许多人为了节时省事,一次性从菜市场上买回很多蔬菜,放在室内或冰箱内几天才食完。其实这是很不科学的,也是很危险的。这是因为蔬菜中含有的硝酸盐虽本身无毒,但是储藏一段时间后,由于酶和细菌的作用,硝酸盐被还原成亚硝酸盐。亚硝酸盐在人 Many people save time and save a lot of vegetables from the market at one time and put them in a few days indoors or in the refrigerator. In fact, this is very unscientific, but also very dangerous. This is because the vegetables contained in the nitrate itself, although non-toxic, but stored for some time, due to the role of enzymes and bacteria, nitrate is reduced to nitrite. Nitrite in humans