Rapid detection of food products industry is favored

The rapid food testing equipment is mainly used for the rapid detection of pesticide residues, formaldehyde, nitrite, sulfur dioxide, hydrogen peroxide, available chlorine, histamine, volatile base nitrogen, diseased meat and benzoyl peroxide in various foods and agricultural products. Quantitative determination. The use of rapid food testing has enhanced the ability to discover potential food safety hazards in circulation, and has increased the efficiency of supervision and law enforcement.

With the frequent outbreak of food safety problems in recent years, food safety issues have become an urgent problem that China urgently needs to solve. Faced with numerous consumers’ questions about regulatory authorities and suggestions for food safety standards, the General Office of the State Council recently released “2013 Foods”. The “Safety Key Work Arrangements” will deepen the hidden dangers and hidden rules that are common to the industry, and establish a list of potential risks. The inspection of food safety should be advanced to the source of production. This viewpoint has been recognized by many consumers, and it has also triggered the concern of related departments on the detection of pesticide residues and toxic and hazardous substances in food. At present, domestic food safety testing instruments have been developed relatively well. Or, it will usher in a new development climax.

The market for rapid detection of food safety has gradually become clear, including significant rigid demand for capacity building systems, food production, processing and distribution companies. However, due to its simple and rapid features, rapid detection technology has also plagued users in certain senses, such as its accuracy and false positive rate.

To evaluate the effectiveness of fast-checking instruments, the scientific, feasibility and applicability of fast-checking instruments should be evaluated theoretically: whether the principle of fast-checking instruments is correct and reasonable; whether quick-checking instruments are simple and easy to operate; The requirements on the operating environment and personnel, how anti-jamming capability and so on, these factors have a direct impact on the effectiveness of fast-checking instruments. Then some indicators of the rapid inspection instrument: accuracy, detection limit, precision, repeatability, reproducibility, anti-interference, and full analysis time were measured to evaluate the effectiveness of the rapid inspection instrument.

Accuracy of test results to be considered

In the interview with the food testing room, the reporter saw that the staff members were making lentil pesticide residue test through a quick-checking instrument. The same lentils had two different results. The first time the pesticide residue inhibitory index was 414 The second time that the inhibitory rate indicator was 384, and the benchmark for testing, the critical indicator, was 400. The manufacturers who provided us with food rapid testing products also emphasized that when the fast-checking results fluctuate, it is best to do three fast inspections and take the average value as a result. It is easy to have quality problems in foods such as fruits and vegetables, grain and oil, frozen goods and seasonings. For key varieties, we usually do several more tests. The head of the National Food Inspection Office said.

In this regard, Zhang Hongyan, deputy section chief of the Haidian district's urban and rural warehouse supermarket business division, has carried out self-inspection on supermarket foods. The accuracy rate of fast inspections needs to be improved urgently. Objectively speaking, the accuracy rate of most regular fast-track products on the market is currently about 70%. Because there are many manufacturers of fast-check products, the accuracy of fast-checking products varies from product to product. In the actual operation of the quick inspection product, there will be false positives, that is, the quick inspection has detected problems, but after further tests conducted by a state-qualified laboratory, there is no problem; there are also false negative cases, that is, there is no problem in quick inspection. However, after further tests conducted by nationally qualified laboratories have identified problems, these situations can sometimes cause food problems to escape the net and sometimes cause miscarriage of justice.

Rapid detection of instrument investment potential for accelerated release

Investment in the food inspection industry is currently focused on testing equipment and supporting reagents. There are hundreds of thousands of formal food processing enterprises in China registered in industry and commerce. Except for enterprises, all levels of food and agricultural product quality supervision and inspection agencies, import and export inspection and quarantine bureaus, universities and scientific research institutions are major customers of the instrumentation equipment market. The procurement of food testing instruments includes conventional physics and chemistry analysis instruments, rapid screening testing instruments, food quality component detection instruments, various types of pesticides, veterinary drugs, food additives, heavy metals, microbes, and other detection instruments, involving a wide variety of products. Among them, there are special equipment for rapid screening and general analytical instruments that can be used in various fields such as petrochemicals, the environment, and medicine. The investment potential is not limited to one area of ​​food safety.

The prosperity of the testing equipment market is partly because local food processing companies have increased their investment in food safety equipment and research funding; on the other hand, domestic low-end testing instruments have entered the market, and price levers have spurred rising market demand. Among the current indicators of food safety, the detection of parameters such as residual pesticides, veterinary drugs, fishery drugs, food additives, etc. is the most concerned. Therefore, the improvement of the technology level of low-end and rapid-detection instruments is an inevitable factor to promote market growth.