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土豆去皮怎样才能不变色
更新时间: 2020-09-18 00:00:00  

具体方法有以下两种:

1、浸水法:把削皮后的土豆等易变色的蔬果浸在冷水里,使其与空气中的氧隔绝;

2、加酸法:酚氧化酶在PH值为6-7时活性最强,PH值小于3时,活性会降低。因此,在食品中加酸醋降低PH值,可以抑制酶的活性,减慢变色速度。

关键词: 土豆 怎样 才能 变色

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