they linked to the study... https://pubs.rsc.org/en/content/articlelanding/2025/fb/d5fb0...

> These films exhibit a transparency of 83.70–84.30% mm−1 and a tensile strength of 15.42–18.20 MPa. They biodegrade within 17 days in soil at 24% moisture content. These films demonstrate outstanding potential for food packaging applications. Our research approach of repurposing agricultural byproducts to create high-value products helps reduce plastic waste, conserve the environment, and provide economic benefits to farmers.

on the lower end of plastics but might be fine for this application: https://www.researchgate.net/figure/3-Tensile-strength-and-i...

seems comparable to LDPE which i think the common bags are made from.