Most bags are mostly manufactured from plastic made from corn-based materials, like
Polylactic acid (PLA). Biodegradable plastic bags require more plastic per bag, because the material is not as strong.
[citation needed] Many bags are also made from paper, organic materials, or polycaprolactone.
[2][3][8]
"The public looks at biodegradable as something magical," even though the term is mostly meaningless, according to Ramani Narayan, a chemical engineer at Michigan State University in East Lansing, and science consultant to the Biodegradable Plastics Institute. "This is the most used and abused and misused word in our dictionary right now. Simply calling something biodegradable and not defining in what environment it is going to be biodegradable and in what time period it is going to degrade is very misleading and deceptive." In the
Great Pacific Garbage Patch, biodegradable plastics break up into small pieces that can more easily enter the food chain by being consumed."