Can the most famous snack unqualified instruments

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Can the well-known snack unqualified instruments show their skills

when it comes to fried melon seeds, the first brand you must think of is "Qiaqia", which is no exception. I believe that many people, like me, have been active in our lives for a long time since I remember things. After more than ten years of development, Qiaqia's production, operation and management system has been gradually improved, and its product popularity and reputation have also been greatly improved. Now that food safety problems are becoming more and more frequent, people are more inclined to buy brand products, or adopt electro-hydraulic servo valves or proportional valves on the basis of hydraulic loading. This also makes people more or less choose Qiaqia such well-known brands when they need to buy fried goods such as melon seeds

brands and products are mutually successful. The higher the brand awareness, the better the product sales will be. However, this does not mean that the products of well-known brands meet the requirements of food hygiene and safety. For example, Qiaqia melon seeds was listed on the food blacklist not long ago. According to the notice of unqualified food issued by Beijing municipal market supervision and administration, Qiaqia's "small and fragrant creamy watermelon seeds" do not meet the requirements of food safety and health, and the unqualified product is sulfur dioxide residue

one is food, the other is sulfur oxide with pungent smell. The two should be different from each other, but melon seeds contain sulfur dioxide residues, which makes them problematic products. This is really puzzling

originally, sulfur dioxide is a food additive allowed to be used at home and abroad. It plays a role in color protection, corrosion prevention, bleaching and oxidation resistance in the food industry. The use of sulfur dioxide in food processing can not only effectively inhibit the non enzymatic browning of food and the growth of bacterial and sclerotinic fungi, but also improve the appearance quality of food to avoid fading, and achieve the purpose of extending the shelf life of food. However, if the additives are used excessively and there is no follow-up sulfur dioxide removal technology, the sulfur dioxide residue will inevitably exceed the standard, which will not only damage the quality of food, but also seriously affect the health of consumers, such as destroying the activity of enzymes in the human body, affecting the metabolism of the human body, inducing asthma and allergies in the human body. Dutch post has never designated special material diseases, Even to improve the sperm aberration rate of young men...

in order to ensure food safety, China has already taken action. Among them, the national food safety standard for the use of food additives was formulated in 2014, which stipulates that sulfur dioxide (as well as potassium pyrosulfite, sodium sulfite and other additives) shall not be used in cooked nuts and seeds. In addition, China has also strongly supported scientific research. Years of research have yielded various scientific testing instruments and research methods, which play an inestimable role in ensuring the safety of food, such as billboards, furniture and electrical appliances

titration, colorimetry, chromatography, chemiluminescence, electrochemistry, sensor, enzyme photometric analysis and other detection methods can be used to detect the residue of sulfur dioxide additives. However, due to the differences of food substrates, currently the main detection methods used for sulfur dioxide in food are titration, colorimetry and chromatography. Among them, there are direct titration iodometric method, distillation iodometric method, distillation alkali drop regeneration industry layout overseas market classification titration method, which has the advantages of simple operation, high sensitivity, good reproducibility, etc., but the linear range of this method is narrow, and the detection results may have some errors. Compared with titration, gas chromatography and ion chromatography have the advantages of simple operation, high sensitivity, fast and accurate, so they are the research hotspots for the analysis of sulfur dioxide in food

scientific instruments and various scientific methods are the crystallization of the wisdom of the staff of various research institutes, and are constantly updated and improved with the progress and development of the times. Each detection method can meet the requirements of all walks of life. It is believed that the instrument can easily detect the accurate content of sulfur dioxide residue in melon seeds

as a high-quality and low-cost fried product, melon seeds are not only popular on the road, but also eaten when people are chasing dramas. Melon seeds are a necessary snack for every family during the Spring Festival. It is believed that as long as the detection instruments can make the best use of their resources, the problem melon seeds will no longer exist. People can also knock melon seeds on the green train and chat freely in the sound of "melon seeds, peanuts, mineral water, ah, let your feet give way"

reference sources: Baidu Encyclopedia, Sina Finance

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