2 sentences

1. 土豆含有大量的淀粉。

   tǔ​dòu hán​yǒu dà​liàng de diàn​fěn.

   Potatoes contain a large amount of starch.

   Source: Dong Chinese Dictionary

2. 这种粉丝是用绿豆淀粉做的。

   zhè zhǒng fěn​sī shì yòng lǜ​dòu diàn​fěn zuò de.

   These glass noodles are made from mung bean starch.

   Source: Dong Chinese Dictionary