Nyob rau hauv ib txwm parlance, lo lusbiodegradableyog txawv ntawm lub ntsiab lus ntawmcompostable. Thaum biodegradable tsuas txhais tau hais tias ib yam khoom muaj peev xwm decomposed los ntawm cov kab mob los yog lwm yam kab mob nyob, "compostable" nyob rau hauv lubkev lag luam yastxhais tau tias muaj peev xwm decompose hauvaerobicib puag ncig uas tau tswj xyuas nyob rau hauv qhov tshwj xeeb tswj qhov kub thiab txias. Compostable txhais tau hais tias muaj peev xwm ua kom muaj kev puas tsuaj hauv cov khoom siv hauv ib qho chaw sib xyaw xws li cov khoom siv tsis pom qhov txawv thiab tawg mus rau carbon dioxide, dej, inorganic tebchaw thiab biomass ntawm tus nqi raws li cov ntaub ntawv compostable paub.
Feem ntau lub hnab uas tsim los ntawm cov yas yog tsim los ntawm cov khoom siv pob kws, xws lipolylactic acidsib tov. Biodegradable hnab yas yog tam sim no muaj zog thiab txhim khu kev qha raws li cov tsoos (feem ntau polyethylene) - hnab. Ntau lub hnab kuj ua los ntawm cov ntawv, cov khoom siv organic, lossispolycaprolactone.
"Cov pej xeem saib biodegradable raws li tej yam yees siv," txawm hais tias lub sij hawm siv dav, raws li Ramani Narayan, ib tug kws kho mob ntawm Michigan State University nyob rau hauv East Lansing, thiab science kws pab tswv yim rau lub Biodegradable Plastics Institute. "Qhov no yog cov lus siv ntau tshaj thiab raug tsim txom thiab siv tsis raug hauv peb phau ntawv txhais lus tam sim no. Nyob rau hauvGreat Pacific khib nyiab thaj, biodegradable plastics tawg mus rau hauv cov khoom me me uas tuaj yeem nkag mus tau yooj yim duasaw khoom nojlos ntawm kev siv. "