The majority of bio‑based plastics are currently manufactured using starch as a feedstock (c.a. 80% of current bio‑based plastics).
The current major sources of this starch are maize, potatoes and cassava.
Other potential sources include arrowroot, barley,
some varieties of liana, millet, oats, rice, sago, sorghum, sweet potato, taro and wheat (BPF 2018).