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鸡蛋为什么洗了放不久
更新时间: 2020-06-28 00:00:00  

鸡蛋清洗之后容易变质的原因:

母鸡下蛋时,会在鸡蛋表面覆盖一层薄膜,使蛋壳的小孔封闭,不受细菌的侵害。但是这层薄膜易溶于水,当把鸡蛋放在水中清洗时,薄膜被破坏掉。于是,空气中的微生物便很容易通过蛋壳表面的小孔进入鸡蛋里,使蛋白质腐败变质。

关键词: 鸡蛋 为什么 不久

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