Detection method of illegal additive melamine formaldehyde resin in forage raw materials

Abstract

The invention discloses a detection method of illegal additive melamine formaldehyde resin in forage raw materials. According to the detection method, the spectrums of the forage raw materials are collected using a near-infrared spectrometer, and the spectrums are subjected to pre-treatment so as to obtain training samples; and iVISSA method sensitive on classes is adopted for waveband selection. The detection method is capable of realizing effective selection of the characteristic peaks of melamine formaldehyde resin much different from that of the other ingredients, increasing detection efficiency and accuracy. A certain amount of the training samples are selected for model construction. According to a model construction method, Entropy Weight local-Hyperplane k-nearest-neighbor (EWHK) is adopted for reference experiments, so that detection on adulterate products is realized. The detection method is capable of increasing detection accuracy, is rapid in detection, and high in stability.

Description

technical field [0001] The invention relates to a detection method of melamine formaldehyde resin, an illegal additive in feed raw materials, and belongs to the technical field of feed safety analysis in agriculture. Background technique [0002] With the rapid development of the feed industry, the use of more abundant protein and biological additives has brought new safety hazards to its quality and safety. As one of the largest livestock and poultry production countries in the world, my country has a severe situation of livestock and poultry food safety, and food safety incidents emerge in endlessly. Unscrupulous traders mix illegal additives or low-priced similar raw materials into feed to reduce costs and seek high profits. These illegal additives not only cause irreparable harm to animals themselves, but also seriously threaten human health. [0003] Melamine-formaldehyde resin (MF) is a polymer obtained by the reaction of melamine and formaldehyde. Also known as mel...

AI Technical Summary

Problems solved by technology

[0008] The technical problem of the present invention is to overcome the deficiencies of the prior art, and provide a simple, fast and efficient detection method for the illegal additive melamine-formaldehyde resin in feed raw materials, so as to solve the problem of complex operation, poor repeatability and correlation of spectral data in the prior art. high sex problem

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