods, material selection, and synthesis methods. Therefore, the synthesis and application of hybrid molecularly imprinted materials are still in the exploratory stage.