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白菜炒后为什么颜色会变黑呀
更新时间: 2020-10-02 00:00:00  

白菜炒后变黑的原因:

1、蔬菜含有丰富的维生素,其中以维生素C和维生素A最为重要;

2、维生素C在烹煮时会大量流失,蔬菜颜色约深绿或深黄,含有的维生素A和维生素C就越多;

3、所以白菜会变黑是应为炒太久,维生素流失。

防止白菜炒后变黑的方法:

1、猛火;

2、油放多点;

3、最后放盐。

关键词: 白菜 为什么 颜色

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