There are quite a few materials in use, like reeds, grasses (such as bamboo), cotton, and polylactic acids (PLA), which are derived from agricultural crops like corn.
In 2009, the company produced a SunChips bag that contained 33 percent PLA, making it the first time the material was used in snack bag manufacturing.
By using corn as its base, PLA is manufactured with annually renewable resources rather than petroleum, which can take over a million years to form.
Frito-Lay's new SunChips bags are made from three layers of an innovative polymer called polylactic acid or PLA.
The primary resource needed to make PLA is lactic acid, which is produced when dextrose is fermented.
Examples are: Rao (We) dekchai (boy) sam (three) kon (persons) cha (will) pai (go) chap (catch) pla (fish) samrap (for) hai (give) paw (father) kin (eat).
This page gives an overview of all articles in the 1911 Brittanica which are alphabetized under Pio to Pla.
-Fp n by x-a, according to algebraical division, the remainder is R= po an +pla?