In the twinkling of an eye, Loong Boat Festival 2019 has arrived. In this traditional festival, eating Zongzi and racing Loong Boat has become a custom passed down from generation to generation. For consumers, while enjoying the Dragon Boat Festival holiday, they must also pay attention to food safety.
In recent years, food safety incidents have occurred frequently in China. In order to ensure people's food safety, testing instruments have been widely used. As for Zongzi eaten on the Loong Boat Festival, the picking season of Zongzi leaves is usually from July to October every year, after the Loong Boat Festival that year. Therefore, almost all the Zongzi leaves made in the previous year were used to make Zongzi, and the color would change. In order to make the old zongzi leaves look better, many unscrupulous merchants use chemicals to turn them green. The use of chemicals can lead to high levels of heavy metals on the leaves of zongzi, such as lead, mercury, and arsenic, which are harmful to the human body. At the same time, in the production process of Zongzi, additives, microorganisms, mold and other problems will also cause food safety problems.

In order to let people eat healthy and safe food on Loong Boat Festival, many places in China have carried out spot checks on relevant food through detection instruments, and achieved good results. Recently, the State Administration for Market Regulation conducted laboratory tests on 479 batches of samples from over 70 brands, and the sampling results showed a pass rate of; The 81 batches of Zongzi and egg products were sampled and inspected by Chengdu Municipal Supervision and Administration Bureau, and all the inspected items were qualified; Shenzhen Municipal Administration of Supervision and Administration sampled 200 batches of seasonal food (Zongzi) in production, circulation and catering links, all of which passed the test; The Hangzhou Municipal Supervision Bureau sampled 36 batches, all of which were qualified.
Passing the inspection undoubtedly gives people a reassurance pill. In fact, if you want to test Zongzi, you can't do without the use of relevant testing standards and testing instruments. At present, the detection standards for Zongzi issued in China mainly include SB/T 10377-2004 Zongzi, GB 19295-2011 Food Standard Quick Frozen Noodles and Rice Products, GB 29921-2013 Food Standard for Settling Down Pathogens in Food *, GB 2762-2017 Food Standard for Settling Down Pollutants in Food *, GB 2760-2014 Food Standard for Use of Food Additives, etc. The detection items involved mainly include: Sudan Red I, Sudan Red II, Sudan Red III, Sudan Red IV and other non edible substances; Benzoic acid and its sodium salt, sorbic acid and its potassium salt, saccharin sodium, acesulfame and other food additives; Microbial indicators such as total bacterial count, coliform bacteria, Staphylococcus aureus, Salmonella, mold, and commercial sterility; Peroxide value, residual aluminum content, sodium saccharin, saccharin, dehydroacetic acid, propionic acid (circulation link). With the continuous improvement of the standard, the detection of Zongzi will become more standardized.
At the same time, the detection of Zongzi is also inseparable from the use of a large number of detection instruments. At present, the main detection instruments used in the sampling process include thin film chromatography instruments and liquid chromatography instruments for detecting food additives, as well as the newly emerged immunoaffinity column fluorescence spectrophotometer; Microbial photoelectric detection system for microbial detection and newly emerged test strips; Commonly used food safety testing instruments include general component analysis instruments, trace element analysis instruments, pesticide residue analysis instruments, veterinary drug residue analysis instruments, fungal toxin analysis instruments, food additive analysis instruments, and other hazardous substance analysis instruments.
According to relevant standards and the use of instruments, food can be quickly tested to ensure people's food safety. At the same time, for detection instrument companies, active research and development are necessary to safeguard people's dining table safety and achieve rapid development of the enterprise. In Bengbu City, Anhui Province, staff use copper sulfate rapid detection devices, heavy metal analyzers, and other equipment to test food. From food sampling and soaking, reagent reaction, to machine inspection to test results, the testing speed is fast and the accuracy is high. The short testing time is only 10 minutes, and the long testing items will not exceed 2 hours.
With the continuous development of technology, detection instruments will become more intelligent, convenient, and accurate. At the same time, the development of the currently popular food traceability system will make the food industry safer in the future, and harmful foods will be exposed.