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莲藕炒了变黑能吃吗
更新时间: 2020-11-11 00:00:00  

莲藕无论是氧化变黑还是铁锅炒后变黑都是能吃的。因为多酚类物质经过氧化变色或者多酚类和铁离子的络合物都没有毒,而且人体还能消化它们,可放心食用。莲藕之所以会在烹调过程中变黑,是因为它含有多酚类的化学物质,这类物质的共同特点就是能与铁离子结合,形成蓝色或紫色的有色络合物,这些络合物就是蓝黑墨水的主要成分。

关键词: 莲藕

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