Cov neeg ua haujlwm ntawm American Chemical Society tau tsim eco-friendly ntim rau kev khaws cia ntawm ntau yam khoom. Nws yog ua los ntawm cov yeeb yaj kiab uas muaj casein, uas yog ib feem ntawm cov mis nyuj. Cov protein no tau txais los ntawm qhov tshwm sim ntawm curdling ntawm haus.
Khoom nta
Visually, cov khoom siv tsis txawv ntawm cov polyethylene thoob plaws. Lub ntsiab feature ntawm lub ntim tshiab yog tias nws tuaj yeem noj tau. Cov khoom tsis tas yuav tsum tau muab tshem tawm ntawm lub ntim rau kev npaj, raws li cov khoom dissolves tag nrho ntawm qhov kub thiab txias.
Cov neeg tsim khoom thov tias cov ntim khoom tsis muaj kev phom sij rau tib neeg lub cev thiab ib puag ncig. Niaj hnub no, feem ntau ntawm cov ntim khoom noj yog tsim los ntawm cov khoom siv roj av. Nyob rau tib lub sijhawm, lub sijhawm decomposition ntawm cov ntaub ntawv no yog ntev heev. Piv txwv li, polyethylene tuaj yeem decompose hauv 100-200 xyoo!
Cov yeeb yaj kiab uas muaj cov protein tsis tso cai rau cov pa oxygen molecules mus txog cov khoom noj, yog li lub ntim yuav tiv thaiv cov khoom los ntawm kev lwj. Ua tsaug rau cov yeeb yaj kiab no, raws li cov neeg tsim khoom ntawm cov khoom tshiab, nws yuav ua tau kom txo qis cov khoom pov tseg hauv tsev. Tsis tas li ntawd, cov khoom siv tshwj xeeb tuaj yeem ua rau zaub mov saj zoo dua. Piv txwv li, noj tshais qab zib cereal yuav tau txais qhov tsw zoo los ntawm zaj duab xis. Lwm qhov zoo ntawm cov pob khoom no yog qhov ceev ntawm kev ua noj. Piv txwv li, hmoov kua zaub tuaj yeem muab pov rau hauv dej npau npau nrog rau lub hnab.
Txoj kev loj hlob tau pom thawj zaug ntawm 252nd ACS exhibition. Nws cia siab tias cov khoom siv yuav pom daim ntawv thov hauv ntau qhov kev lag luam nyob rau yav tom ntej. Rau kev siv, nws yog ib qho tsim nyog uas cov cuab yeej siv rau kev tsim cov pob khoom zoo li no muaj txiaj ntsig zoo. Txawm li cas los xij, pib nrog, cov khoom siv yuav tsum dhau qhov kev tshuaj xyuas nruj heev los ntawm United States Food and Drug Administration. Cov neeg soj ntsuam yuav tsum paub meej tias kev nyab xeeb ntawm kev siv cov khoom siv rau cov khoom noj.
Lwm txoj kev muab
Cov kws tshawb fawb sau tseg tias qhov no tsis yog thawj lub tswv yim los tsim cov ntim khoom noj. Txawm li cas los xij, thev naus laus zis rau kev tsim cov ntaub ntawv zoo li no tam sim no tsis zoo tag nrho. Yog li, muaj kev sim tsim cov ntim khoom noj los ntawm cov hmoov txhuv nplej siab. Txawm li cas los xij, cov khoom zoo li no yog ntxeem tau, uas ua rau nkag mus rau cov pa oxygen mus rau hauv qhov microscopic qhov. Yog li ntawd, zaub mov tsuas yog khaws cia rau lub sijhawm luv luv xwb. Mis protein tsis muaj pores, uas tso cai rau lub sijhawm ntev.