Ua tsaug rau koj tuaj xyuas Nature.com.Qhov browser version koj siv tau txwv CSS kev txhawb nqa.Rau qhov kev paub zoo tshaj plaws, peb xav kom koj siv qhov browser tshiab (lossis lov tes taw Compatibility Hom hauv Internet Explorer).Nyob rau lub sijhawm no, txhawm rau ua kom muaj kev txhawb nqa txuas ntxiv, peb yuav ua rau lub xaib tsis muaj qauv thiab JavaScript.
Hauv txoj kev tshawb no, biodegradable films tau tsim los ntawm chitosan (CH) enriched nrog thyme tseem ceeb roj (TEO) nrog ntau yam additives xws li zinc oxide (ZnO), polyethylene glycol (PEG), nanoclay (NC) thiab calcium.Cov tshuaj chloride (CaCl2) thiab ua kom pom qhov zoo tom qab sau qoob loo thaum lub tub yees.Cov txiaj ntsig tau pom tias kev sib koom ua ke ntawm ZnO / PEG / NC / CaCl2 rau hauv CH raws li cov yeeb yaj kiab ua rau txo cov dej vapor kis tus nqi, nce tensile zog, thiab yog dej soluble thiab biodegradable nyob rau hauv cov xwm.Tsis tas li ntawd, CH-TEO-raws li cov yeeb yaj kiab ua ke nrog ZnO / PEG / NC / CaCl2 tau txais txiaj ntsig zoo hauv kev txo qis lub cev poob phaus, tswj tag nrho cov soluble solids, titratable acidity, thiab tswj cov ntsiab lus chlorophyll, thiab pom qis a *, inhibiting microbial kev loj hlob., tsos thiab organoleptic zoo ntawm cabbage yog khaws cia rau 24 hnub piv rau LDPE thiab lwm yam biodegradable films.Peb cov txiaj ntsig tau pom tias CH-raws li cov yeeb yaj kiab uas muaj TEO thiab cov khoom siv ntxiv xws li ZnO / CaCl2 / NC / PEG yog qhov muaj txiaj ntsig zoo, ib puag ncig, thiab muaj txiaj ntsig zoo rau kev khaws cia lub txee lub neej ntawm cov zaub qhwv thaum lub tub yees.
Synthetic polymeric ntim cov ntaub ntawv muab los ntawm cov roj av tau ntev tau siv nyob rau hauv kev lag luam khoom noj khoom haus los xyuas kom meej qhov zoo thiab kev nyab xeeb ntawm ntau yam khoom noj khoom haus.Qhov zoo ntawm cov khoom siv tsoos zoo li no tau tshwm sim vim qhov yooj yim ntawm kev tsim khoom, tus nqi qis thiab cov khoom thaiv zoo heev.Txawm li cas los xij, kev siv loj thiab pov tseg ntawm cov khoom tsis-degradable no yuav ua rau muaj kev cuam tshuam loj heev ntawm ib puag ncig muaj kuab paug.Nyob rau hauv cov ntaub ntawv no, kev loj hlob ntawm ib puag ncig tiv thaiv tej yam ntuj tso ntim cov ntaub ntawv tau sai heev nyob rau hauv xyoo tas los.Cov yeeb yaj kiab tshiab no tsis muaj tshuaj lom, biodegradable, ruaj khov thiab biocompatible1.Ntxiv nrog rau qhov tsis muaj tshuaj lom thiab biocompatible, cov yeeb yaj kiab no raws li biopolymers ntuj tuaj yeem nqa cov tshuaj antioxidants thiab yog li tsis ua rau cov khoom noj khoom haus tsis zoo, suav nrog cov tshuaj ntxiv xws li phthalates.Yog li ntawd, cov substrates no tuaj yeem siv los ua lwm txoj hauv kev rau cov khoom siv roj av raws li cov khoom siv zoo sib xws hauv kev ntim khoom noj3.Niaj hnub no, biopolymers muab tau los ntawm cov proteins, lipids thiab polysaccharides tau ua tiav tiav, uas yog cov khoom ntim tshiab rau ib puag ncig.Chitosan (CH) yog siv dav hauv cov ntim khoom noj, suav nrog polysaccharides xws li cellulose thiab hmoov txhuv nplej siab, vim nws yooj yim zaj duab xis tsim muaj peev xwm, biodegradability, zoo dua oxygen thiab dej vapor impermeability, thiab zoo mechanical zog chav kawm ntawm tej yam ntuj tso macromolecules.,5.Txawm li cas los xij, qhov tsis tshua muaj tshuaj tiv thaiv kab mob thiab tshuaj tua kab mob ntawm CH films, uas yog cov txheej txheem tseem ceeb rau cov khoom ntim ntim cov yeeb yaj kiab, txwv tsis pub lawv muaj peev xwm 6, yog li cov molecules ntxiv tau muab tso rau hauv CH films los tsim cov hom tshiab uas tsim nyog siv.
Cov roj tseem ceeb muab tau los ntawm cov nroj tsuag tuaj yeem muab tso rau hauv cov yeeb yaj kiab biopolymer thiab tuaj yeem faib cov tshuaj tua kab mob los yog cov kab mob tua kab mob rau cov tshuab ntim khoom, uas yog qhov tseem ceeb rau kev ncua lub txee lub neej ntawm cov khoom noj.Thyme tseem ceeb roj yog nyob deb ntawm feem ntau kawm thiab siv cov roj tseem ceeb vim nws cov tshuaj tua kab mob, tshuaj tiv thaiv kab mob thiab tshuaj tua kab mob.Raws li cov ntsiab lus ntawm cov roj tseem ceeb, ntau yam tshuaj thyme tau txheeb xyuas, suav nrog thymol (23-60%), p-cymol (8-44%), gamma-terpinene (18-50%), linalool (3-4%). ).%) thiab carvacrol (2-8%) 9, txawm li cas los xij, thymol muaj cov tshuaj tua kab mob zoo tshaj plaws vim yog cov ntsiab lus ntawm phenols hauv nws 10.Hmoov tsis zoo, suav nrog cov roj yam tseem ceeb lossis lawv cov khoom xyaw nquag hauv biopolymer matrices txo cov neeg kho tshuab lub zog ntawm biocomposite films11,12.Qhov no txhais tau hais tias cov ntaub ntawv ntim khoom thiab cov yeeb yaj kiab yas uas muaj cov roj tseem ceeb yuav tsum raug kho kom tawv tawv ntxiv txhawm rau txhim kho cov khoom siv ntawm lawv cov ntim khoom noj.
Post lub sij hawm: Oct-25-2022