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Mu phunziroli, mafilimu omwe amatha kuwonongeka ndi chilengedwe adapangidwa pogwiritsa ntchito chitosan (CH) chopangidwa ndi thyme zofunika mafuta (TEO) ndi zowonjezera zosiyanasiyana kuphatikizapo zinc oxide (ZnO), polyethylene glycol (PEG), nanoclay (NC) ndi calcium.Chloride (CaCl2) ndi kuzindikiritsa mtundu wa kale wokolola pambuyo pokolola mufiriji.Zotsatira zikuwonetsa kuti kuphatikizidwa kwa ZnO/PEG/NC/CaCl2 m'mafilimu opangidwa ndi CH kumachepetsa kwambiri kufalikira kwa nthunzi wamadzi, kumawonjezera mphamvu zamanjenje, komanso kumasungunuka m'madzi komanso kusungunuka mwachilengedwe.Kuphatikiza apo, mafilimu opangidwa ndi CH-TEO ophatikizidwa ndi ZnO/PEG/NC/CaCl2 anali othandiza kwambiri pochepetsa kuchepa kwa thupi, kusunga zolimba zosungunuka, tittable acidity, ndi kusunga zinthu za chlorophyll, ndikuwonetsa kutsika kwa *, kuletsa kukula kwa tizilombo tating'onoting'ono., maonekedwe ndi maonekedwe a kabichi amasungidwa kwa masiku 24 poyerekeza ndi LDPE ndi mafilimu ena omwe amatha kuwonongeka.Zotsatira zathu zikuwonetsa kuti mafilimu opangidwa ndi CH opangidwa ndi TEO ndi zowonjezera monga ZnO/CaCl2/NC/PEG ndi njira yokhazikika, yosamalira zachilengedwe, komanso yothandiza posungira alumali moyo wa kabichi ikasungidwa mufiriji.
Zipangizo zopangira ma polymeric zopangidwa kuchokera ku petroleum zakhala zikugwiritsidwa ntchito kwanthawi yayitali m'makampani azakudya kuti zitsimikizire mtundu ndi chitetezo chazakudya zosiyanasiyana.Ubwino wa zida zachikhalidwe zotere zimawonekera chifukwa chosavuta kupanga, zotsika mtengo komanso zopinga zabwino kwambiri.Komabe, kugwiritsiridwa ntchito kwakukulu ndi kutayidwa kwa zinthu zosawonongekazi kudzakulitsa vuto lalikulu la kuipitsa chilengedwe.Pankhaniyi, chitukuko cha chitetezo chilengedwe zipangizo ma CD ma CD wakhala mofulumira m'zaka zaposachedwapa.Makanema atsopanowa ndi opanda poizoni, osawonongeka, okhazikika komanso ogwirizana1.Kuphatikiza pakukhala opanda poizoni komanso ogwirizana ndi biocompatible, makanemawa otengera ma biopolymers achilengedwe amatha kunyamula ma antioxidants ndipo chifukwa chake samayambitsa kuipitsidwa kulikonse kwazakudya, kuphatikiza kutulutsa zowonjezera monga phthalates.Chifukwa chake, magawowa atha kugwiritsidwa ntchito ngati njira ina yopangira mapulasitiki amtundu wamafuta amafuta chifukwa ali ndi magwiridwe antchito ofanana pakupakira chakudya3.Masiku ano, ma biopolymers opangidwa kuchokera ku mapuloteni, lipids ndi ma polysaccharides apangidwa bwino, omwe ndi mndandanda wazinthu zatsopano zosungirako zachilengedwe.Chitosan (CH) chimagwiritsidwa ntchito mu ma CD chakudya, kuphatikizapo ma polysaccharides monga mapadi ndi wowuma, chifukwa zosavuta filimu kupanga luso, biodegradability, mpweya wabwino ndi nthunzi impermeability madzi, ndi wabwino makina mphamvu gulu la macromolecules wamba zachilengedwe.,5.Komabe, mphamvu yochepa ya antioxidant ndi antibacterial ya mafilimu a CH, omwe ndi ofunika kwambiri pa mafilimu opangira chakudya, amalepheretsa mphamvu zawo6, kotero kuti mamolekyu owonjezera aphatikizidwa mu mafilimu a CH kuti apange mitundu yatsopano yogwiritsira ntchito moyenera.
Mafuta ofunikira omwe amachokera ku zomera amatha kuphatikizidwa m'mafilimu a biopolymer ndipo amatha kupereka antioxidant kapena antibacterial properties kumakina olongedza, omwe ndi othandiza kukulitsa moyo wa alumali wa zakudya.Mafuta ofunikira a Thyme ndi omwe amawerengedwa kwambiri komanso ogwiritsidwa ntchito kwambiri chifukwa cha antibacterial, anti-inflammatory and antifungal properties.Malinga ndi kapangidwe ka mafuta ofunikira, ma chemotypes osiyanasiyana a thyme adadziwika, kuphatikiza thymol (23-60%), p-cymol (8-44%), gamma-terpinene (18-50%), linalool (3-4%). ).%) ndi carvacrol (2-8%)9, Komabe, thymol ali amphamvu antibacterial zotsatira chifukwa zili phenols mmenemo10.Tsoka ilo, kuphatikizika kwamafuta ofunikira a zomera kapena zinthu zomwe zimagwira ntchito mu matrices a biopolymer kumachepetsa kwambiri mphamvu zamakina zamakanema omwe amapeza biocomposite films11,12.Izi zikutanthauza kuti zida zonyamula ndi mafilimu opangidwa ndi pulasitiki okhala ndi mafuta ofunikira a chomera ayenera kuthandizidwa ndi chithandizo chowonjezera chowumitsa kuti apititse patsogolo luso lazotengera zawo.
Nthawi yotumiza: Oct-25-2022