The green color that forms on the skin is actually chlorophyll which isn't toxic but indicates the presence of the toxin solanine which is a defense mechanism against pests.

土豆皮上的绿色实际上是叶绿素，它是无的，但这有素茄碱的存在，这是一种防御害虫的机制。

All potatoes contain two natural toxins called solanine and chaconine.

所有土豆都含有两种天然素， 称为龙葵碱和查茄碱。