久存蔬菜许多人为了节约时间,一次从菜市场买回许多蔬菜后,放在冰箱中慢慢食用,这样做是很不好的。因为蔬菜,尤其是叶菜中含有硝酸盐,在储藏一段时间后,由于酶和细菌的作用,硝酸盐被还原成亚硝酸盐,而亚硝酸盐在人体内与蛋白质类物质结合,可生成致癌性的亚硝酸胺类物质。长期储 Long-lived vegetables Many people in order to save time, once bought a lot of vegetables from the vegetable market, put it in the refrigerator to eat slowly, this is very bad. Because vegetables, especially leafy vegetables, contain nitrates, after a period of storage, nitrates are reduced to nitrites due to enzymes and bacteria, and nitrites combine with proteins in the body to produce cancer Sexual nitrite amines. Long-term storage