The foliage from the potato crop has 17% protein but is currently trashed as it contains glycoalkaloids that are toxic even for cattle. Israel’s Rumafeed utilizes innovative molecular technologies to eliminate the toxic chemicals. Rumafeed was runner-up in Hebrew U’s Asper Prize.
https://nocamels.com/2023/06/feeding-the-worlds-livestock-one-potato-at-a-time/
https://en.huji.ac.il/news/avertto-wins-hebrew-university%E2%80%99s-asper-prize-startup-award-2023