Ngaba iplastiki ye-PE ikhuselekile ekutyeni?

Iplastiki yePolyethylene (PE), into esetyenziswa kakhulu ekupakisheni ukutya, ifumene ingqalelo ngenxa yokuguquguquka kwayo kunye nokhuseleko lwayo. Iplastiki ye-PE yipolymer eyenziwe ngeeyunithi ze-ethylene, eyaziwa ngokuzinza kwayo kunye nokungaphindi isebenze. Ezi mpawu zenza i-PE ibe lukhetho olufanelekileyo lokusetyenziswa kwinqanaba lokutya, njengoko ingangenisi iikhemikhali eziyingozi ekutyeni, nokuba ibekwe kumaqondo obushushu ahlukeneyo.

Izifundo zoKhuseleko kunye neMimiselo

Uphando olunzulu kunye nemigaqo engqongqo iqinisekisa ukuba iplastiki ye-PE yodidi lokutya ikhuselekile ekudibaneni nokutya. Izifundo zibonise ukuba iplastiki ye-PE ayikhuphi izinto eziyingozi phantsi kweemeko eziqhelekileyo zokusetyenziswa. Imibutho elawulayo efana ne-US Food and Drug Administration (FDA) kunye ne-European Food Safety Authority (EFSA) imisele izikhokelo kunye nemigangatho ekufuneka ifezekiswe yiplastiki ye-PE ukuze ibekwe njengodidi lokutya. Le migangatho ibandakanya ukuvavanywa kokufuduka kweekhemikhali, ukuqinisekisa ukuba naluphi na ukudluliselwa kwezinto ukusuka kwiplastiki ukuya ekutyeni kuhlala ngaphakathi kwemida ekhuselekileyo.

Izicelo Eziqhelekileyo Kwiphakheji Yokutya

Iplastiki ye-PE isetyenziswa kakhulu kwiindlela ezahlukeneyo zokupakisha ukutya, kuqukaIingxowa ze-PE, iingxowa ze-zipperkunyeiingxowa ze-ziplockEzi zisombululo zokupakisha zibonelela ngokumelana nokufuma okuhle kakhulu, ukuguquguquka, kunye nokuqina, okwenza zifaneleke ukugcina uluhlu olubanzi lweemveliso zokutya. Iingxowa ze-PE, umzekelo, zihlala zisetyenziselwa iimveliso ezisandula ukukhiwa, izidlo ezisandula ukukhiwa, kunye nokutya okukhenkcezisiweyo ngenxa yokuba zikwazi ukugcina ubutsha kunye nokwandisa ixesha lokugcinwa kwazo.

Ukuthelekisa nezinye iiplastiki

Xa kuthelekiswa nezinye iiplastiki, ezifana ne-polyvinyl chloride (PVC) kunye ne-polystyrene (PS), iplastiki ye-PE ithathwa njengekhuselekileyo kwaye inobuhlobo nokusingqongileyo. Umzekelo, i-PVC inokukhupha iikhemikhali eziyingozi ezifana nee-phthalates kunye nee-dioxins, ingakumbi xa zishushu. Ngokwahlukileyo koko, ulwakhiwo olulula lweekhemikhali ze-PE kunye nozinzo kwenza ukuba ibe lukhetho olukhethwayo lokupakisha ukutya, njengoko ibeka umngcipheko omncinci wokungcola.

Ukuxhasa idatha kunye nophando

Idatha evela kwizifundo zoshishino ixhasa ukhuseleko lweplastiki ye-PE. Umzekelo, uphando olwenziwe yi-EFSA lufumanise ukuba ukufuduka kwezinto ezivela kwiplastiki ye-PE ziye ekutyeni kwakungaphakathi kakhulu kwimida yokhuseleko emiselweyo. Ukongeza, ukuphindeka kwakhona okuphezulu kweplastiki ye-PE kuphucula ngakumbi ukuthandwa kwayo, njengoko inokulungiswa ngokufanelekileyo ibe ziimveliso ezintsha, nto leyo enciphisa impembelelo yokusingqongileyo.

Ukuququmbela,Iingxowa ze-PE, iingxowa ze-zipperkunyeiingxowa ze-ziplockZenziwe ngeplastiki ye-PE yodidi lokutya zikhetho ezikhuselekileyo nezithembekileyo zokupakisha ukutya. Uzinzo lwazo lweekhemikhali, ukuthobela imigangatho yokhuseleko, kunye nokusetyenziswa kwazo ngokubanzi kushishino kuzenza zibe lukhetho oluhle kakhulu kubathengi abafuna ukugcina nokukhusela ukutya kwabo. Ukuze ufumane ulwazi oluthe kratya ngeplastiki ye-PE kunye nokusetyenziswa kwayo, nceda ujonge kwizibonelelo ezibonelelweyo.