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螃蟹煮熟后为什么会变红
更新时间: 2020-11-05 00:00:00  

螃蟹煮熟后会变红主要是因为在螃蟹的这些色素细胞中,含虾红素的细胞较多。螃蟹坚硬的外壳下有一道真皮层,这里散布着很多的色素细胞,正是色素细胞决定了螃蟹外表的颜色。当虾红素与不同种类的蛋白质结合在一起时,呈现蓝紫或青绿色,称为虾青素。一旦来到高温环境下,蛋白质发生变性与虾红素分离从而呈现红色。

关键词: 螃蟹 为什么

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