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怎样识别霉变大米 | 2011-10-16 8:57:00

大米霉变后,会产生黄曲霉毒素,而食用含有黄曲霉毒素的大米,则会引起黄曲霉毒素中毒,症状表现为发烧、腹痛、呕吐、食欲减退等,是诱发肝癌的主要危险因素之一,肝部会有病变,23个月后肝脏肿大、肝区疼痛、黄疸、脾大、腹水、下肢浮肿及肝功能异常,还可能伴有心脏扩大、肺水肿,甚至痉挛、昏迷等,多数患者在晚期会有直肠、肝、胃大出血等现象。

医学专家指出,食用致癌大米虽然其一次性的毒性没有这么大,但长期食用将无疑会致癌。因为黄曲霉毒素是目前发现的最强的生物致癌物,试验表明,其致癌所需时间最短仅为24周。

另外,被黄曲霉毒素污染的还有多种粮油作物及其制品,如花生、花生油、玉米、大豆等。大量资料证明,在高温的东南和中南地区,此类污染尤为严重。

怎样识别含有黄曲霉毒素的致癌大米呢?教你“四招”识别方法:

一看:看大米色泽。如发现大米发暗,色泽不鲜亮,没有正常大米的光泽,一定要提高警惕,这样的米即使不含黄曲霉毒素,也是陈年蚀米最好别买。

二闻:闻大米气味。正常大米有稻香味,而含有黄曲霉毒素的致癌大米则没有,常伴有霉味和异味。

三摸:摸大米手感。霉变后的大米,厂(商)家为了掩盖其丑陋本质,会进行抛光处理,但抛光也还是会露出马脚,手感和正常米会有明显差别。有的不法商人还会进一步处理,再加一层矿物油,以增加亮光。但加了矿物油后,大米又难免会油腻,所以致癌大米有些会有油腻感。

四辩:辩大米包装。这些经过改头换面、易容改装流入市场的低档变质大米,通常外包装上都不会写明生产厂家、生产日期。因此,市民在选购时一定要注意分辨,最好不要贪图便宜去选购这些无名产品。

米饭是中国人的主食,但一些不法商贩利欲薰心,常常会将霉变的大米以次充好。专家指出,长期食用会大大增加致癌风险,市民购买时应该认真识别。

Re:怎样识别霉变大米 | 2011-10-16 8:58:46
章仁根霉变大米易致癌,购买要注意识别。
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原创 | 2016-9-6 17:06:09
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原创 | 2016-9-28 16:41:24
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原创 | 2016-9-30 11:18:04
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Re:在漫画中识别身边的违章 | 2016-10-8 18:56:29
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Re:在漫画中识别身边的违章 | 2016-10-13 17:44:58
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Re:在漫画中识别身边的违章 | 2016-10-15 15:43:50
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Re:在漫画中识别身边的违章 | 2016-10-16 2:40:46
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Re:在漫画中识别身边的违章 | 2016-10-17 15:27:10
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Re:在漫画中识别身边的违章 | 2016-10-20 10:44:25
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Re:在漫画中识别身边的违章 | 2016-10-20 22:24:13
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Re:在漫画中识别身边的违章 | 2016-10-21 5:05:45
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Re:在漫画中识别身边的违章 | 2016-10-21 20:06:51
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Re:在漫画中识别身边的违章 | 2016-10-23 3:03:44
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Re:在漫画中识别身边的违章 | 2017-2-20 15:25:39
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Re:在漫画中识别身边的违章 | 2017-2-20 15:36:51
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Re:在漫画中识别身边的违章 | 2017-2-20 15:46:33
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