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土豆为什么会发绿
更新时间: 2020-09-23 00:00:00  

土豆会发绿的原因:土豆中含有少量有毒物质“龙葵素”。土豆中的部分质体中的材料在受到阳光照射后会转变为叶绿素,当土豆发芽,皮肉变绿或变紫时,这种毒素会剧增,尤以芽和周围皮肉中含量为多。龙葵素对人体有溶血作用,还能麻痹人神经系统中的运动中枢和呼吸中枢,食后十分钟至数小时内,即可使人中毒。症状有口干、舌麻、恶心、呕吐、腹痛、腹泻,重者可有发烧、气短、头晕、耳鸣、畏光、抽搐等,甚至因呼吸中枢麻痹而死亡。

关键词: 土豆 为什么

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