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如何鉴别红薯淀粉

更新时间: 2020-09-16 00:00:00     

可以通过以下两个方面鉴别其真伪:

1、辨声:用拇指和食指捏一点淀粉粉末,往返搓捻。纯正的淀粉光滑细腻,发出吱吱声响;掺假的淀粉则粗糙滞手。

2、水试:取少量淀粉,放入一杯清水中,搅拌后静置片刻,纯正淀粉会很快沉淀,上面的水依然清澈;而掺假的淀粉上面的水是混浊的。

关键词: 如何 鉴别 红薯 淀粉

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