随着生活节奏的加快,许多上班族往往趁周末进行大采购,将一星期的蔬菜购买回后,存放到冰箱里以图方便。殊不知,吃这种存放了几天的蔬菜其实并不利于健康。蔬菜含有硝酸盐,硝酸盐本身无毒,但在储藏一段时间之后,由于酶和细菌的作用,硝酸盐被还原成亚硝酸盐。亚硝酸盐是一种有毒物质,它在人体内 As the pace of life accelerates, many office workers tend to make big purchases on weekends. After buying the vegetables for one week, they are stored in the refrigerator for convenience. As everyone knows, to eat this store a few days of vegetables is actually not conducive to health. Vegetables contain nitrates, which themselves are non-toxic, but they are reduced to nitrites after a period of storage due to enzymes and bacteria. Nitrite is a poisonous substance that is in the human body