Based on the leading fluorescence quantitative FPOCT technology platform, Shanghai Festo Biotech has developed a rapid detection system for mycotoxin fluorescence, including aflatoxin rapid detector and aflatoxin series fluorescence quantitative detection strip, which combines colloidal gold fast. The enzyme-linked immunoassay and the accurate characteristics of the chromatographic method can quickly and accurately determine the aflatoxins in the feed ingredients, finished feed products, milk and dairy products within 8 min, including aflatoxin B1, aflatoxin M1, etc. Easy to operate, only one step of loading, no standard, no standard curve, fluorescence immunoassay meter reading, accurate and reliable, and can be printed on site, the accuracy is highly consistent with the HPLC test results, aflatoxin Rapid detection and control provides a new technical means for all types of feed and dairy processing companies, third-party testing agencies and government-related regulatory agencies. DC 3V With Lithium Battery Smoke Alarm Dc 3V With Lithium Metal Battery Smoke Alarm,Lithium Metal Alarm,Lithium Metal Smoke Alarm,Lithium Metal Battery Smoke Alarm Guangdong Isafenest Co.,Ltd. , https://www.isfenest.com
Shanghai Flight Test - Helping the safety and future of dairy products
I. Introduction
With the continuous improvement of people's living standards, people pay more and more attention to food camps and health, and the demand for dairy products is also growing. Babies are the largest consumer group of dairy products. The quality and safety of dairy products will be related to the development and growth of the next generation, and even to the safety of life. Of course, the quality and safety of dairy products is also related to the vital interests of herders.
In recent years, the production of dairy industry has maintained a good development trend. However, there are still some problems in the production of dairy products in China. The risk factors are prominent: the cost of dairy farming increases, some retail investors lose money, and they withdraw from the breeding process; Frequent diseases; raw milk quality and safety incidents have occurred, seriously affecting consumers' confidence in state-owned brands and so on. In the future development process, whether China's dairy production can proceed smoothly, it is important to study the risk factors of dairy production and prevent milk production.
According to the data, a questionnaire survey was conducted on typical dairy producers in China, and the basic conditions of milk sources, production and processing conditions, safety guarantee system, quality of technicians, testing conditions and means, and major safety hazards of the dairy companies under investigation were investigated. Investigation and analysis, the analysis results are as follows.
2. Classification of exposed quality and safety issues
(a) Natamycin as a food additive in the wild range of sour milk
(2) Some enterprises still use animal hydrolyzed protein instead of milk protein and dextrin to replace lactose and other milk components to reduce product costs and deceive consumers.
(3) Aflatoxin M1 was detected in some dairy products.
(4) The positive detection rate of antibiotics in various dairy products is relatively high.
(5) The detection rate of antiseptic and bactericide in dairy products is high.
Take Aspergillus flavus M1 as an example:
Aflatoxin M1 is one of the internationally recognized strong carcinogenic teratogenic mutagenic substances. One set of data was: Aflatoxin M1 was detected in 17 of 279 dairy samples, accounting for 6.09% of the total sample. Among them, 176 formula milk powder samples were detected, 9 samples were detected aflatoxin M1, accounting for 5.11%; 27 samples were tested for pasteurized milk, 4 were detected aflatoxin M1, accounting for 14.81%; There were 63 milk samples, and 4 of them detected aflatoxin M1, accounting for 6.35%. The producers of aflatoxin M1 samples were mainly distributed in 7 provinces and cities such as Sichuan, Heilongjiang and Tianjin. The monitoring of aflatoxin M1 in dairy products was more positive, mainly related to the mildew of dairy cows under mild or hot conditions in summer, and was mildewed by aflatoxin. It was fed with contaminated aflatoxin. The feed not only reduces the production performance and physical fitness of the cow, but also the aflatoxin B1 in the feed is transferred to the milk at a conversion rate of 65 to 100:1 to become aflatoxin M1, which directly endangers human health.
Therefore, the quality of feed directly affects the quality of dairy products. Only by controlling from the source can the safety of dairy products be guaranteed.
Third, the comparison of existing detection methods for mycotoxins
At present, the detection methods of mycotoxins are mainly divided into two categories: confirmation methods and rapid methods. The confirmation method is mainly based on physical and chemical equipment such as thin layer chromatography (TLC), gas chromatography (GC), high pressure liquid chromatography (HPLC) and various combined technologies such as gas chromatography-mass spectrometry (GC-MS), liquid quality. Combined use (HPLC-MS), etc.; rapid methods are mainly based on immunochemical analysis methods such as immunoaffinity column-fluorescence detection (IAC-FLD), enzyme-linked immunosorbent assay (ELlSA) and colloidal gold immunochromatography Law and so on.
Fourth, Shanghai fly test biological aflatoxin fluorescence quantitative rapid detection system in the field of feed and dairy detection