Preparation of molecule marking polymer capable of removing penicillins antibiotics in fresh milk

Abstract

The present invention relates to a preparation method for molecular imprinted polymer which can get rid of the penicillin-like antibiotics in the fresh milk. The present invention belongs to the food chemistry field. The preparation method lie in that template molecule, functional monomer, cross-linking agent and the initiator are mixed together to be oxygenated, thermal polymerized, grinded, cleaned and dried in vacuum to get molecular imprinted polymer. The present invention is simple and controllable. The required experimental devices are simple. The generated molecular imprinted polymer is of strong stability, long storage time, large adsorption capacity and fast adsorption speed. The counter- imprinted molecular is of strong memory and no toxin and any side effect. The molecular imprinted polymer can effectively get rid f the penicillin-like antibiotics in the fresh milk and can be used in the examination of penicillin-like antibiotics in the fresh milk. The present invention is of very broad prospects for development and application.

Description

Technical field: [0001] The invention relates to the field of food chemistry, in particular to a method for preparing a molecularly imprinted polymer capable of removing penicillin antibiotics in fresh milk. Background technique: [0002] According to the results of a survey conducted by the General Administration of Quality Affairs of the People's Republic of China on the northern Chinese market, among nearly 800 samples of dairy products, antibiotic residues exceeded the standard among the unqualified items of dairy product quality; Sampling inspections have been carried out, and the positive detection rate of antibiotic residues in some provinces and cities is as high as 30%. From this point of view, the status quo of antibiotic residues in milk in my country is not optimistic. The main sources of antibiotics in raw milk are: first, the antibiotics used to treat sick cows during lactation will be excreted from the cows; Antibiotic residues; Third, due to poor management o...

AI Technical Summary

Problems solved by technology

In the past, there were no explicit regulations on the sanitary indicators of antibiotic residues in milk in my country. Until October 2001, the Ministry of Agriculture issued and implemented the "Industry Standards for Pollution-Free Food Raw Milk", which clarified the hygienic indicators of fresh milk that "antibiotics must not be detected". An industry standard, but our country has not strictly implemented it, resulting in the problem of antibiotic residues in milk and dairy products in our country has not been resolved, and has caused people to worry about the safety of milk

At present, the detection and control of antibiotic residues in fresh milk is a complicated process. Although we already have relatively good detection methods, it is far from enough for us to be satisfied with the detection of antibiotic residues in milk. What kind of treatment the milk will go through, and what kind of supporting treatment methods will be adopted are equally important.