There are three methods to identify
1. The method of compensation for goods. The taste of ethyl maltol is slightly bitter, slightly spicy, and astringent. The currently popular counterfeit ethyl maltol has a sweeter taste.
2. Heating identification method. Place a small amount of ethyl maltol on tinfoil (the tinfoil in cigarettes can also be used) and heat it with an alcohol lamp or lighter. The ethyl maltol will melt after being heated. If you continue to heat, the melted ethyl maltol will evaporate completely. No impurities are left behind. When using the above method for counterfeit or low-purity ethyl maltol, a burnt substance will be left on the tin foil.
3. Comprehensive solution. First, observe the dissolution of ethyl maltol in cold water. Ethyl maltol with a purity of 99.2 is difficult to dissolve (solubility in water is 1:55), and it floats and will not precipitate quickly; secondly, A clear solution will form quickly with hot water. If ferrous sulfate is dropped into the solution, it will turn red quickly, and its purity can be determined based on the redness.
Extended information
Ethyl maltol is an ideal food additive that is safe, non-toxic, widely used, effective and rarely used. It is an ideal food additive for tobacco, food, beverages and meat products. , seafood, flavors, fruit wine, daily cosmetics and other good flavor and sweetness synergists, it has a significant effect on improving and enhancing the aroma of food, plays a sweetening effect on sweets, and has antibacterial and antiseptic properties, which can extend the storage period of food. .
According to the GB2760 hygienic standard for the use of food additives, it cannot be added to fresh dishes. Excessive consumption of ethyl maltol has an impact on the human liver, causing bones and joints to become brittle and cancerous in advance, and other diseases. Severe cases may also cause headaches, nausea, vomiting, difficulty breathing, and even damage the liver and kidneys, causing greater harm to the human body.
Baidu Encyclopedia-Ethyl Maltol