Puas yog PLA Compostable lossis Biodegradable?

Polylactic acid (PLA) yog cov khoom siv uas tau nyob ib puag ncig ntau xyoo lawm. Txog thaum tsis ntev los no, tsis muaj cov neeg tsim khoom loj ntawm PLA muaj nyob kom txog thaum lawv tau txais nyiaj los ntawm cov tuam txhab mega kom nkag mus rau hauv kev lag luam raws li kev hloov cov yas hluavtaws. BioSphere Plastic feem ntau tau txais kev nug txog seb PLA puas tuaj yeem ua rau biodegradable. Txawm hais tias cov lus teb tsis ncaj ncees lawm, peb tau txiav txim siab los tsim cov ntawv tshaj tawm los piav qhia tias PLA ua li cas tiag tiag thiab muab kev nyeem ntxiv rau cov neeg nyiam.

PLA tsis yog biodegradable; nws yog degradable.

Enzymes uas hydrolyze PLA tsis tshua pom muaj nyob hauv ib puag ncig, tshwj tsis yog muaj qee zaus.

Proteinase K catalyzes hydrolytic degradation ntawm PLA.

Williams hauv 1981 thiab Tsuji thiab Miyauchi hauv 2001 nug tib lo lus nug: "PLA puas yog biodegradable?" Lawv tau sau cov ntawv dawb ntawm qhov kev kawm thiab muaj nyob hauv phau ntawvBiomaterials Science: Kev Taw Qhia rau Cov Khoom Siv Hauv Tshuaj. Hauv phau ntawv thiab ntawm European Society for Biomaterials lub rooj sib tham, nws tau tham txog tias PLA degradation yog tswj los ntawm hydrolysis thiab qhov hydrolysis no yog ywj siab ntawm txhua tus neeg ua haujlwm lom neeg.

Yog li thaum ntau tus neeg ntseeg tias PLA yog biodegradable, nws tsis yooj yim. PLA yog degradable thiab yuav tsum raug xam tias yog li ntawd. HauvBiomaterials Kev Tshawb Fawbphau ntawv, cov kws sau ntawv tau hais tias qhov tshwm sim ntawm Proteinase K hydrolyzing PLA yog tsawg heev uas nws tsis tsim nyog tham ntxiv.

Peb cia siab tias qhov no qhia meej cov lus nug ntawm seb PLA puas yog biodegradable. Peb yuav ua haujlwm txuas ntxiv mus rau cov kev daws teeb meem zoo tshaj plaws rau koj cov yas ntsuab thiab biodegradable xav tau.