天气预报 > 其他 > 莲藕如何保存不变色
莲藕如何保存不变色
更新时间: 2020-11-03 00:00:00  

可以用盐水浸泡。因为莲藕中含多酚氧化酶,长期暴露在空气中,可氧化莲藕为黑色醌类物质。盐水能减少水中氧离子的含量,避免空气与莲藕的直接接触,防止切开后变黑。还可以用热水浸泡两到三分钟,这样可完全去除莲藕中的多酚氧化酶,防止莲藕变黑。

关键词: 莲藕 如何 保存 变色

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