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亚硝酸盐是食品添加剂中毒性较强的物质,摄入后可与Hb结合形成高铁Hb,而使Hb失去携氧功能。此外蛋白质的代谢产物中的仲胺在人的胃肠中与亚硝酸盐反应生成亚硝胺,对人有强烈的致癌性。有研究表明,大葱、蒜、洋葱中有机硫化物能有效地阻断亚硝酸盐与胺类化合物形成亚硝胺类化合
Nitrite is a highly toxic food additive substances, after ingestion can be combined with Hb to form high-speed rail Hb, leaving Hb lose oxygen carrying function. In addition protein secondary metabolites metabolites in the human gastrointestinal and nitrite reaction nitrosamines, have a strong carcinogenic to humans. Studies have shown that organic sulfides in green onions, garlic and onion can effectively block nitrosamines and amine compounds from forming nitrosamines