I-Polylactic acid (PLA) iyinto entsha ebolayo, eyenziwe ngezinto zokusetshenziswa kwesitashi eziphakanyiswa yimithombo yezitshalo ezivuselelekayo (njengommbila). I-glucose itholakala ezintweni zokusetshenziswa kwesitashi ngokusebenzisa i-saccharification, bese kuba ne-lactic acid emsulwa kakhulu ekhiqizwa ngokubiliswa kwe-glucose namagciwane athile, bese kuba ne-polylactic acid enesisindo esithile sama-molecule ekhiqizwa ngendlela yokwenziwa kwamakhemikhali.
Inokubola okuhle. Ngemva kokusetshenziswa, ingabola ngokuphelele yizinto ezincane zemvelo, futhi ekugcineni ikhiqize i-carbon dioxide namanzi, okungangcolisi imvelo, okuwusizo kakhulu ekuvikelweni kwemvelo. Iqashelwa njengento enobungani nemvelo.
Indlela yokwelapha amapulasitiki avamile isawukushisa nokushiswa kwesidumbu, okuholela enanini elikhulu lamagesi okushisa akhishwa emoyeni, kuyilapho amapulasitiki e-polylactic acid engcwatshwe enhlabathini ukuze abhujiswe, kanti ikhabhoni ekhiqizwayo ingena ngqo ezintweni eziphilayo enhlabathini noma imuncwa yizitshalo, ezingeke zikhishwe emoyeni futhi ezingeke zibangele umphumela wokushisa.