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[China Instrument Network Instrument R&D] On June 13, a good news came from the Shenzhen Branch of the Guangdong Provincial Science and Technology Commission, and the major industry research project undertaken by the Shenzhen Institute of Inspection and Quarantine weighed 2013-027: The rapid detection technology for agricultural product safety "pass the inspection. This project fills the gap in the current lack of automatic and efficient detection methods for China's agricultural product testing market.
The project uses nanotechnology, superparamagnetic technology, immunochromatography and optoelectronic technology to develop a miniature hand-held time-resolved digital detector and an integrated food safety detector, and developed four types of rapid detection suitable for agricultural product safety. Test strips, including 10 kinds of rapid detection test strips for animal epidemics, 5 kinds of rapid test strips for pesticide residues in fruits and vegetables, 10 kinds of rapid test strips for aquatic products and residues of veterinary drugs in aquatic products, residues of veterinary drugs in dairy products, and illegal additives, etc. Rapid detection of 25 test strips for factors, and rapid detection of strips of salbutamol, clenbuterol, ractopamine, and milk (melamine lactams, cephalexin, tetracyclines) in meat products. Aminoglycosides (streptomycin, kanamycin, gentamicin), triple test strips for rapid detection in milk. The technical indicators such as the specificity, sensitivity and accuracy of the food safety rapid test strip developed by the project all meet the requirements of relevant national standards.
The implementation of the project solved the problems of the pre-processing complexity and detection time-consuming of the common agricultural and veterinary drug residues and illegal additives, pathogenic pathogens of animal diseases (such as the H7N9 bird flu virus) and other hazards in agricultural products, and achieved the safety inspection of agricultural products. Four new breakthroughs: First, the developed integrated food safety detector can realize sample pre-processing, chemical pollutant detection, pesticide and veterinary drug residue detection, and foodborne pathogen detection, significantly reducing the cost of instrument procurement for testing organizations; It is a miniature hand-held time-resolved digital detector that has been developed for less than 4 seconds/time, has a detection coefficient of variation of less than 5%, has reached the leading domestic level, and has achieved digital quantitative detection of food safety hazard factors on the spot; The detection reagents can only detect the technical bottleneck of a single or single compound and develop a highly sensitive on-site detection test strip. The fourth is the integrated use of fluorescent nanoparticles, superparamagnetic, monoclonal antibodies, time resolution and other technologies to develop animals. Diseases, residues of pesticides in fruits and vegetables, residues of veterinary drugs in aquatic products, and veterinary drugs in dairy products The high-sensitivity series of rapid detection reagents such as retained and illegal additives have broken through the technical bottleneck of traditional food safety rapid detection reagents with long sample preparation time, slow quantitative detection, and difficulty in on-site detection, and provided advanced technical means for food safety on-site law enforcement. .
It is understood that the 1.3 billion people in the country consume agricultural products such as grains, vegetables, and meat daily up to 20 billion tons, and the annual circulation is over 7 trillion tons. The monitoring, early warning and prevention and control of pathogenic pathogens of animal diseases in agricultural products, residues of pesticides in fruits and vegetables, residues of veterinary drugs in dairy products and dairy products, including raw material production, processing, and consumption, and related to entry-exit inspection and quarantine, medical and health, environmental protection, etc. Many departments involve a wide range of tasks and have a large workload. Routine detection methods are not only time-consuming and labor-intensive, but also costly. They can no longer meet the actual needs of China's agricultural product industry development. The rapid inspection product developed in this project meets the market demand and has a broad market prospect. It can provide strong technical support for China's agricultural product safety, reduce the occurrence of food safety accidents, promote the adjustment of China's agricultural industrial structure, and ensure the safety of agricultural products and foreign trade in China. In particular, it is of great significance to ensure the safety of our city's supply of agricultural products to Hong Kong.
(Original title: Shenzhen's agricultural products rapid detection technology has achieved a major breakthrough)