Often eating leftovers causes cancer? Stop putting the charges on nitrites

Original title: Often eating leftovers causes cancer? Don't put the crime on nitrite head
With "a family of three detected cancer only because of often eating leftovers" and other news spread widely on the Internet, leftovers into some people's homes very embarrassing existence, simply put is to throw away the pity, eat worry. People also formed a common understanding of leftovers, that is, the nitrite inside the overnight dish exceeded the standard, eating the overnight dish will lead to cancer. So, what is nitrite? Are nitrites in leftovers really carcinogenic? How do people handle leftovers properly?
According to the Qilu Evening News, nitrite is a class of inoromic compounds, the main components are sodium nitrite, sodium nitrite white to pale yellow powder or particles, salty taste, soluble in water. Nitrites in food are mainly used as colorants and preservatives, converted from nitrates added to food, and converted from vegetables that are never fresh.
nitrites themselves are not carcinogenic, and trace amounts of nitrites are even good for lowering blood pressure and preventing heart disease, Great Wall.com reported. However, although it is not carcinogenic in itself, nitrites react with the decomposition products of proteins to form nitrosamines, nitrosamides, nitrosine compounds, which are indeed carcinogenic. Moreover, the environment in our stomachs is suitable for the formation of nitrosamines, which may indeed increase the risk of stomach cancer.
nitrites are harmful to humans depends mainly on their content. According to the China Medical Daily, for normal adults, unless nitrite is eaten directly as salt, the dose of poisoning will not be reached, so in daily life, leftovers are not enough to threaten the health of ordinary people. Studies have found that if not turned around, the newly prepared meals in the refrigerator, the next day its nitrite content increased from only 3 mg/kg to 7 mg/kg, far lower than the popular ready-to-eat ham intestines in Central Asia nitrate content (qualified ham intestine Central Asian nitrate per capita residual amount of 30 mg/kg).
in life, as long as the leftovers are handled well, taking into account the nutritional mix, in fact, eating leftovers can also eat healthy. The Life Times mentions that the principle of preserving leftovers is to wrap them in clean containers such as fresh boxes and bags after they are cool, and then put them in the fridge immediately, not at room temperature for too long. The emphasis here is to be cool, mainly because hot food enters the low temperature environment, will cause water vapor condensation, promote mold growth, leading to other food mold in the refrigerator. For leftovers leftovers placed at room temperature, it is best to finish them within five or six hours. And seafood, meat, soy products because of its high protein content, water content, suitable for microbial growth, so it is best to eat the same day, or cool in time to put in the refrigerator. (Fang Enron) This article
scientifically controlled by Yu Guangfeng, Director of the Business Department of the Science and Technology Information Exchange Center.
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