热点: SQL Error: select id,classid,ttid,onclick,plnum,totaldown,newspath,filename,userid,username,firsttitle,isgood,ispic,istop,isqf,ismember,isurl,truetime,lastdotime,havehtml,groupid,userfen,titlefont,titleurl,stb,fstb,restb,keyboard,title,ftitle,bigpic,newstime,titlepic,smalltext,diggtop from ***_ecms_news order by rand() limit 4

这种强致癌物,却大量存在我们身边,吃起来要小心,吃错要命

时间:2018-07-29 03:40:32 来源:51养生网作者:亚硝酸盐点击:

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原标题:这种强致癌物,却大量存在我们身边,起来要小心,错要命

亚硝酸和胺类无论在人体内或人体外均可生成亚硝胺。使用维生素C可降低食品中的亚硝胺的致癌作用。另外,亚硝胺可被紫外线光照分解,遇也易被分解。所以,在烹调时尤其是烹调腌制食品时,加入一定量的不仅可增加食物的风味,还可分解亚硝胺。下面跟51养生网小编看看。

亚硝胺是食物中的亚硝酸和人体内的仲胺(质代谢的一种产物)相结合形成的。它是一种强致癌物,对肝、、胃、食管等危害最大,既可因长期小剂量接触而致癌,也可能因一次大剂量接触而突发癌变。由于硝酸用作肥料,硝酸自然界中广泛分布,如分布在饮用植物中,尤其是菠中含量较高。

硝酸易被微生物还原为亚硝酸,这样就有少量亚硝酸食物进入人体。人均亚硝酸摄入量因不同地区、不同人群体污染情况不同而波动较大,每日平均摄入量约为1.5毫克。由于摄入食物还含仲胺(如脯氨酸、羟脯氨酸、二甲基胺等)

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