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Kolu phononongo, iifilimu ze-biodegradable zaphuhliswa ngokusekelwe kwi-chitosan (CH) ephuculwe nge-thyme ioli efunekayo (TEO) enezongezo ezahlukahlukeneyo ezibandakanya i-zinc oxide (ZnO), i-polyethylene glycol (PEG), i-nanoclay (NC) kunye ne-calcium.I-Chloride (CaCl2) kunye nokubonakalisa umgangatho wekale emva kokuvuna xa ifakwe efrijini.Iziphumo zibonisa ukuba ukufakwa kwe-ZnO/PEG/NC/CaCl2 kwiifilimu ezisekelwe kwi-CH kunciphisa kakhulu izinga lokuhanjiswa komphunga wamanzi, kwandisa amandla okuqina, kwaye i-soluble yamanzi kunye ne-biodegradable kwindalo.Ukongezelela, iifilimu ezisekelwe kwi-CH-TEO ezidityaniswe ne-ZnO / PEG / NC / CaCl2 ziphumelele kakhulu ekunciphiseni ukulahleka kwesisindo somzimba, ukugcina i-soluble solids, i-acidity ye-tittable, kunye nokugcina umxholo we-chlorophyll, kwaye ubonise i-a * ephantsi, inqanda ukukhula kwe-microbial., imbonakalo kunye neempawu ze-organoleptic zekhaphetshu zigcinwa iintsuku ezingama-24 xa kuthelekiswa ne-LDPE kunye nezinye iifilimu ezinokubola.Iziphumo zethu zibonisa ukuba iifilimu ezisekelwe kwi-CH eziye zatyetyiswa nge-TEO kunye nezongezo ezifana ne-ZnO / CaCl2 / NC / PEG ziyindlela ezinzileyo, ehambelana nokusingqongileyo, kunye neyona ndlela isebenzayo yokugcina ishelufu yekhaphetshu xa ifakwe efrijini.
Izinto zokupakisha ze-polymeric ezenziwe nge-synthetic ezivela kwi-petroleum sele zisetyenziswe kwishishini lokutya ukuqinisekisa umgangatho kunye nokhuseleko lweemveliso ezahlukeneyo zokutya.Iingenelo zezinto ezinjalo zemveli zibonakala ngenxa yokulula kwemveliso, ixabiso eliphantsi kunye neempawu ezintle zomqobo.Nangona kunjalo, ukusetyenziswa okukhulu kunye nokulahlwa kwezi zinto zingonakali ngokuqinisekileyo kuya kuyenza mandundu ngakumbi ingxaki yokungcoliseka kwendalo.Kule meko, ukuphuhliswa kokusingqongileyo kwezinto zokupakisha zendalo kuye kwakhawuleza kwiminyaka yamuva.Ezi bhanyabhanya zintsha azinatyhefu, ziyabola, zizinzileyo kwaye ziyahambelana1.Ukongeza kokungabi natyhefu kunye ne-biocompatible, ezi bhanyabhanya zisekwe kwi-biopolymers yendalo zinokuthwala i-antioxidants kwaye ke azibangeli nakuphi na ukungcoliseka kokutya kwendalo, kubandakanya ukuvuza kwezongezo ezifana ne-phthalates.Ke ngoko, ezi substrates zinokusetyenziswa njengenye indlela esebenzayo kwiiplastiki zepetroleum zemveli njengoko zinemisebenzi efanayo kwipakethe yokutya3.Namhlanje, ii-biopolymers ezivela kwiiprotheni, i-lipids kunye ne-polysaccharides ziye zaphuhliswa ngempumelelo, eziluluhlu lwezinto ezintsha zokupakisha ezihambelana nokusingqongileyo.I-Chitosan (CH) isetyenziswa ngokubanzi kwipakethe yokutya, kubandakanywa i-polysaccharides ezifana neselulosi kunye nesitashi, ngenxa yekhono layo lokubumba ifilimu elula, i-biodegradability, i-oksijini engcono kunye nokungabikho komphunga wamanzi, kunye neklasi elungileyo yamandla omatshini we-macromolecules yendalo eqhelekileyo.,5.Nangona kunjalo, i-antioxidant ephantsi kunye ne-antibacterial potential of CH films, eziyimilinganiselo ephambili yeefilimu zokupakisha ukutya okusebenzayo, imida yazo i-6, ngoko ke iamolekyu ezongezelelweyo zifakwe kwiifilimu ze-CH ukudala iintlobo ezintsha ezinokusebenza ngokufanelekileyo.
Iioyile ezibalulekileyo ezivela kwizityalo zinokudityaniswa kwiifilimu ze-biopolymer kwaye zinokunikezela ngepropathi ye-antioxidant okanye i-antibacterial kwiinkqubo zokupakisha, eziluncedo ekwandiseni ubomi beshelufu yokutya.I-oyile ye-Thyme yeyona nto ifundwayo kwaye isetyenzisiweyo i-oyile ebalulekileyo ngenxa ye-antibacterial, anti-inflammatory and antifungal properties.Ngokutsho kokwakhiwa kweoli efunekayo, iintlobo ezahlukeneyo ze-thyme chemotypes zachongwa, kuquka i-thymol (23-60%), i-p-cymol (8-44%), i-gamma-terpinene (18-50%), i-linalool (3-4%). ).%) kunye ne-carvacrol (2-8%), nangona kunjalo, i-thymol inempembelelo enamandla kakhulu ye-antibacterial ngenxa yomxholo we-phenols kuyo10.Ngelishwa, ukufakwa kweeoli eziyimfuneko zezityalo okanye izithako zabo ezisebenzayo kwiimatriki ze-biopolymer kunciphisa kakhulu amandla omatshini afunyenwe iifilimu ze-biocomposite11,12.Oku kuthetha ukuba izinto zokupakisha kunye neefilimu zeplastiki eziqulethe i-oyile ebalulekileyo yezityalo kufuneka zixhomekeke kunyango olongezelelweyo olunzima ukuphucula iimpawu zomatshini wokupakisha ukutya kwazo.
Ixesha lokuposa: Oct-25-2022