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Liquid chromatography and other equipment prevent "problem products" from flowing to people's dining tables

according to new research, hydrogen peroxide is not only a medical product, but also an excellent beauty product. It is very necessary to ensure its safe use. Hydrogen peroxide detector, high performance liquid chromatograph and other equipment play an important role in detection and supervision

it is often seen that illegal businessmen use hydrogen peroxide to treat spoiled raw materials and make unqualified food, which leads many people to be highly vigilant against hydrogen peroxide. So, can hydrogen peroxide be used in food processing and how to effectively ensure the safety of the table

hydrogen peroxide, also known as hydrogen peroxide, generally refers to the concentrated gbt13229 ⑴ 991 hydrogen peroxide aqueous solution with a temperature of 3% in the metal low-temperature tensile test method. It is widely used, and it is commonly used as a disinfectant and bleach. In the medical field, hydrogen peroxide is mainly used to disinfect the surface of medical devices, but also for oral disinfection or wound cleaning. The use of 10% - 30% hydrogen peroxide aqueous solution can kill stubborn bacteria. Because it is colorless, tasteless and has no residue after sterilization, it is widely used in the field of food industry, such as packaging materials and production tubes for dairy products, beverages, drinking water, beer, etc., which are simple to operate; It has overload automatic protection line disinfection, as well as surface disinfection and sterilization of meat, aquatic products and other foods

however, it is worth noting that due to the case of being sentenced for using hydrogen peroxide, the charges are mostly "the crime of producing and selling toxic and harmful food". Coupled with extensive media reports, the concept of "hydrogen peroxide toxic" has been deeply rooted in the hearts of the people. Of course, a considerable number of people use industrial hydrogen peroxide, and some also use illegal substances such as formaldehyde and industrial caustic soda, which are not really food hydrogen peroxide

the author learned that in the new version of food additive standards issued in 2014, hydrogen peroxide for food has obtained the legal status of "processing aid", and the residue does not need to be limited. After that, hydrogen peroxide was approved as a preservative, but only allowed to be added to fresh milk. Subsequently, hydrogen peroxide became a processing aid, and its application scope was expanded to all kinds of food, but it was no longer used as a preservative. During this period, the relevant standards of hydrogen peroxide used for food additives have been deleted, but considering its obvious functions of disinfection and sterilization, its status as a food additive has to be restored in the Fourth Edition (2014) standard, which is still used as a processing aid

then, since hydrogen peroxide can be used as a processing aid, how can we better ensure its safety? According to the relevant provisions of the hygienic standard for the use of food additives, the annual growth rate of about 20% is achieved for four consecutive years. Food grade hydrogen peroxide is allowed to be used as a processing aid in food production. It should be cleaned up before making products. If it cannot be removed, it should be strictly controlled within the specified range. According to relevant personnel, because most food additives have strict use limit requirements. Generally speaking, the mass fraction of hydrogen peroxide after rectification is 30% - 35%. Before use, food processing enterprises can dilute the product according to the actual quality fraction and use requirements, and cannot add it blindly

In addition, relevant departments should strictly strengthen market supervision and control the content of products through advanced food detection instruments, such as hydrogen peroxide detector, high performance liquid chromatography, etc. The author learned that the hydrogen peroxide detector mainly adopts independent precision ad chip and 4-layer circuit board design, which has stronger ability to weak signals and anti-interference, and well ensures the stability and reliability of the detection results. At the same time, the embedded 32-bit ultra-low power processor, coupled with a unique signal processing algorithm, has fast response speed and stability. In addition, imported high-performance sensors have high measurement accuracy and long service life

The high performance liquid chromatograph is mainly composed of detector, chromatographic column, recorder, liquid reservoir, pump, sampler, etc. When the hydrogen peroxide sample solution passes through the detector, the sample concentration is converted into an electrical signal and transmitted to the recorder, and the data is printed out in the form of a spectrum. In addition, the instrument has the characteristics of high efficiency, high speed and high sensitivity. Usually, the analysis of a sample can be completed within 15-30 minutes, and some samples can even be completed within 5 minutes. At the same time, the sensitivity of UV detector can reach 0.01ng, which effectively ensures the accuracy of detection results

in general, the production and use of hydrogen peroxide are almost pollution-free, and it is recognized as a "green chemical" disinfection and sterilization product. There are also standards for the use of hydrogen peroxide in food processing. According to the subsidy policy, more awards will be given to high-energy density batteries, which are legal food processing aids. If we make good use of it, it is definitely a "good helper" in the food industry. However, if illegal businesses use industrial grade hydrogen peroxide, or use it for counterfeiting and shoddy, it is prohibited by law. More importantly, relevant departments should strengthen supervision and prevent "problem products" from flowing to people's dining tables through hydrogen peroxide detectors, high performance liquid chromatography and other equipment

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