天气预报 > 其他 > 香蕉里面黑了还能吃吗
香蕉里面黑了还能吃吗
更新时间: 2020-11-12 00:00:00  

香蕉发黑是香蕉变质的,腐烂的,不可以食用的。建议吃香蕉不要等香蕉变黑在食用的,会造成胃肠道疾患的,同时每天吃1-2个就可以的。那是香蕉发生的"褐变"反应,是香蕉里面的多酚氧化酶被空气中的氧气所氧化产生的。变成黑色的地方是多酚氧化酶与香蕉内物质形成的类醌类物质,是苯的衍生物,对人体有害.

关键词: 香蕉 里面

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