Overnight watermelon can't eat The rate of bacterial growth in watermelon overnight depends on two factors. First, the extent of food contamination, and the second is the preservation environment for food. The number of colonies after the cut watermelon covered with plastic wrap is higher. This can not be regarded as only a problem of cling film. Whether the cutter and the cutting board of the cut watermelon have been cleaned and sterilized is also the key. Do not pack cold storage watermelon wrapped plastic wrap? Experts said that if the refrigerator has a separate storage of watermelon space, will not cause odor, will not cause loss of water, it is not recommended to cover the plastic wrap. The watermelons that haven't been eaten really shouldn't be put for a long time. The cut watermelons are usually placed for a maximum of 4 hours under normal temperature, and it is safe to refrigerate in time. Zhao Yongyi, director of clinical nutrition at the First Affiliated Hospital of Guangdong College of Pharmacy pointed out the problems: First of all, the method of preserving watermelon in this experiment is normal temperature. However, most people know that overnight watermelon needs to be refrigerated; secondly, the accidentality of the experiment is too strong. Big, the “hundreds of millions†of bacteria that appeared in the test may come from air, knives, or even cling film. The relationship with “overnight†is uncertain. Finally, these bacteria are not pathogenic bacteria, and they need to be further identified. "But to be sure, watermelons that haven't been eaten at the normal temperature shouldn't be put for a long time. It's safe to keep them cool in time." Zhao Yongyi said. According to food experts, after wrapping the cling film, a relatively closed space is formed between the fruit and the cling film, which provides better conditions for the bacteria to multiply. However, “when plastic wrap is produced at high temperatures, it is impossible to carry bacteria on its own. The bacteria in cling film should be contaminated after unpacking and storage.†How to store watermelon There is still knowledge about how to store it. Here are two ways for you to introduce: Method one, cover the surface with a clean plastic wrap. Method two, use a clean spoon to dig out the melon into a clean, sealable box. However, the time of refrigerating should not be too long, and watermelon is a cool thing. People with bad stomach should not eat more, especially ice watermelon. Therefore, the refrigerated watermelon should be taken out of the refrigerator and eaten later. Of course, it is recommended that everyone cut melons to eat immediately, one to avoid the rest, then fall into the trouble of whether to waste, and the other one is to avoid excessive waste of vitamins in watermelon. Obviously it is eaten melon to enjoy summer heat and pleasure, but don’t end up turning into melancholy. Eat watermelon notes The expert strokes are not as good as the tangled bacteria. According to the results of the experiment, Zhou Kang, an associate professor at the Sichuan Agricultural University’s School of Food, said that 3,800 bacteria per gram are not too numerous. For example, on the raw meat bought by the public, there are probably 100,000 bacteria per gram. Even more. Zhou Kang said that because meat and watermelon are consumed in different ways, many bacteria of raw meat will die after being fried. According to GB17401-2003 “Puffed Food Sanitary Standards†issued by the State, it is safe to eat less than 10,000 bacteria per gram of food. "Comparatively, the number of bacteria in watermelon overnight is much lower than this number." Zhou Kang said. In this experiment, there may be many sources of 3,800 bacteria per gram, which may be tainted with bacteria on the knife, or may be stained with bacteria on the plastic wrap. According to the number of bacteria detected, it is better to cut down on the knife used to cut watermelon instead of tangling it with the preservation of the watermelon. "If the knife is contaminated, the number of bacteria is far more than this number." Zhou Kang suggested that the public must use a fruit knife and a kitchen knife separately. Think about it. If a freshly cut knife is used, it should be cleaned with cold water. To cut watermelon, a lot of bacteria do not say, because it may contain pathogenic bacteria, there is a great risk, it is recommended to cut the knife with boiling water before cutting. Inflation Devices,Cardiology angiography,PTCA balloon inflation devices,coronary angiography Anesthesia Medical Co., Ltd. , https://www.honestymed.com