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怎样检验土豆中含淀粉

更新时间: 2020-10-05 00:00:00     

方法:

1、切一片土豆;

2、放在酒精灯上烤干水分;

3、用刀刮下切片表面的粉末;

4、将白色粉末于一些水混合;

5、滴入碘液;

6、水变成紫或蓝色就是有淀粉。

关键词: 怎样 检验 土豆 淀粉

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